I want to show large image in my Crud Layout. I save an image byte to database like this.
byte[] image = cursor.getBlob(3);
When i insert image in my crud layout it give me error/blank page because the BLOB is too big in the database so i want to store the path of the image into the database and the use the path to access/display the image.
I don't know how to do it since im new in java
here's my code
CRUDActivity
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
public class CrudActivity extends AppCompatActivity {
EditText edtName, edtPrice;
Button btnChoose, btnAdd, btnList;
ImageView imageView;
final int REQUEST_CODE_GALLERY = 999;
public static SQLiteHelper sqLiteHelper;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crud);
init();
sqLiteHelper = new SQLiteHelper(this, "FoodDB.sqlite", null, 1);
sqLiteHelper.queryData("CREATE TABLE IF NOT EXISTS FOOD(Id INTEGER PRIMARY KEY AUTOINCREMENT, name VARCHAR, price VARCHAR, image BLOB)");
btnChoose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
ActivityCompat.requestPermissions(
CrudActivity.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_CODE_GALLERY
);
}
});
btnAdd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try{
sqLiteHelper.insertData(
edtName.getText().toString().trim(),
edtPrice.getText().toString().trim(),
imageViewToByte(imageView)
);
Toast.makeText(getApplicationContext(), "Added successfully!", Toast.LENGTH_SHORT).show();
edtName.setText("");
edtPrice.setText("");
imageView.setImageResource(R.mipmap.ic_launcher);
}
catch (Exception e){
e.printStackTrace();
}
}
});
btnList.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(CrudActivity.this, GudangList.class);
startActivity(intent);
}
});
}
public static byte[] imageViewToByte(ImageView image) {
Bitmap bitmap = ((BitmapDrawable)image.getDrawable()).getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
return byteArray;
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if(requestCode == REQUEST_CODE_GALLERY){
if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent, REQUEST_CODE_GALLERY);
}
else {
Toast.makeText(getApplicationContext(), "You don't have permission to access file location!", Toast.LENGTH_SHORT).show();
}
return;
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == REQUEST_CODE_GALLERY && resultCode == RESULT_OK && data != null){
Uri uri = data.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
imageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
private void init(){
edtName = (EditText) findViewById(R.id.edtName);
edtPrice = (EditText) findViewById(R.id.edtPrice);
btnChoose = (Button) findViewById(R.id.btnChoose);
btnAdd = (Button) findViewById(R.id.btnAdd);
btnList = (Button) findViewById(R.id.btnList);
imageView = (ImageView) findViewById(R.id.imageView);
}
}
Gudang.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class Gudang {
private int id;
private String name;
private String price;
private byte[] image;
public Gudang(String name, String price, byte[] image, int id) {
this.name = name;
this.price = price;
this.image = image;
this.id = id;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
public byte[] getImage() {
return image;
}
public void setImage(byte[] image) {
this.image = image;
}
}
GudangList.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.Manifest;
import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.ArrayList;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class GudangList extends AppCompatActivity {
GridView gridView;
ArrayList<Gudang> list;
GudangListAdapter adapter = null;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gudang_list_activity);
gridView = (GridView) findViewById(R.id.gridView);
list = new ArrayList<>();
adapter = new GudangListAdapter(this, R.layout.gudang_items, list);
gridView.setAdapter(adapter);
// get all data from sqlite
Cursor cursor = CrudActivity.sqLiteHelper.getData("SELECT * FROM FOOD");
list.clear();
while (cursor.moveToNext()) {
int id = cursor.getInt(0);
String name = cursor.getString(1);
String price = cursor.getString(2);
byte[] image = cursor.getBlob(3);
list.add(new Gudang(name, price, image, id));
}
adapter.notifyDataSetChanged();
gridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view, final int position, long id) {
CharSequence[] items = {"Update", "Delete"};
AlertDialog.Builder dialog = new AlertDialog.Builder(GudangList.this);
dialog.setTitle("Choose an action");
dialog.setItems(items, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
if (item == 0) {
// update
Cursor c = CrudActivity.sqLiteHelper.getData("SELECT id FROM FOOD");
ArrayList<Integer> arrID = new ArrayList<Integer>();
while (c.moveToNext()){
arrID.add(c.getInt(0));
}
// show dialog update at here
showDialogUpdate(GudangList.this, arrID.get(position));
} else {
// delete
Cursor c = CrudActivity.sqLiteHelper.getData("SELECT id FROM FOOD");
ArrayList<Integer> arrID = new ArrayList<Integer>();
while (c.moveToNext()){
arrID.add(c.getInt(0));
}
showDialogDelete(arrID.get(position));
}
}
});
dialog.show();
return true;
}
});
}
ImageView imageViewFood;
private void showDialogUpdate(Activity activity, final int position){
final Dialog dialog = new Dialog(activity);
dialog.setContentView(R.layout.update_gudang_activity);
dialog.setTitle("Update");
imageViewFood = (ImageView) dialog.findViewById(R.id.imageViewFood);
final EditText edtName = (EditText) dialog.findViewById(R.id.edtName);
final EditText edtPrice = (EditText) dialog.findViewById(R.id.edtPrice);
Button btnUpdate = (Button) dialog.findViewById(R.id.btnUpdate);
// set width for dialog
int width = (int) (activity.getResources().getDisplayMetrics().widthPixels * 0.95);
// set height for dialog
int height = (int) (activity.getResources().getDisplayMetrics().heightPixels * 0.7);
dialog.getWindow().setLayout(width, height);
dialog.show();
imageViewFood.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// request photo library
ActivityCompat.requestPermissions(
GudangList.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
888
);
}
});
btnUpdate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
CrudActivity.sqLiteHelper.updateData(
edtName.getText().toString().trim(),
edtPrice.getText().toString().trim(),
CrudActivity.imageViewToByte(imageViewFood),
position
);
dialog.dismiss();
Toast.makeText(getApplicationContext(), "Update successfully!!!",Toast.LENGTH_SHORT).show();
}
catch (Exception error) {
Log.e("Update error", error.getMessage());
}
updateFoodList();
}
});
}
private void showDialogDelete(final int idFood){
final AlertDialog.Builder dialogDelete = new AlertDialog.Builder(GudangList.this);
dialogDelete.setTitle("Warning!!");
dialogDelete.setMessage("Are you sure you want to this delete?");
dialogDelete.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
try {
CrudActivity.sqLiteHelper.deleteData(idFood);
Toast.makeText(getApplicationContext(), "Delete successfully!!!",Toast.LENGTH_SHORT).show();
} catch (Exception e){
Log.e("error", e.getMessage());
}
updateFoodList();
}
});
dialogDelete.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogDelete.show();
}
private void updateFoodList(){
// get all data from sqlite
Cursor cursor = CrudActivity.sqLiteHelper.getData("SELECT * FROM FOOD");
list.clear();
while (cursor.moveToNext()) {
int id = cursor.getInt(0);
String name = cursor.getString(1);
String price = cursor.getString(2);
byte[] image = cursor.getBlob(3);
list.add(new Gudang(name, price, image, id));
}
adapter.notifyDataSetChanged();
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if(requestCode == 888){
if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent, 888);
}
else {
Toast.makeText(getApplicationContext(), "You don't have permission to access file location!", Toast.LENGTH_SHORT).show();
}
return;
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == 888 && resultCode == RESULT_OK && data != null){
Uri uri = data.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
imageViewFood.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
GudangListAdapter.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class GudangListAdapter extends BaseAdapter {
private Context context;
private int layout;
private ArrayList<Gudang> foodsList;
public GudangListAdapter(Context context, int layout, ArrayList<Gudang> foodsList) {
this.context = context;
this.layout = layout;
this.foodsList = foodsList;
}
#Override
public int getCount() {
return foodsList.size();
}
#Override
public Object getItem(int position) {
return foodsList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
private class ViewHolder{
ImageView imageView;
TextView txtName, txtPrice;
}
#Override
public View getView(int position, View view, ViewGroup viewGroup) {
View row = view;
ViewHolder holder = new ViewHolder();
if(row == null){
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(layout, null);
holder.txtName = (TextView) row.findViewById(R.id.txtName);
holder.txtPrice = (TextView) row.findViewById(R.id.txtPrice);
holder.imageView = (ImageView) row.findViewById(R.id.imgFood);
row.setTag(holder);
}
else {
holder = (ViewHolder) row.getTag();
}
Gudang gudang = foodsList.get(position);
holder.txtName.setText(gudang.getName());
holder.txtPrice.setText(gudang.getPrice());
byte[] foodImage = gudang.getImage();
Bitmap bitmap = BitmapFactory.decodeByteArray(foodImage, 0, foodImage.length);
holder.imageView.setImageBitmap(bitmap);
return row;
}
}
SQLiteHelper
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteStatement;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class SQLiteHelper extends SQLiteOpenHelper {
public SQLiteHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
super(context, name, factory, version);
}
public void queryData(String sql){
SQLiteDatabase database = getWritableDatabase();
database.execSQL(sql);
}
public void insertData(String name, String price, byte[] image){
SQLiteDatabase database = getWritableDatabase();
String sql = "INSERT INTO FOOD VALUES (NULL, ?, ?, ?)";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindString(1, name);
statement.bindString(2, price);
statement.bindBlob(3, image);
statement.executeInsert();
}
public void updateData(String name, String price, byte[] image, int id) {
SQLiteDatabase database = getWritableDatabase();
String sql = "UPDATE FOOD SET name = ?, price = ?, image = ? WHERE id = ?";
SQLiteStatement statement = database.compileStatement(sql);
statement.bindString(1, name);
statement.bindString(2, price);
statement.bindBlob(3, image);
statement.bindDouble(4, (double)id);
statement.execute();
database.close();
}
public void deleteData(int id) {
SQLiteDatabase database = getWritableDatabase();
String sql = "DELETE FROM FOOD WHERE id = ?";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindDouble(1, (double)id);
statement.execute();
database.close();
}
public Cursor getData(String sql){
SQLiteDatabase database = getReadableDatabase();
return database.rawQuery(sql, null);
}
#Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
}
enter code here
Related
I have a android studio project and use 'com.timehop.stickyheadersrecyclerview:library:0.4.3#aar'
library it works fine but when I create a new project using same code It show me the following error in line 26 StickyRecyclerHeadersAdapter<CustomAdapter.MyHeadingViewHolder> { of CustomAdapter class:
Type parameter 'com.vatexpress.service.CustomAdapter.MyHeadingViewHolder' is not within its bound; should extend 'android.support.v7.widget.RecyclerView.ViewHolder'
and also show me following error in line 75 recyclerView.addItemDecoration(new StickyRecyclerHeadersDecoration(customAdapter));of ManinActivity class:
Type parameter 'com.vatexpress.service.CustomAdapter.MyHeadingViewHolder' is not within its bound; should extend 'android.support.v7.widget.RecyclerView.ViewHolder'
Here is my CustomAdapter class:
package com.vatexpress.service;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.timehop.stickyheadersrecyclerview.StickyRecyclerHeadersAdapter;
import java.util.ArrayList;
public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.MyChildViewHolder>
implements Filterable,
StickyRecyclerHeadersAdapter<CustomAdapter.MyHeadingViewHolder> {
private Context context;
private Activity activity;
private ArrayList<Model> dataholder;
ArrayList<Model> backup;
MyDatabaseHelper obj = null;
String code, nature, name, sd, vat, vds, vat_ref, vds_ref, about;
public static final int CHILD_LIST = 1;
public static final int HEADER = 2;
CustomAdapter(Activity activity, Context context, ArrayList<Model> dataholder){
this.activity = activity;
this.context = context;
this.dataholder = dataholder;
backup=new ArrayList<>(dataholder);
}
#NonNull
#Override
public MyChildViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.my_row, parent, false);
return new MyChildViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull final MyChildViewHolder holder, final int position) {
// if (holder instanceof MyChildViewHolder) {
final Model temp=dataholder.get(position);
holder.service_code.setText(dataholder.get(position).getService_code());
holder.service_name.setText(dataholder.get(position).getService_name());
//Recyclerview onClickListener
holder.mainLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(context, DetailActivity.class);
obj = new MyDatabaseHelper(context);
Cursor cursor = obj.getData(temp.id);
if (cursor != null) {
if (cursor.moveToFirst()) {
do {
code = cursor.getString(0);
nature = cursor.getString(2);
name = cursor.getString(1);
sd = cursor.getString(3);
vat = cursor.getString(4);
vds = cursor.getString(5);
vat_ref = cursor.getString(6);
vds_ref = cursor.getString(7);
about = cursor.getString(8);
} while (cursor.moveToNext());
}
}
intent.putExtra("code", code);
intent.putExtra("nature", nature);
intent.putExtra("servicename", name);
intent.putExtra("sd", sd);
intent.putExtra("vat", vat);
intent.putExtra("vds", vds);
intent.putExtra("vat_ref", vat_ref);
intent.putExtra("vds_ref", vds_ref);
intent.putExtra("about", about);
activity.startActivityForResult(intent, 1);
}
});
// }
// else if(holder instanceof MyHeadingViewHolder) {
// MyHeadingViewHolder myHeadingViewHolder = (MyHeadingViewHolder) holder;
// myHeadingViewHolder.heading.setText(dataholder.get(position).service_heading);
// }
}
#Override
public long getHeaderId(int position) {
return dataholder.get(position).getSection();
}
#Override
public MyHeadingViewHolder onCreateHeaderViewHolder(ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.heading_layout, parent, false);
return new MyHeadingViewHolder(view);
}
#Override
public void onBindHeaderViewHolder(MyHeadingViewHolder myHeadingViewHolder, int i) {
myHeadingViewHolder.heading.setText(dataholder.get(i).getService_heading());
}
#Override
public int getItemCount() {
return dataholder.size();
}
#Override
public Filter getFilter() {
return filter;
}
Filter filter=new Filter() {
#Override
// background thread
protected FilterResults performFiltering(CharSequence keyword)
{
ArrayList<Model> filtereddata=new ArrayList<>();
if(keyword.toString().isEmpty())
filtereddata.addAll(backup);
else
{
for(Model obj : backup)
{
if(obj.getService_name().toString().toLowerCase().contains(keyword.toString().toLowerCase()))
filtereddata.add(obj);
}
}
FilterResults results=new FilterResults();
results.values=filtereddata;
return results;
}
#Override // main UI thread
protected void publishResults(CharSequence constraint, FilterResults results)
{
dataholder.clear();
dataholder.addAll((ArrayList<Model>)results.values);
notifyDataSetChanged();
}
};
// #Override
// public int getItemViewType(int position) {
// if (dataholder.get(position).typeHeading)
// {
// return HEADER;
// }
// else {
// return CHILD_LIST;
// }
// }
class MyChildViewHolder extends RecyclerView.ViewHolder {
TextView service_code, service_name;
LinearLayout mainLayout;
MyChildViewHolder(#NonNull View itemView) {
super(itemView);
service_code = itemView.findViewById(R.id.service_code);
service_name = itemView.findViewById(R.id.service_name);
mainLayout = itemView.findViewById(R.id.mainLayout);
//Animate Recyclerview
Animation translate_anim = AnimationUtils.loadAnimation(context, R.anim.translate_anim);
mainLayout.setAnimation(translate_anim);
}
}
class MyHeadingViewHolder extends RecyclerView.ViewHolder {
TextView heading;
public MyHeadingViewHolder(#NonNull View itemView) {
super(itemView);
heading = itemView.findViewById(R.id.heading_name);
}
}
}
Here is my MainActivity class:
package com.vatexpress.service;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import com.timehop.stickyheadersrecyclerview.StickyRecyclerHeadersDecoration;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Locale;
public final class MainActivity extends AppCompatActivity {
private static final int REQUEST_CODE_SPEECH_INPUT =1000 ;
RecyclerView recyclerView;
TextView noSearchResultsFoundText;
EditText editText;
ImageView clearQueryImageView ;
ImageView voiceSearchImageView;
MyDatabaseHelper myDB;
ArrayList<Model> dataholder;
CustomAdapter customAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = findViewById(R.id.search_list);
noSearchResultsFoundText = findViewById(R.id.no_search_results_found_text);
myDB = new MyDatabaseHelper(MainActivity.this);
try {
myDB.createDataBase();
} catch (IOException ioe) {
throw new Error("Unable to create database");
}
try {
myDB.openDataBase();
} catch (SQLException sqle) {
throw sqle;
}
storeDataInArrays();
recyclerView.setLayoutManager(new LinearLayoutManager(this));
customAdapter = new CustomAdapter(MainActivity.this,this, dataholder);
recyclerView.setAdapter(customAdapter);
recyclerView.addItemDecoration(new StickyRecyclerHeadersDecoration(customAdapter));
editText = (EditText) findViewById(R.id.search_edit_text);
editText.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
public void onTextChanged(CharSequence s, int start, int before, int count) {
customAdapter.getFilter().filter(s.toString());
if (editText.getText().toString().isEmpty()){
clearQueryImageView.setVisibility(View.GONE);
voiceSearchImageView.setVisibility(View.VISIBLE);
}else{
clearQueryImageView.setVisibility(View.VISIBLE);
voiceSearchImageView.setVisibility(View.GONE);
}
}
});
voiceSearchImageView = findViewById(R.id.voice_search_query);
//button clic to show speech to text dilog
voiceSearchImageView.setOnClickListener( new View.OnClickListener() {
#Override
public void onClick(View v) {
speak();
}
} );
clearQueryImageView = findViewById(R.id.clear_search_query);
clearQueryImageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
editText.setText("");
}
});
}
private void speak() {
//intent is show speech to text dialog
Intent intent= new Intent( RecognizerIntent.ACTION_RECOGNIZE_SPEECH );
intent.putExtra( RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra( RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault() );
intent.putExtra( RecognizerIntent.EXTRA_PROMPT, "HI speak something" );
// Start intent
try {
//in there was no errror
//show dilog
startActivityForResult( intent, REQUEST_CODE_SPEECH_INPUT);
}
catch(Exception e){
//show messageof error and show
Toast.makeText( this,""+e.getMessage(), Toast.LENGTH_SHORT ).show();
}
}
//recive voice input and handle it
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult( requestCode, resultCode, data );
switch (requestCode){
case REQUEST_CODE_SPEECH_INPUT:{
if(resultCode==RESULT_OK && null!=data){
//get text arry form voice intent
ArrayList<String> result=data.getStringArrayListExtra( RecognizerIntent.EXTRA_RESULTS );
//set to text view
editText.setText( result.get( 0 ) );
}
break;
}
}
}
public void storeDataInArrays(){
dataholder = new ArrayList<>();
String code = "";
boolean firstTime = true;
int section = 0, count = 0;
Cursor cursor = myDB.readAllData();
if(cursor.getCount() == 0){
noSearchResultsFoundText.setVisibility(View.VISIBLE);
}else{
while (cursor.moveToNext()){
if (firstTime) {
code = cursor.getString(1);
Model obj=new Model(cursor.getString(0),cursor.getString(1), cursor.getString(2), cursor.getString(3), true, section);
firstTime = false;
dataholder.add(obj);
}
else
{
if (!code.equals(cursor.getString(1))) {
section = count;
Model obj=new Model(cursor.getString(0),cursor.getString(1), cursor.getString(2), cursor.getString(3), true, section);
dataholder.add(obj);
code = cursor.getString(1);
}
else
{
Model obj=new Model(cursor.getString(0),cursor.getString(1), cursor.getString(2), cursor.getString(3), false, section);
dataholder.add(obj);
}
}
count++;
}
noSearchResultsFoundText.setVisibility(View.GONE);
}
}
}
Please gives me solution how can I solve this!
I have custom list view and my data is coming from sqlite database. Now I want to change specific listview item's background color according to the id. First, I check the id if exist in database, then change particular item row background color according to the id.
My problem is that it checks successfully, but when I tried to change background color it changes whole listview background color. Here is picture and code of my data. Then you'll get my point, what actually I want to say you!
My db:
Whole listview color change:
My code:
package bible.swordof.God;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.opengl.Visibility;
import android.os.Vibrator;
import android.preference.PreferenceManager;
import android.speech.tts.TextToSpeech;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;
import com.amulyakhare.textdrawable.TextDrawable;
import com.amulyakhare.textdrawable.util.ColorGenerator;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import es.dmoral.toasty.Toasty;
import petrov.kristiyan.colorpicker.ColorPicker;
import static android.content.Context.MODE_PRIVATE;
import static android.database.sqlite.SQLiteDatabase.CONFLICT_NONE;
import static android.icu.lang.UCharacter.GraphemeClusterBreak.V;
import static android.support.constraint.Constraints.TAG;
import static android.support.v4.content.ContextCompat.createDeviceProtectedStorageContext;
import static android.support.v4.content.ContextCompat.startActivity;
public class FullverseAdopter extends ArrayAdapter<String> {
private ALLVERSE activity;
private List<String> versenumber;
private List<String>verseid;
private List<String> verselist;
private List<String> refernce;
TextToSpeech textToSpeech;
private DatabaseHelper mDBHelper;
private SQLiteDatabase mDb;
private boolean highlight=false;
LinearLayout linearLayout;
public String ex="switch";
//check for availabe language
int result;
public FullverseAdopter(ALLVERSE context, int resource, List<String> versenumber, List<String> verselist, List<String> refernce, List<String>verseid) {
super(context, resource, versenumber);
this.activity = context;
this.versenumber = versenumber;
this.verselist = verselist;
this.refernce = refernce;
this.verseid=verseid;
}
#Override
public int getCount() {
return versenumber.size();
}
#Override
public String getItem(int position) {
return versenumber.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
final ViewHolder holder;
LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
// If holder not exist then locate all view from UI file.
if (convertView == null) {
// inflate UI from XML file
convertView = inflater.inflate(R.layout.versedisplayrow, parent, false);
// get all UI view
holder = new ViewHolder(convertView);
// set tag for holder
holder.versenumber = (TextView) convertView.findViewById(R.id.versenumber);
holder.verselist = (TextView) convertView.findViewById(R.id.verse);
holder.addfavoruite=(ToggleButton)convertView.findViewById(R.id.adbookmark);
//check if id is exits in db
if(CheckIsDataAlreadyInDBorNot("t_asv","id","1001001"))
{
holder.linearLayout.setBackgroundColor(Color.parseColor("#008577"));
}
convertView.setTag(holder);
} else {
// if holder created, get tag from view
holder = (ViewHolder) convertView.getTag();
}
holder.versenumber.setText(versenumber.get(position));
holder.verselist.setText(verselist.get(position));
holder.linearLayout.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
//Toasty.success(activity, "PICK COLOR", Toast.LENGTH_SHORT, true).show();
Vibrator vibe = (Vibrator)activity.getSystemService(Context.VIBRATOR_SERVICE);
vibe.vibrate(100);
Toast.makeText(activity, ""+verseid.get(position), Toast.LENGTH_SHORT).show();
/* ColorPicker colorPicker = new ColorPicker(activity);
ArrayList<String>colors=new ArrayList<>();
colors.add("#e0e0eb");
colors.add("#ccffff");
colors.add("#ffe6ff");
colors.add("#ffffcc");
colors.add("#ccffcc");
colors.add("#e6f2ff");
colorPicker.setColors(colors).setColumns(4).setTitle("HIGHLIGHT VERSE").setRoundColorButton(true).setOnChooseColorListener(new ColorPicker.OnChooseColorListener() {
#Override
public void onChooseColor(int position, int color) {
// holder.linearLayout.setBackgroundColor(color);
}
#Override
public void onCancel() {
}
}).show();*/
return false;
}
});
/*holder.verselist.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
holder.verselist.setBackgroundColor(Color.parseColor("#e0e0eb"));
return false;
}
});*/
//verselist highlight
/*holder.verselist.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});*/
//share verse
holder.share.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toasty.info(activity, "Sharing a verse.", Toast.LENGTH_SHORT, true).show();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, refernce.get(position) + ":" + versenumber.get(position) + '\n' + verselist.get(position));
sendIntent.setType("text/plain");
activity.startActivity(sendIntent);
}
});
//add in favourite
holder.addfavoruite.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getWritableDatabase();
ContentValues contentValues=new ContentValues();
contentValues.put("id",verseid.get(position));
contentValues.put("bookname",refernce.get(position));
contentValues.put("versenumber",versenumber.get(position));
contentValues.put("verse",verselist.get(position));
long check=mDb.insert("favourite",null,contentValues);
Log.d("MY_TAG","DB IS NOW "+check);
Toasty.success(activity, "Added in favouite", Toast.LENGTH_SHORT, true).show();
}else {
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getWritableDatabase();
long delete= mDb.delete("favourite","id=?",new String[]{verseid.get(position)});
Toasty.error(activity, "Remove in favouite", Toast.LENGTH_SHORT, true).show();
}
}
});
/* textToSpeech = new TextToSpeech(activity, new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
result = textToSpeech.setLanguage(Locale.ENGLISH);
} else {
Toast.makeText(activity, "YOUR DEVICE NOT SUPPORTED", Toast.LENGTH_SHORT).show();
}
}
});
*/
//My toggle button
/* holder.speakverse.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(activity, "I AM CLICKED", Toast.LENGTH_SHORT).show();
if (result == TextToSpeech.LANG_NOT_SUPPORTED || result == TextToSpeech.LANG_MISSING_DATA) {
Toast.makeText(activity, "Language not supported or Missing", Toast.LENGTH_SHORT).show();
} else {
textToSpeech.speak(verselist.get(position), TextToSpeech.QUEUE_FLUSH, null);
}
}
});*/
return convertView;
}
static class ViewHolder {
private TextView versenumber;
private TextView verselist;
private ImageView share;
private ToggleButton addfavoruite;
private ImageView speakverse;
private LinearLayout linearLayout;
public ViewHolder(View v) {
versenumber = (TextView) v.findViewById(R.id.versenumber);
verselist = (TextView) v.findViewById(R.id.verse);
share = (ImageView) v.findViewById(R.id.share);
/*speakverse = (ImageView) v.findViewById(R.id.speakverse);*/
addfavoruite=(ToggleButton)v.findViewById(R.id.adbookmark);
linearLayout=(LinearLayout)v.findViewById(R.id.layout);
}
}
public boolean CheckIsDataAlreadyInDBorNot(String TableName, String dbfield, String fieldValue) {
mDBHelper = new DatabaseHelper(activity);
mDb = mDBHelper.getReadableDatabase();
String Query = "Select * from " + TableName + " where " + dbfield + " = " + fieldValue;
Cursor cursor = mDb.rawQuery(Query, null);
if(cursor.getCount() <= 0){
cursor.close();
Toast.makeText(activity, "false", Toast.LENGTH_SHORT).show();
return false;
}else {
Toast.makeText(activity, "TRUE", Toast.LENGTH_SHORT).show();
}
cursor.close();
return true;
}
public void opecolorpicker(){
}
}
Assuming you store the IDs in private List<String>verseid;, you can use it to check the ID of current ListView item.
The current item position is passed to you in final int position parameter.
So to check and apply color:
Remove
if(CheckIsDataAlreadyInDBorNot("t_asv","id","1001001"))
{
holder.linearLayout.setBackgroundColor(Color.parseColor("#008577"));
}
from if (convertView == null) {
Then add this code right outside that if:
if("1001001".equals(verseid.get(position))) {
//change the color
} else {
//set the color to default
}
Note that due to the way the ListView works (recycling items) you have to set the default color inside else.
I want to show a large image in my Crud Layout. I success upload image with size 1mb+ but can't upload image more than 2mb.
any solution? maybe reduce an Image file size before uploading to SQLite server?
here's my code
I will really appreciate if you help me
CRUDActivity
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
public class CrudActivity extends AppCompatActivity {
EditText edtName, edtPrice;
Button btnChoose, btnAdd, btnList;
ImageView imageView;
final int REQUEST_CODE_GALLERY = 999;
public static SQLiteHelper sqLiteHelper;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crud);
init();
sqLiteHelper = new SQLiteHelper(this, "FoodDB.sqlite", null, 1);
sqLiteHelper.queryData("CREATE TABLE IF NOT EXISTS FOOD(Id INTEGER PRIMARY KEY AUTOINCREMENT, name VARCHAR, price VARCHAR, image BLOB)");
btnChoose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
ActivityCompat.requestPermissions(
CrudActivity.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_CODE_GALLERY
);
}
});
btnAdd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try{
sqLiteHelper.insertData(
edtName.getText().toString().trim(),
edtPrice.getText().toString().trim(),
imageViewToByte(imageView)
);
Toast.makeText(getApplicationContext(), "Added successfully!", Toast.LENGTH_SHORT).show();
edtName.setText("");
edtPrice.setText("");
imageView.setImageResource(R.mipmap.ic_launcher);
}
catch (Exception e){
e.printStackTrace();
}
}
});
btnList.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(CrudActivity.this, GudangList.class);
startActivity(intent);
}
});
}
public static byte[] imageViewToByte(ImageView image) {
Bitmap bitmap = ((BitmapDrawable)image.getDrawable()).getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
return byteArray;
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if(requestCode == REQUEST_CODE_GALLERY){
if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.setType("image/*");
startActivityForResult(intent, REQUEST_CODE_GALLERY);
}
else {
Toast.makeText(getApplicationContext(), "You don't have permission to access file location!", Toast.LENGTH_SHORT).show();
}
return;
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == REQUEST_CODE_GALLERY && resultCode == RESULT_OK && data != null){
Uri uri = data.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
imageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
private void init(){
edtName = (EditText) findViewById(R.id.edtName);
edtPrice = (EditText) findViewById(R.id.edtPrice);
btnChoose = (Button) findViewById(R.id.btnChoose);
btnAdd = (Button) findViewById(R.id.btnAdd);
btnList = (Button) findViewById(R.id.btnList);
imageView = (ImageView) findViewById(R.id.imageView);
}
}
Gudang.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class Gudang {
private int id;
private String name;
private String price;
private byte[] image;
public Gudang(String name, String price, byte[] image, int id) {
this.name = name;
this.price = price;
this.image = image;
this.id = id;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
public byte[] getImage() {
return image;
}
public void setImage(byte[] image) {
this.image = image;
}
}
GudangList.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.Manifest;
import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.ArrayList;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class GudangList extends AppCompatActivity {
GridView gridView;
ArrayList<Gudang> list;
GudangListAdapter adapter = null;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gudang_list_activity);
gridView = (GridView) findViewById(R.id.gridView);
list = new ArrayList<>();
adapter = new GudangListAdapter(this, R.layout.gudang_items, list);
gridView.setAdapter(adapter);
// get all data from sqlite
Cursor cursor = CrudActivity.sqLiteHelper.getData("SELECT * FROM FOOD");
list.clear();
while (cursor.moveToNext()) {
int id = cursor.getInt(0);
String name = cursor.getString(1);
String price = cursor.getString(2);
byte[] image = cursor.getBlob(3);
list.add(new Gudang(name, price, image, id));
}
adapter.notifyDataSetChanged();
gridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view, final int position, long id) {
CharSequence[] items = {"Update", "Delete"};
AlertDialog.Builder dialog = new AlertDialog.Builder(GudangList.this);
dialog.setTitle("Choose an action");
dialog.setItems(items, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int item) {
if (item == 0) {
// update
Cursor c = CrudActivity.sqLiteHelper.getData("SELECT id FROM FOOD");
ArrayList<Integer> arrID = new ArrayList<Integer>();
while (c.moveToNext()){
arrID.add(c.getInt(0));
}
// show dialog update at here
showDialogUpdate(GudangList.this, arrID.get(position));
} else {
// delete
Cursor c = CrudActivity.sqLiteHelper.getData("SELECT id FROM FOOD");
ArrayList<Integer> arrID = new ArrayList<Integer>();
while (c.moveToNext()){
arrID.add(c.getInt(0));
}
showDialogDelete(arrID.get(position));
}
}
});
dialog.show();
return true;
}
});
}
ImageView imageViewFood;
private void showDialogUpdate(Activity activity, final int position){
final Dialog dialog = new Dialog(activity);
dialog.setContentView(R.layout.update_gudang_activity);
dialog.setTitle("Update");
imageViewFood = (ImageView) dialog.findViewById(R.id.imageViewFood);
final EditText edtName = (EditText) dialog.findViewById(R.id.edtName);
final EditText edtPrice = (EditText) dialog.findViewById(R.id.edtPrice);
Button btnUpdate = (Button) dialog.findViewById(R.id.btnUpdate);
// set width for dialog
int width = (int) (activity.getResources().getDisplayMetrics().widthPixels * 0.95);
// set height for dialog
int height = (int) (activity.getResources().getDisplayMetrics().heightPixels * 0.7);
dialog.getWindow().setLayout(width, height);
dialog.show();
imageViewFood.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// request photo library
ActivityCompat.requestPermissions(
GudangList.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
888
);
}
});
btnUpdate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
CrudActivity.sqLiteHelper.updateData(
edtName.getText().toString().trim(),
edtPrice.getText().toString().trim(),
CrudActivity.imageViewToByte(imageViewFood),
position
);
dialog.dismiss();
Toast.makeText(getApplicationContext(), "Update successfully!!!",Toast.LENGTH_SHORT).show();
}
catch (Exception error) {
Log.e("Update error", error.getMessage());
}
updateFoodList();
}
});
}
private void showDialogDelete(final int idFood){
final AlertDialog.Builder dialogDelete = new AlertDialog.Builder(GudangList.this);
dialogDelete.setTitle("Warning!!");
dialogDelete.setMessage("Are you sure you want to this delete?");
dialogDelete.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
try {
CrudActivity.sqLiteHelper.deleteData(idFood);
Toast.makeText(getApplicationContext(), "Delete successfully!!!",Toast.LENGTH_SHORT).show();
} catch (Exception e){
Log.e("error", e.getMessage());
}
updateFoodList();
}
});
dialogDelete.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialogDelete.show();
}
private void updateFoodList(){
// get all data from sqlite
Cursor cursor = CrudActivity.sqLiteHelper.getData("SELECT * FROM FOOD");
list.clear();
while (cursor.moveToNext()) {
int id = cursor.getInt(0);
String name = cursor.getString(1);
String price = cursor.getString(2);
byte[] image = cursor.getBlob(3);
list.add(new Gudang(name, price, image, id));
}
adapter.notifyDataSetChanged();
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if(requestCode == 888){
if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.setType("image/*");
startActivityForResult(intent, 888);
}
else {
Toast.makeText(getApplicationContext(), "You don't have permission to access file location!", Toast.LENGTH_SHORT).show();
}
return;
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == 888 && resultCode == RESULT_OK && data != null){
Uri uri = data.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
imageViewFood.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
GudangListAdapter.java
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class GudangListAdapter extends BaseAdapter {
private Context context;
private int layout;
private ArrayList<Gudang> foodsList;
public GudangListAdapter(Context context, int layout, ArrayList<Gudang> foodsList) {
this.context = context;
this.layout = layout;
this.foodsList = foodsList;
}
#Override
public int getCount() {
return foodsList.size();
}
#Override
public Object getItem(int position) {
return foodsList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
private class ViewHolder{
ImageView imageView;
TextView txtName, txtPrice;
}
#Override
public View getView(int position, View view, ViewGroup viewGroup) {
View row = view;
ViewHolder holder = new ViewHolder();
if(row == null){
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(layout, null);
holder.txtName = (TextView) row.findViewById(R.id.txtName);
holder.txtPrice = (TextView) row.findViewById(R.id.txtPrice);
holder.imageView = (ImageView) row.findViewById(R.id.imgFood);
row.setTag(holder);
}
else {
holder = (ViewHolder) row.getTag();
}
Gudang gudang = foodsList.get(position);
holder.txtName.setText(gudang.getName());
holder.txtPrice.setText(gudang.getPrice());
byte[] foodImage = gudang.getImage();
Bitmap bitmap = BitmapFactory.decodeByteArray(foodImage, 0, foodImage.length);
holder.imageView.setImageBitmap(bitmap);
return row;
}
}
SQLiteHelper
package foodsqlitedemo.quocnguyen.com.foodsqlitedemo;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteStatement;
/**
* Created by Quoc Nguyen on 13-Dec-16.
*/
public class SQLiteHelper extends SQLiteOpenHelper {
public SQLiteHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
super(context, name, factory, version);
}
public void queryData(String sql){
SQLiteDatabase database = getWritableDatabase();
database.execSQL(sql);
}
public void insertData(String name, String price, byte[] image){
SQLiteDatabase database = getWritableDatabase();
String sql = "INSERT INTO FOOD VALUES (NULL, ?, ?, ?)";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindString(1, name);
statement.bindString(2, price);
statement.bindBlob(3, image);
statement.executeInsert();
}
public void updateData(String name, String price, byte[] image, int id) {
SQLiteDatabase database = getWritableDatabase();
String sql = "UPDATE FOOD SET name = ?, price = ?, image = ? WHERE id = ?";
SQLiteStatement statement = database.compileStatement(sql);
statement.bindString(1, name);
statement.bindString(2, price);
statement.bindBlob(3, image);
statement.bindDouble(4, (double)id);
statement.execute();
database.close();
}
public void deleteData(int id) {
SQLiteDatabase database = getWritableDatabase();
String sql = "DELETE FROM FOOD WHERE id = ?";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindDouble(1, (double)id);
statement.execute();
database.close();
}
public Cursor getData(String sql){
SQLiteDatabase database = getReadableDatabase();
return database.rawQuery(sql, null);
}
#Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
}
enter code here
It is not advisable to store large BLOBS or similar data in the SQLite database. You should use the file system and only store a reference to the data in you database
Generally you should avoid blobs in SQLite as they perform poorly; instead save the blob data as a file and store the location of the file in your DB.
There's a limit of 1MB on internal assets due to dynamic decompression; the 1MB limit also seems to apply to Cursor blobs but this doesn't seem to be documented anywhere.
so you store your image in internal directory and its path is insert in SQLite DB so its easy for you
I am trying to use onActivityResult in my RecyclerViewAdapter. But I get the error that the 'The method does not override from its superclass'. I tried implementing the interface but onActivityResult never gets called. I have already searched enough on the StackOverflow questions like this one but couldn't find anything helpful.
RecyclerViewAdapter.java
package com.example.waheed.telegramchat;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.List;
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.RecyclerViewHolder> {
//String arrays to store user data
static String[] contact_name, Phone_no, user_id;
Context context;
public RecyclerAdapter(String[] contact_name, String[] Phone_no, String[] user_id, Context context) {
//Getting the data from MainActivity.java
this.context = context;
this.user_id = user_id;
this.contact_name = contact_name;
this.Phone_no = Phone_no;
}
#NonNull
#Override
public RecyclerAdapter.RecyclerViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
//Setting the row layout for Recyclerview
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_layout, parent, false);
RecyclerViewHolder recyclerViewHolder = new RecyclerViewHolder(view, this.context);
return recyclerViewHolder;
}
#Override
public void onBindViewHolder(#NonNull RecyclerViewHolder holder, int position) {
holder.tx_contact.setText(contact_name[position]);
holder.tx_phone.setText(Phone_no[position]);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public int getItemViewType(int position) {
return position;
}
#Override
public int getItemCount() {
return contact_name.length;
}
public static class RecyclerViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
Context context;
TextView tx_contact, tx_phone;
ImageButton message_btn;
static ImageView img_profile;
public RecyclerViewHolder(View itemView, Context context) {
super(itemView);
tx_contact = (TextView) itemView.findViewById(R.id.txt_contactname);
tx_phone = (TextView) itemView.findViewById(R.id.phonenumber);
message_btn = (ImageButton) itemView.findViewById(R.id.chat_icon);
img_profile = (ImageView) itemView.findViewById(R.id.profile_pic);
this.context = context;
//Calling onclick function
message_btn.setOnClickListener(this);
img_profile.setOnClickListener(this);
}
public void makeCall(String ID, String name, String packageName, String className) {
//
String data = "content://com.android.contacts/data/" + ID;
// Build the intent
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
// the _ids you save goes here at the end of /data/id
intent.setData(Uri.parse("content://com.android.contacts/data/" + ID));
intent.setDataAndType(Uri.parse(data), className);
intent.setPackage(packageName);
// Verify it resolves
PackageManager packageManager = context.getPackageManager();
List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);
boolean isIntentSafe = activities.size() > 0;
Log.d("See this " + ID, activities.size() + "");
// Start an activity if it's safe
if (isIntentSafe) {
try {
//Toast to show which user is being called
context.startActivity(intent);
Toast.makeText(context, "Opening chat with " + name + " on Telegram", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
Toast.makeText(context, "OOPS!,Something went wrong\nPlease grant app permissions in setting or send feedback.", Toast.LENGTH_LONG).show();
}
}
}
#Override
public void onClick(View v) {
//Getting the position of the item clicked
int i = getAdapterPosition();
//Storing the selected items in Strings
String name = RecyclerAdapter.contact_name[i];
String phone = RecyclerAdapter.Phone_no[i];
String ID = RecyclerAdapter.user_id[i];
String mimeType = "vnd.android.cursor.item/vnd.org.telegram.messenger.android.profile";
String packageName = "org.telegram.messenger";
switch (v.getId()) {
case R.id.chat_icon:
makeCall(ID, name, packageName, mimeType);
break;
case R.id.profile_pic:
Intent intent = new Intent(this.context, showImages.class);
((Activity) context).startActivityForResult(intent, 1);
break;
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Bitmap bitmap;
if (requestCode == 1) {
if (resultCode == showImages.RESULT_OK) {
String result = data.getStringExtra("result");
Toast.makeText(this.context, "Clicked item is " + result, Toast.LENGTH_SHORT).show();
bitmap = BitmapFactory.decodeFile(result);
RecyclerViewHolder.img_profile.setImageBitmap(bitmap);
}
if (resultCode == showImages.RESULT_CANCELED) {
//Write your code if there's no result
}
}
}
}
}
showImages.java
package com.example.waheed.telegramchat;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import com.ImageAdapter;
import java.io.File;
import java.util.ArrayList;
public class showImages extends AppCompatActivity {
ImageAdapter myImageAdapter;
GridView gridView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_images);
gridView = (GridView) findViewById(R.id.gridview);
myImageAdapter = new ImageAdapter(this);
gridView.setAdapter(myImageAdapter);
String ExternalStorageDirectoryPath = Environment
.getExternalStorageDirectory()
.getAbsolutePath();
String targetPath = ExternalStorageDirectoryPath + "/Android/data/org.telegram.messenger/cache/";
File targetDirector = new File(targetPath);
final ArrayList<String> imagePaths = new ArrayList<String>();
final File[] files = targetDirector.listFiles();
for (File file : files) {
if (file.getName().toLowerCase().endsWith(".jpg") ||
file.getName().toLowerCase().endsWith(".png")) {
imagePaths.add(file.getAbsolutePath());
myImageAdapter.add(file.getAbsolutePath());
}
}
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String result = imagePaths.get(position);
Intent returnIntent = new Intent();
returnIntent.putExtra("result", result);
setResult(showImages.RESULT_OK, returnIntent);
finish();
}
});
}
}
The RecyclerView.ViewHolder class does not contain a definition of an onActivityResult method that it can override.
onActivityResult, as far as I understand, only appears as a method of the Activity & Fragment classes.
Move the code
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Bitmap bitmap;
if (requestCode == 1) {
if (resultCode == showImages.RESULT_OK) {
String result = data.getStringExtra("result");
Toast.makeText(this.context, "Clicked item is " + result, Toast.LENGTH_SHORT).show();
bitmap = BitmapFactory.decodeFile(result);
RecyclerViewHolder.img_profile.setImageBitmap(bitmap);
}
if (resultCode == showImages.RESULT_CANCELED) {
//Write your code if there's no result
}
}
}
to the class that initiated the call to showImages. I noticed that showImages closes when item is clicked.
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String result = imagePaths.get(position);
Intent returnIntent = new Intent();
returnIntent.putExtra("result", result);
setResult(showImages.RESULT_OK, returnIntent);
finish();
}
});
You have to override onActivityResult in your activity wich contains the recyclerview not in viewholder class
You must implement onActivityResult in your activity class not in RecyclerViewAdapter. This method is used from your activity to retrieve data from other intents/activities that have started from your activity and normally
it has no place inside RecyclerViewAdapter.
you should use onActivityForResult in activity ,and create interface to handle action ,logic - adapter only display view.
I developed a word app that contains English vocabularies and users can add their favorite word by clicking on a floating button. Every time my favorite list has at list one item it is updated but when it's empty it doesn't show anything but when I run app again list updates.
if you need any code let me know to send it .
UPDATE:
Inner page :
selectDb();
if(selectFavoriteState()){
favorite.setImageResource(R.drawable.ic_favorite_like);
}else {
favorite.setImageResource(R.drawable.ic_favorite_maylike);
}
favorite.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (selectFavoriteState()){
favorite.setImageResource(R.drawable.ic_favorite_maylike);
updateUnfavorited();
}else {
favorite.setImageResource(R.drawable.ic_favorite_like);
updateFavorited();
}
}
});
private void selectDb(){
destpath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/ielts/";
database = SQLiteDatabase.openOrCreateDatabase(destpath + "/md_book.db", null);
}
private boolean selectFavoriteState(){
#SuppressLint("Recycle") Cursor cursor = database.rawQuery("SELECT * FROM main WHERE id = " + id, null);
while (cursor.moveToNext()){
favoriteState = cursor.getString(cursor.getColumnIndex("fav"));
}
return favoriteState.equals("1");
}
private void updateFavorited(){
database.execSQL( "UPDATE main SET fav = 1 WHERE id = " + id);
}
private void updateUnfavorited(){
database.execSQL( "UPDATE main SET fav = 0 WHERE id = " + id);
}
Update 2:
package farmani.com.essentialwordsforielts.mainPage;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import farmani.com.essentialwordsforielts.R;
public class PageFragment extends Fragment {
private int mPage;
public static final String ARG_PAGE = "ARG_PAGE";
RecyclerView recyclerView;
AdapterFav adapterFav;
public static PageFragment newInstance(int page) {
Bundle args = new Bundle();
args.putInt(ARG_PAGE, page);
PageFragment fragment = new PageFragment();
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate( Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPage = getArguments().getInt(ARG_PAGE);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_page, container, false);
if (mPage == 1) {
recyclerView = (RecyclerView) view.findViewById(R.id.my_recycler_view);
AdapterList adapter = new AdapterList(MainActivity.context);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(MainActivity.context));
}
if (mPage == 2) {
recyclerView = (RecyclerView) view.findViewById(R.id.my_recycler_view);
adapterFav = new AdapterFav(MainActivity.context);
recyclerView.setAdapter(adapterFav);
recyclerView.setLayoutManager(new LinearLayoutManager(MainActivity.context));
}
return view;
}
#Override
public void onResume() {
super.onResume();
if (adapterFav != null){
adapterFav.notifyDataSetChanged();
}
}
}
Update 3 :AdapterFav
package farmani.com.essentialwordsforielts.mainPage;
import android.content.Context;
import android.content.Intent;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import farmani.com.essentialwordsforielts.R;
import farmani.com.essentialwordsforielts.innerpage.ActivityInnerPage;
public class AdapterFav extends RecyclerView.Adapter<ViewHolder> {
Context context;
LayoutInflater inflater;
TextView title;
ImageView avatar;
LinearLayout cardAdapter;
public AdapterFav(Context context){
this.context = context;
inflater = LayoutInflater.from(context);
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.adapter_card_view, parent, false);
title = (TextView) view.findViewById(R.id.title1);
avatar = (ImageView) view.findViewById(R.id.avatar);
cardAdapter = (LinearLayout) view.findViewById(R.id.card_adapter);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.title.setText(MainActivity.favorite.get(position).getWord());
String img = MainActivity.favorite.get(position).getImg();
int id = MainActivity.context.getResources().getIdentifier(img, "drawable", MainActivity.context.getPackageName());
holder.avatar.setImageResource(id);
holder.cardAdapter.setOnClickListener(clickListener);
holder.cardAdapter.setId(position);
}
View.OnClickListener clickListener = new View.OnClickListener() {
#Override
public void onClick(View view) {
int position = view.getId();
Intent intent = new Intent (MainActivity.context, ActivityInnerPage.class);
intent.putExtra("name", "favorite");
intent.putExtra("id", position + "");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
MainActivity.context.startActivity(intent);
}
};
#Override
public int getItemCount() {
return MainActivity.favorite.size();
}
}
Update 4: MainActivity
package farmani.com.essentialwordsforielts.mainPage;
import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Build;
import android.os.Environment;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.design.widget.TabLayout;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
import com.nabinbhandari.android.permissions.PermissionHandler;
import com.nabinbhandari.android.permissions.Permissions;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import farmani.com.essentialwordsforielts.R;
import farmani.com.essentialwordsforielts.search.ActivitySearch;
import farmani.com.essentialwordsforielts.setting.ActivitySetting;
public class MainActivity extends AppCompatActivity {
public static Context context;
public static ArrayList<Structure> list = new ArrayList<>();
public static ArrayList<Structure> favorite = new ArrayList<>();
DrawerLayout drawerLayout;
NavigationView navigationView;
ImageView hamburger;
SQLiteDatabase database;
String destPath;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.navigation_activity_main);
Permissions.check(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE},
" storage permissions are required to copy database", new Permissions.Options()
.setSettingsDialogTitle("Warning!").setRationaleDialogTitle("Info"),
new PermissionHandler() {
#Override
public void onGranted() {
setupDB();
selectList();
selectFavorite();
}
});
context = getApplicationContext();
setTabOption();
drawerLayout = findViewById(R.id.navigation_drawer);
navigationView = findViewById(R.id.navigation_view);
hamburger = findViewById(R.id.hamburger);
hamburger.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
drawerLayout.openDrawer(Gravity.START);
}
});
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
int id = item.getItemId();
if (id == R.id.exit) {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
MainActivity.this);
alertDialog.setTitle(R.string.exit);
alertDialog.setMessage(R.string.exit_ask);
alertDialog.setCancelable(false);
alertDialog.setPositiveButton(R.string.yes,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int
which) {
finish();
}
});
alertDialog.setNegativeButton(R.string.no,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int
which) {
dialog.cancel();
}
});
alertDialog.show();
}else if (id == R.id.search) {
Intent intent = new Intent(MainActivity.this, ActivitySearch.class);
MainActivity.this.startActivity(intent);
} else if (id == R.id.setting) {
Intent intent = new Intent(MainActivity.this, ActivitySetting.class);
MainActivity.this.startActivity(intent);
}
return true;
}
});
}
#Override
public void onBackPressed() {
if (drawerLayout.isDrawerOpen(Gravity.START)) {
drawerLayout.closeDrawer(Gravity.START);
} else {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
MainActivity.this);
alertDialog.setTitle(R.string.exit);
alertDialog.setMessage(R.string.exit_ask);
alertDialog.setCancelable(false);
alertDialog.setPositiveButton(R.string.yes,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alertDialog.setNegativeButton(R.string.no,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
}
private void setTabOption() {
ViewPager viewPager = findViewById(R.id.viewpager);
viewPager.setAdapter(new AdapterFragment(getSupportFragmentManager(),
context));
TabLayout tabStrip = findViewById(R.id.tabs);
tabStrip.setupWithViewPager(viewPager);
}
#Override
protected void onResume() {
super.onResume();
if (!list.isEmpty()){
list.clear();
selectList();
} if (!favorite.isEmpty()){
favorite.clear();
selectFavorite();
}
}
private void setupDB() {
try {
destPath =
Environment.getExternalStorageDirectory().getAbsolutePath() + "/ielts/";
File file = new File(destPath);
if (!file.exists()) {
file.mkdirs();
file.createNewFile();
CopyDB(getBaseContext().getAssets().open("md_book.db"),
new FileOutputStream(destPath + "/md_book.db"));
}
} catch (IOException e1) {
e1.printStackTrace();
}
}
private void CopyDB(InputStream inputStream, OutputStream outputStream)
throws IOException {
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
}
private void selectFavorite() {
database = SQLiteDatabase.openOrCreateDatabase(destPath + "/md_book.db",
null);
#SuppressLint("Recycle") Cursor cursor = database.rawQuery("SELECT * FROM main WHERE fav = 1",
null);
while (cursor.moveToNext()) {
String word = cursor.getString(cursor.getColumnIndex("word"));
String definition =
cursor.getString(cursor.getColumnIndex("definition"));
String trans = cursor.getString(cursor.getColumnIndex("trans"));
String img = cursor.getString(cursor.getColumnIndex("img"));
int id = cursor.getInt(cursor.getColumnIndex("id"));
Structure struct = new Structure(word, definition, trans, img, id);
struct.setWord(word);
struct.setDefinition(definition);
struct.setTrans(trans);
struct.setImg(img);
struct.setId(id);
favorite.add(struct);
}
}
private void selectList() {
database = SQLiteDatabase.openOrCreateDatabase(destPath + "/md_book.db",
null);
#SuppressLint("Recycle") Cursor cursor = database.rawQuery("SELECT * FROM main", null);
while (cursor.moveToNext()) {
String word = cursor.getString(cursor.getColumnIndex("word"));
String definition =
cursor.getString(cursor.getColumnIndex("definition"));
String trans = cursor.getString(cursor.getColumnIndex("trans"));
String img = cursor.getString(cursor.getColumnIndex("img"));
int id = cursor.getInt(cursor.getColumnIndex("id"));
Structure struct = new Structure(word, definition, trans, img, id);
struct.setWord(word);
struct.setDefinition(definition);
struct.setTrans(trans);
struct.setImg(img);
struct.setId(id);
list.add(struct);
}
}
}
Update 5 innerpage activity
package farmani.com.essentialwordsforielts.innerpage;
import android.annotation.SuppressLint;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toolbar;
import java.lang.reflect.Field;
import farmani.com.essentialwordsforielts.R;
import farmani.com.essentialwordsforielts.mainPage.AdapterFav;
public class ActivityInnerPage extends AppCompatActivity {
private TextView contentDescriptione;
private TextView moreDescriptione;
private ImageView avatar;
private ImageView imgCopy;
private ImageView imgShare;
private ImageView imgSms;
private ImageView imgGmail;
private FloatingActionButton favorite;
private CollapsingToolbarLayout collapsingToolbarLayout;
public String word;
public String definition;
public String trans;
public String img;
public int id;
private String destpath;
private SQLiteDatabase database;
private String favoriteState;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_inner_page);
final android.support.v7.widget.Toolbar toolbar = findViewById(R.id.toolbar);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(),MainActivity.class);
startActivity(i);
finish();
}
});
Bundle extras = getIntent().getExtras();
if (extras != null) {
int layoutId = Integer.parseInt(extras.getString("id"));
String pageName = extras.getString("name");
assert pageName != null;
if (pageName.equals("list")) {
id = MainActivity.list.get(layoutId).getId();
word = MainActivity.list.get(layoutId).getWord();
definition = MainActivity.list.get(layoutId).getDefinition();
trans = MainActivity.list.get(layoutId).getTrans();
img = MainActivity.list.get(layoutId).getImg();
} else if (pageName.equals("favorite")) {
id = MainActivity.favorite.get(layoutId).getId();
word = MainActivity.favorite.get(layoutId).getWord();
definition = MainActivity.favorite.get(layoutId).getDefinition();
trans = MainActivity.favorite.get(layoutId).getTrans();
img = MainActivity.favorite.get(layoutId).getImg();
}
}
contentDescriptione = findViewById(R.id.content_description);
moreDescriptione = findViewById(R.id.more_description);
imgCopy = findViewById(R.id.img_copy);
imgShare = findViewById(R.id.img_share);
imgSms = findViewById(R.id.img_sms);
imgGmail = findViewById(R.id.img_gmail);
avatar = findViewById(R.id.avatar);
favorite = findViewById(R.id.favorite);
collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
collapsingToolbarLayout.getExpandedTitleMarginStart();
collapsingToolbarLayout.setTitle(word);
collapsingToolbarLayout.setExpandedTitleColor(getResources().getColor(android.R.color.holo_red_light));
contentDescriptione.setText(definition);
moreDescriptione.setText(trans);
int imgageId = MainActivity.context.getResources().getIdentifier(img, "drawable", MainActivity.context.getPackageName());
avatar.setImageResource(imgageId);
SharedPreferences prefes = getSharedPreferences("font_size", MODE_PRIVATE);
int value = prefes.getInt("fontsize", 16);
contentDescriptione.setTextSize(value);
moreDescriptione.setTextSize(value);
selectDb();
if(selectFavoriteState()){
favorite.setImageResource(R.drawable.ic_favorite_like);
}else {
favorite.setImageResource(R.drawable.ic_favorite_maylike);
}
favorite.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (selectFavoriteState()){
favorite.setImageResource(R.drawable.ic_favorite_maylike);
updateUnfavorited();
}else {
favorite.setImageResource(R.drawable.ic_favorite_like);
updateFavorited();
}
}
});
imgCopy.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final ClipboardManager clipboardManager =
(ClipboardManager)ActivityInnerPage.this.getSystemService(Context.CLIPBOARD_SERVICE);
final ClipData clip = ClipData.newPlainText(word, trans+definition);
assert clipboardManager != null;
clipboardManager.setPrimaryClip(clip);
Snackbar.make(view,"متن کپی شد ",Snackbar.LENGTH_SHORT).show();
}
});
imgShare.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_TEXT, definition+trans);
shareIntent.putExtra(Intent.EXTRA_SUBJECT, word);
startActivity(Intent.createChooser(shareIntent, "Share"));
}
});
imgGmail.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try {
Intent emailIntent = new Intent(Intent.ACTION_SENDTO
, Uri.fromParts("mailto", "", null));
emailIntent.putExtra(Intent.EXTRA_SUBJECT, word);
emailIntent.putExtra(Intent.EXTRA_TEXT, definition);
startActivity(Intent.createChooser(emailIntent, "Send email..."));
}catch (Exception e){
Snackbar.make(view,"برنامه ای برای ارسال ایمیل یافت نشد",Snackbar.LENGTH_SHORT).show();
}
}
});
imgSms.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try {
Intent sendSms = new Intent(Intent.ACTION_VIEW);
sendSms.putExtra("sms_body", definition + trans);
sendSms.setType("vnd.android-dir/mms-sms");
startActivity(sendSms);
}catch (Exception e){
Snackbar.make(view,"برنامه ای برای ارسال پیام یافت نشد",Snackbar.LENGTH_SHORT).show();
}
}
});
}
private void selectDb(){
destpath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/ielts/";
database = SQLiteDatabase.openOrCreateDatabase(destpath + "/md_book.db", null);
}
private boolean selectFavoriteState(){
#SuppressLint("Recycle") Cursor cursor = database.rawQuery("SELECT * FROM main WHERE id = " + id, null);
while (cursor.moveToNext()){
favoriteState = cursor.getString(cursor.getColumnIndex("fav"));
}
return favoriteState.equals("1");
}
private void updateFavorited(){
database.execSQL( "UPDATE main SET fav = 1 WHERE id = " + id);
}
private void updateUnfavorited(){
database.execSQL( "UPDATE main SET fav = 0 WHERE id = " + id);
}
}
In your FloatingActionButton onClick method after you save the new item in your database, insert your new item into your recyclerview datasource list and call notifyDatasetChanged() on the adapter.
Choice 1: in onResume() stub of MainActivity, call selectList() and selectFavorite() and then load the PageFragment again so that the new list is loaded properly.
This is the shortest wayout but this approach is very much unoptimized and is not recommended.
Choice 2: You will have to insert the new item in database as well as add it to the List and then call notifyDatasetChanged
In MainActivity within methods selectList() and selectFavorite() after you perform list.add(struct) and favourite.add(struct) respectively, you will have to call notifyDatasetChanged() for the Adapter.
But the problem is your RecyclerView is in the PageFragment whereas you're populating the list in MainActivity.
So move your selectList() and selectFavorite() to PageFragment where you first initialize the RecylerView then, set the Adapter and then populate the list and finally call notifyDatasetChanged() on your adapters.