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at this time i need help from u guys, i have this following code, but when i run in eclipse, it's totally eror,(THE ERROR IS SIGN IN THE CODE BELOW)
package com.example.search;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TextView;
import com.example.database.search.DBDataSource;
import com.example.database.search.Sma;
public class EditData extends Activity implements OnClickListener
{
int hour, minute, mYear,mMonth, mDay;
static final int DATE_DIALOG_ID = 1;
private EditText txtDate;
private String[] arrMonth{"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
private DBDataSource dataSource;
private long id;
private String Nama;
private String Alamat;
private Long Latitude;
private Long Longtitude;
private String Tanggal;
private String Email;
private String Website;
private String Facebook;
private String Twtitter;
private EditText edNama_sma, edAlamat_sma, edLatitude, edLongtitude, edTanggal, edEmail, edWebsite, edFacebook, edTwitter;
private TextView txId;
private Button btnSave;
private Button btnCancel;
private Sma sma;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.edit_data);
//inisialisasi variabel
edNama_sma = (EditText) findViewById(R.id.editText_nama);
edAlamat_sma = (EditText) findViewById(R.id.editText_alamat);
edLatitude = (EditText) findViewById(R.id.editText_latitude);
edLongtitude = (EditText) findViewById(R.id.editText_longtitude);
edTanggal = (EditText) findViewById(R.id.editText_Tanggal);
edEmail = (EditText) findViewById(R.id.editText_Email);
edWebsite = (EditText) findViewById(R.id.editText_Website);
edFacebook = (EditText) findViewById(R.id.editText_Facebook);
edTwitter = (EditText) findViewById(R.id.editText_Twitter);
txId = (TextView) findViewById(R.id.text_id_barang);
// get the current date
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);
//WHEN I ADD THIS CODE BELOW, then >> ERROR is happend >> java.lang.NullPointerExceptions
//THIS FUNCTION IS USE FOR SHOWING DATETIMEPICKER
txtDate.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
showDialog(DATE_DIALOG_ID);
return true;
}
});
//UNTIL THIS LINE
dataSource = new DBDataSource(this);
dataSource.open();
// ambil data sma dari extras
Bundle bun = this.getIntent().getExtras();
id = bun.getLong("id");
Nama = bun.getString("Nama");
Alamat = bun.getString("Alamat");
Latitude = bun.getLong("Latitude");
Longtitude = bun.getLong("Longtitude");
Tanggal = bun.getString("Tanggal");
Email = bun.getString("Email");
Website = bun.getString("Website");
Facebook = bun.getString("Facebook");
Twtitter = bun.getString("Twitter");
txId.append(String.valueOf(id));
edNama_sma.setText(Nama);
edAlamat_sma.setText(Alamat);
edLatitude.setText(Latitude.toString());
edLongtitude.setText(Longtitude.toString());
edTanggal.setText(Tanggal);
edEmail.setText(Email);
edWebsite.setText(Website);
edFacebook.setText(Facebook);
edTwitter.setText(Twtitter);
//set listener pada tombol
btnSave = (Button) findViewById(R.id.button_save_update);
btnSave.setOnClickListener(this);
btnCancel = (Button) findViewById(R.id.button_cancel_update);
btnCancel.setOnClickListener(this);
}
#Override
protected Dialog onCreateDialog(int id)
{
switch (id)
{
case DATE_DIALOG_ID:
return new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay);
}
return null;
}
private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener()
{
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth)
{
mYear = year;
mMonth = monthOfYear;
mDay = dayOfMonth;
String sdate = arrMonth[mMonth] + " " + LPad(mDay + "", "0", 2) + ", " + mYear;
txtDate.setText(sdate);
}
};
private static String LPad(String schar, String spad, int len)
{
String sret = schar;
for (int i = sret.length(); i < len; i++)
{
sret = spad + sret;
}
return new String(sret);
}
#Override
public void onClick(View v)
{
// TODO Auto-generated method stub
switch(v.getId())
{
// apabila tombol save diklik (update barang)
case R.id.button_save_update :
String ltd = edLatitude.getText().toString();
String lotd = edLongtitude.getText().toString();
Long latitude = Long.parseLong(ltd);
Long longtitude = Long.parseLong(lotd);
sma = new Sma();
sma.setNama(edNama_sma.getText().toString());
sma.setAlamat(edAlamat_sma.getText().toString());
sma.setLatitude(latitude);
sma.setLongitude(longtitude);
sma.setEmail(edEmail.getText().toString());
sma.setTgl_berdiri(edTanggal.getText().toString());
sma.setWebsite(edWebsite.getText().toString());
sma.setFacebook(edFacebook.getText().toString());
sma.setTwitter(edTwitter.getText().toString());
sma.setId(id);
dataSource.updateBarang(sma);
Intent i = new Intent(this, ViewData.class);
startActivity(i);
EditData.this.finish();
dataSource.close();
break;
case R.id.button_cancel_update :
finish();
dataSource.close();
break;
}
}
}
Anyone please help me from this error, i really want to say thank you to all of u who can resolve this code, Thanks :D
You haven't initialized the txtDate EtidText.
txtDate = (EditText) findViewById(R.id.txtDate);// or what ever you add the id for txtDate
Then you will be fine.
Related
My app getting crash when I try to set the time more than the current time.
Please solve my problem.
The current time is working fine but the app is crashing when I select time more than current time.
Thanks
JavaFile:
package com.example.akshay.eventmanager;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.hardware.input.InputManager;
import android.os.Bundle;
import android.text.InputType;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.TimePicker;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.widget.Toast;
import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
import com.google.android.gms.common.GooglePlayServicesRepairableException;
import com.google.android.gms.location.places.Place;
import com.google.android.gms.location.places.ui.PlacePicker;
import com.google.android.gms.maps.model.LatLng;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;
import android.app.DatePickerDialog.OnDateSetListener;
/**
* Created by Akshay on 7/12/2015.
*/
public class Create extends Activity implements View.OnClickListener {
Button select, create;
EditText title, desc, time;
TextView venueInfo;
PlacePicker.IntentBuilder intentBuilder;
private static final int PLACE_PICKER_REQUEST = 1;
public LatLng gotLatLng;
String placeName;
String plName;
String Addr;
Double gotLat, gotLong;
String LAT, LONG;
DataBaseHelper myDB;
public static final String LOG_TAG = "Create";
String GotTime = " ";
String GotDate = " ";
DatePickerDialog datePicker;
TimePickerDialog myTimePicker;
SimpleDateFormat dateFormatter;
SimpleDateFormat TimeFormatter;
static boolean flag = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create);
dateFormatter = new SimpleDateFormat("EEEE dd" ,Locale.US);
showDate();
showTime();
casting();
}
public void casting() {
select = (Button) findViewById(R.id.bSelect);
create = (Button) findViewById(R.id.bCreate);
title = (EditText) findViewById(R.id.etTitle);
desc = (EditText) findViewById(R.id.etDescription);
time = (EditText) findViewById(R.id.etTime);
venueInfo = (TextView) findViewById(R.id.tVVenue);
time.setInputType(InputType.TYPE_NULL);
select.setOnClickListener(this);
create.setOnClickListener(this);
time.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId())
{
case R.id.bSelect:
try {
intentBuilder = new PlacePicker.IntentBuilder();
Intent intent = intentBuilder.build(Create.this);
startActivityForResult(intent, PLACE_PICKER_REQUEST);
} catch (GooglePlayServicesRepairableException e) {
e.printStackTrace();
} catch (GooglePlayServicesNotAvailableException e) {
Toast.makeText(Create.this, "Google Play Services is not available.",
Toast.LENGTH_LONG)
.show();
}
break;
case R.id.bCreate:
String TITLE = title.getText().toString();
String DESC = desc.getText().toString();
String eventTime = time.getText().toString();
String PLACE = venueInfo.getText().toString();
myDB = new DataBaseHelper(this);
Log.e(LOG_TAG, TITLE);
Log.e(LOG_TAG, DESC);
Log.e(LOG_TAG, PLACE);
Log.e(LOG_TAG, LAT);
Log.e(LOG_TAG, LONG);
Log.e(LOG_TAG, Addr);
Log.e(LOG_TAG, eventTime);
int flag = myDB.InsertValues(TITLE, DESC, PLACE, LAT, LONG, Addr, eventTime);
if (flag == 1) {
Toast.makeText(Create.this, "Sucess", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(Create.this, "Error Adding Records", Toast.LENGTH_LONG).show();
}
break;
case R.id.etTime:
myTimePicker.show();
datePicker.show();
break;
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PLACE_PICKER_REQUEST) {
if (resultCode == RESULT_OK) {
Place place = PlacePicker.getPlace(data, this);
gotLatLng = place.getLatLng();
plName = (String) place.getName();
Addr = (String) place.getAddress();
gotLat = gotLatLng.latitude;
gotLong = gotLatLng.longitude;
LAT = String.valueOf(gotLat);
LONG = String.valueOf(gotLong);
placeName = String.format("Place: %s", place.getName());
Toast.makeText(this, placeName, Toast.LENGTH_LONG).show();
venueInfo.setText(plName);
}
}
}
public void showDate() {
Calendar cal = Calendar.getInstance();
datePicker = new DatePickerDialog(this, new OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth ) {
Calendar newDate = Calendar.getInstance();
newDate.set(year, monthOfYear, dayOfMonth);
GotDate = dateFormatter.format(newDate.getTime()).toString();
}
}, cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_WEEK));
flag =true;
}
public void showTime() {
if(flag == true) {
Calendar calender = Calendar.getInstance();
myTimePicker = new TimePickerDialog(this, new OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
Calendar newTime = Calendar.getInstance();
newTime.set(hourOfDay, minute);
GotTime = GotDate + " At " + String.valueOf(hourOfDay) + " :" + String.valueOf(minute + 1);
time.setText(GotTime);
}
}, calender.get((Calendar.HOUR_OF_DAY)), calender.get(Calendar.MINUTE), true);
}
}
}
LogCat:
07-13 16:43:10.468 478-478/com.example.akshay.eventmanager E/Zygote﹕ MountEmulatedStorage()
07-13 16:43:10.468 478-478/com.example.akshay.eventmanager E/Zygote﹕ v2
07-13 16:43:10.468 478-478/com.example.akshay.eventmanager E/SELinux﹕ [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
07-13 16:43:29.338 478-478/com.example.akshay.eventmanager E/ViewRootImpl﹕ sendUserActionEvent() mView == null
07-13 16:43:31.088 478-478/com.example.akshay.eventmanager E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.akshay.eventmanager, PID: 478
java.lang.ArrayIndexOutOfBoundsException: length=17; index=17
at java.util.Calendar.set(Calendar.java:1122)
at com.example.akshay.eventmanager.Create$2.onTimeSet(Create.java:196)
at android.app.TimePickerDialog.onClick(TimePickerDialog.java:204)
at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:162)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5972)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Set the time in calendar in showTime() method as follows:
public void showTime() {
if(flag == true) {
Calendar calender = Calendar.getInstance();
myTimePicker = new TimePickerDialog(this, new OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
Calendar newTime = Calendar.getInstance();
//newTime.set(hourOfDay, minute); // remove this line
//Add these two line
newTime.set(Calendar.HOUR_OF_DAY, hourOfDay);
newTime.set(Calendar.MINUTE, minute);
GotTime = GotDate + " At " + String.valueOf(hourOfDay) + " :" + String.valueOf(minute + 1);
time.setText(GotTime);
}
}, calender.get((Calendar.HOUR_OF_DAY)), calender.get(Calendar.MINUTE), true);
}
}
EDIT:
To get HourOdDay in am/pm you can do something like this:
String format = "hh:mm a"; // your own format
SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.US);
String formated_time = sdf.format(newTime.getTime());
//formated_time would show you time like "hh:mm am/pm".
Here this is my code. It looks a bit complicated but it's working all fine. I just want to know how can I create when I click btnCreateProduct it should validate required edit text field and where to add those code?
package com.prinsapps.whatson;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.util.Log;
import android.widget.Button;
import android.view.View.OnClickListener;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ImageButton;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import com.prinsapps.whatson.Addevent.CreateNewProduct;
public class Addevent extends Activity implements OnClickListener {
private ImageButton ib;
private Calendar cal;
private int day;
private int month;
private int year;
private EditText et;
//Progress Dialog
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
EditText inputName;
EditText inputDesc;
EditText inputCountry;
EditText inputdate;
EditText inputLink;
EditText inputOrg;
// url to create new product
private static String url_create_product = "http://-----------";
// JSON Node names
private static final String TAG_SUCCESS = "success";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_event);
//Edit Text
inputName = (EditText) findViewById(R.id.inputName);
inputDesc = (EditText) findViewById(R.id.inputDesc);
inputCountry = (EditText) findViewById(R.id.inputCountry);
inputdate = (EditText) findViewById(R.id.inputdate);
inputLink = (EditText) findViewById(R.id.inputLink);
inputOrg = (EditText) findViewById(R.id.inputOrg);
// mDateButton = (Button) findViewById(R.id.date_button);
ib = (ImageButton) findViewById(R.id.imageButton1);
cal = Calendar.getInstance();
day = cal.get(Calendar.DAY_OF_MONTH);
month = cal.get(Calendar.MONTH);
year = cal.get(Calendar.YEAR);
et = (EditText) findViewById(R.id.inputdate);
ib.setOnClickListener(this);
// Create button
Button btnCreateProduct = (Button)
findViewById(R.id.btnCreateProduct);
// button click event
btnCreateProduct.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// creating new product in background thread
new CreateNewProduct().execute();
}
});
}
#Override
public void onClick(View v) {
showDialog(0);
}
#Override
#Deprecated
protected Dialog onCreateDialog(int id) {
return new DatePickerDialog(this, datePickerListener, year, month, day);
}
private DatePickerDialog.OnDateSetListener datePickerListener = new
DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
et.setText(selectedYear+"/"+(selectedMonth+1)+"/"+selectedDay);
}
};
/**
* Background Async Task to Create new product
* */
class CreateNewProduct extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Addevent.this);
pDialog.setMessage("Creating Product..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Creating product
*
* */
protected String doInBackground(String... args) {
String name = inputName.getText().toString();
String description = inputDesc.getText().toString();
String country = inputCountry.getText().toString();
String date = inputdate.getText().toString();
String link = inputLink.getText().toString();
String org = inputOrg.getText().toString();
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", name));
params.add(new BasicNameValuePair("description", description));
params.add(new BasicNameValuePair("country", country));
params.add(new BasicNameValuePair("date", date));
params.add(new BasicNameValuePair("link", link));
params.add(new BasicNameValuePair("org", org));
// getting JSON Object
// Note that create product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest(url_create_product,
"POST", params);
// check log cat fro response
Log.d("Create Response", json.toString());
// check for success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully created product
Intent i = new Intent(getApplicationContext(),
AllProductsActivity.class);
startActivity(i);
// closing this screen
finish();
} else {
// failed to create product
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once done
pDialog.dismiss();
}
}
}
use editText watcher
editText.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
}
#Override
public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
}
#Override
public void afterTextChanged(Editable editable) {
//Add your validations here
}
});
Yes it working fine now
#Override
public void onClick(View view) {
if ( ( !inputName.getText().toString().equals("")) &&
( !inputDesc.getText().toString().equals("")) &&
( !inputCountry.getText().toString().equals("")) &&
( !inputdate.getText().toString().equals(""))
)
{
// creating new product in background thread
new CreateNewProduct().execute();
}
else if ( ( !inputName.getText().toString().equals("")) )
{
Toast.makeText(getApplicationContext(),
"Please Enter Event Name", Toast.LENGTH_SHORT).show();
}
else if ( ( !inputDesc.getText().toString().equals("")) )
{
Toast.makeText(getApplicationContext(),
"Please Enter Event Description", Toast.LENGTH_SHORT).show();
}
else if ( ( !inputCountry.getText().toString().equals("")) )
{
Toast.makeText(getApplicationContext(),
"Please Enter Place or Country", Toast.LENGTH_SHORT).show();
}
else if ( ( !inputdate.getText().toString().equals("")) )
{
Toast.makeText(getApplicationContext(),
"Please Select Date When Event Start", Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(getApplicationContext(),
"Event Details are empty", Toast.LENGTH_SHORT).show();
}
}
});
}
As I'm assuming, that you don't want to get empty your Textfield empty if you creating a product, I'd suggest to check wether the Strings of your EditTexts are null or empty.
This could look like this:
if(inputName.getText().equals("") || inputName.getText().equals(null)){
//Maybe show some message, that the given field ist required to be filled out
}
I would suggest to add this into your onClick() Method, or write an extra method to check wether an EditText is empty and return a boolean value. This could look like this:
public boolean notEmpty(EditText et){
if(et.getText().equals("") || et.getText().equals(null)){
return false;
}
return true;
}
And then check this for every EditText et before you create a new product.
This is what I found in the LogCat:
02-26 05:10:44.943: E/AndroidRuntime(844): FATAL EXCEPTION: main
02-26 05:10:44.943: E/AndroidRuntime(844): java.lang.RuntimeException: Unable to start activity ComponentInfo{course.labs.todomanager/course.labs.todomanager.ToDoManagerActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f060013 type #0x12 is not valid
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread.access$600(ActivityThread.java:141)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.os.Handler.dispatchMessage(Handler.java:99)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.os.Looper.loop(Looper.java:137)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread.main(ActivityThread.java:5103)
02-26 05:10:44.943: E/AndroidRuntime(844): at java.lang.reflect.Method.invokeNative(Native Method)
02-26 05:10:44.943: E/AndroidRuntime(844): at java.lang.reflect.Method.invoke(Method.java:525)
02-26 05:10:44.943: E/AndroidRuntime(844): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
02-26 05:10:44.943: E/AndroidRuntime(844): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-26 05:10:44.943: E/AndroidRuntime(844): at dalvik.system.NativeStart.main(Native Method)
02-26 05:10:44.943: E/AndroidRuntime(844): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f060013 type #0x12 is not valid
02-26 05:10:44.943: E/AndroidRuntime(844): at android.content.res.Resources.loadXmlResourceParser(Resources.java:2309)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.content.res.Resources.getLayout(Resources.java:934)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
02-26 05:10:44.943: E/AndroidRuntime(844): at course.labs.todomanager.ToDoManagerActivity.onCreate(ToDoManagerActivity.java:56)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.Activity.performCreate(Activity.java:5133)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
02-26 05:10:44.943: E/AndroidRuntime(844): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
02-26 05:10:44.943: E/AndroidRuntime(844): ... 11 more
The Applicaion is a to-do app and it has 4 activities as follows:
1- ToDoManagerActivity
package course.labs.todomanager;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.text.ParseException;
import java.util.Date;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ListView;
import android.widget.TextView;
import course.labs.todomanager.ToDoItem.Priority;
import course.labs.todomanager.ToDoItem.Status;
public class ToDoManagerActivity extends ListActivity {
// Add a ToDoItem Request Code
private static final int ADD_TODO_ITEM_REQUEST = 0;
private static final String FILE_NAME = "TodoManagerActivityData.txt";
private static final String TAG = "Lab-UserInterface";
// IDs for menu items
private static final int MENU_DELETE = Menu.FIRST;
private static final int MENU_DUMP = Menu.FIRST + 1;
ToDoListAdapter mAdapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Create a new TodoListAdapter for this ListActivity's ListView
mAdapter = new ToDoListAdapter(getApplicationContext());
// Put divider between ToDoItems and FooterView
getListView().setFooterDividersEnabled(true);
//TODO - Inflate footerView for footer_view.xml file
TextView footerView = (TextView) findViewById(R.id.footerView);
LayoutInflater li = getLayoutInflater();
li.inflate(R.id.footerView, getListView());
//TODO - Add footerView to ListView
ListView lv = getListView();
lv.addFooterView(footerView);
footerView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered footerView.OnClickListener.onClick()");
//TODO - Attach Listener to FooterView. Implement onClick().
Intent intent = new Intent(ToDoManagerActivity.this, AddToDoActivity.class);
startActivityForResult(intent, ADD_TODO_ITEM_REQUEST);
}
});
//TODO - Attach the adapter to this ListActivity's ListView
lv.setAdapter(mAdapter);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
log("Entered onActivityResult()");
// TODO - Check result code and request code.
// If user submitted a new ToDoItem
// Create a new ToDoItem from the data Intent
// and then add it to the adapter
if (requestCode == ADD_TODO_ITEM_REQUEST && resultCode == RESULT_OK)
{
ToDoItem toDoItem = new ToDoItem(data);
mAdapter.add(toDoItem);
}
}
// Do not modify below here
#Override
public void onResume() {
super.onResume();
// Load saved ToDoItems, if necessary
if (mAdapter.getCount() == 0)
loadItems();
}
#Override
protected void onPause() {
super.onPause();
// Save ToDoItems
saveItems();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(Menu.NONE, MENU_DELETE, Menu.NONE, "Delete all");
menu.add(Menu.NONE, MENU_DUMP, Menu.NONE, "Dump to log");
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_DELETE:
mAdapter.clear();
return true;
case MENU_DUMP:
dump();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void dump() {
for (int i = 0; i < mAdapter.getCount(); i++) {
String data = ((ToDoItem) mAdapter.getItem(i)).toLog();
log("Item " + i + ": " + data.replace(ToDoItem.ITEM_SEP, ","));
}
}
// Load stored ToDoItems
private void loadItems() {
BufferedReader reader = null;
try {
FileInputStream fis = openFileInput(FILE_NAME);
reader = new BufferedReader(new InputStreamReader(fis));
String title = null;
String priority = null;
String status = null;
Date date = null;
while (null != (title = reader.readLine())) {
priority = reader.readLine();
status = reader.readLine();
date = ToDoItem.FORMAT.parse(reader.readLine());
mAdapter.add(new ToDoItem(title, Priority.valueOf(priority),
Status.valueOf(status), date));
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
} finally {
if (null != reader) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
// Save ToDoItems to file
private void saveItems() {
PrintWriter writer = null;
try {
FileOutputStream fos = openFileOutput(FILE_NAME, MODE_PRIVATE);
writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
fos)));
for (int idx = 0; idx < mAdapter.getCount(); idx++) {
writer.println(mAdapter.getItem(idx));
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (null != writer) {
writer.close();
}
}
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
2- ToDoListAdapter:
package course.labs.todomanager;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RelativeLayout;
import android.widget.TextView;
import course.labs.todomanager.ToDoItem.Status;
public class ToDoListAdapter extends BaseAdapter {
// List of ToDoItems
private final List<ToDoItem> mItems = new ArrayList<ToDoItem>();
private final Context mContext;
private static final String TAG = "Lab-UserInterface";
public ToDoListAdapter(Context context) {
mContext = context;
}
// Add a ToDoItem to the adapter
// Notify observers that the data set has changed
public void add(ToDoItem item) {
mItems.add(item);
notifyDataSetChanged();
}
// Clears the list adapter of all items.
public void clear(){
mItems.clear();
notifyDataSetChanged();
}
// Returns the number of ToDoItems
#Override
public int getCount() {
return mItems.size();
}
// Retrieve the number of ToDoItems
#Override
public Object getItem(int pos) {
return mItems.get(pos);
}
// Get the ID for the ToDoItem
// In this case it's just the position
#Override
public long getItemId(int pos) {
return pos;
}
//Create a View to display the ToDoItem
// at specified position in mItems
#Override
public View getView(int position, View convertView, ViewGroup parent) {
//TODO - Get the current ToDoItem
final ToDoItem toDoItem = (ToDoItem) getItem(position);
//TODO - Inflate the View for this ToDoItem
// from todo_item.xml.
RelativeLayout itemLayout = (RelativeLayout) View.inflate(mContext, R.layout.todo_item, parent);
//TODO - Fill in specific ToDoItem data
// Remember that the data that goes in this View
// corresponds to the user interface elements defined
// in the layout file
//TODO - Display Title in TextView
final TextView titleView = (TextView) convertView.findViewById(R.id.titleView);
titleView.setText(toDoItem.getTitle());
// TODO - Set up Status CheckBox
final CheckBox statusView = (CheckBox) convertView.findViewById(R.id.statusCheckBox);
statusView.setOnCheckedChangeListener(new OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
log("Entered onCheckedChanged()");
// TODO - Set up and implement an OnCheckedChangeListener, which
// is called when the user toggles the status checkbox
if(isChecked)
{
toDoItem.setStatus(Status.DONE);
}
else
{
toDoItem.setStatus(Status.NOTDONE);
}
}
});
//TODO - Display Priority in a TextView
final TextView priorityView = (TextView) convertView.findViewById(R.id.priorityView);
priorityView.setTag(toDoItem.getPriority());
// TODO - Display Time and Date.
// Hint - use ToDoItem.FORMAT.format(toDoItem.getDate()) to get date and time String
final TextView dateView = (TextView) convertView.findViewById(R.id.dateView);
dateView.setText(ToDoItem.FORMAT.format(toDoItem.getDate()));
// Return the View you just created
return itemLayout;
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
3- AddToDoActivity
package course.labs.todomanager;
import java.util.Calendar;
import java.util.Date;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.TimePicker;
import course.labs.todomanager.ToDoItem.Priority;
import course.labs.todomanager.ToDoItem.Status;
public class AddToDoActivity extends Activity {
// 7 days in milliseconds - 7 * 24 * 60 * 60 * 1000
private static final int SEVEN_DAYS = 604800000;
private static final String TAG = "Lab-UserInterface";
private static String timeString;
private static String dateString;
private static TextView dateView;
private static TextView timeView;
private Date mDate;
private RadioGroup mPriorityRadioGroup;
private RadioGroup mStatusRadioGroup;
private EditText mTitleText;
private RadioButton mDefaultStatusButton;
private RadioButton mDefaultPriorityButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_todo);
mTitleText = (EditText) findViewById(R.id.title);
mDefaultStatusButton = (RadioButton) findViewById(R.id.statusNotDone);
mDefaultPriorityButton = (RadioButton) findViewById(R.id.medPriority);
mPriorityRadioGroup = (RadioGroup) findViewById(R.id.priorityGroup);
mStatusRadioGroup = (RadioGroup) findViewById(R.id.statusGroup);
dateView = (TextView) findViewById(R.id.date);
timeView = (TextView) findViewById(R.id.time);
// Set the default date and time
setDefaultDateTime();
// OnClickListener for the Date button, calls showDatePickerDialog() to show
// the Date dialog
final Button datePickerButton = (Button) findViewById(R.id.date_picker_button);
datePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showDatePickerDialog();
}
});
// OnClickListener for the Time button, calls showTimePickerDialog() to show
// the Time Dialog
final Button timePickerButton = (Button) findViewById(R.id.time_picker_button);
timePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showTimePickerDialog();
}
});
// OnClickListener for the Cancel Button,
final Button cancelButton = (Button) findViewById(R.id.cancelButton);
cancelButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered cancelButton.OnClickListener.onClick()");
//TODO - Implement onClick().
setResult(RESULT_CANCELED);
finish();
}
});
//OnClickListener for the Reset Button
final Button resetButton = (Button) findViewById(R.id.resetButton);
resetButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered resetButton.OnClickListener.onClick()");
//TODO - Reset data fields to default values
mTitleText.setText(R.id.title);
mPriorityRadioGroup = (RadioGroup) findViewById(R.id.priorityGroup);
mStatusRadioGroup = (RadioGroup) findViewById(R.id.statusGroup);
setDefaultDateTime();
}
});
// OnClickListener for the Submit Button
// Implement onClick().
final Button submitButton = (Button) findViewById(R.id.submitButton);
submitButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered submitButton.OnClickListener.onClick()");
// Gather ToDoItem data
//TODO - Get Priority
Priority priority = getPriority();
//TODO - Get Status
Status status = getStatus();
//TODO - Title
String titleString = mTitleText.getPrivateImeOptions();
// Date
String fullDate = dateString + " " + timeString;
// Package ToDoItem data into an Intent
Intent data = new Intent();
ToDoItem.packageIntent(data, titleString, priority, status, fullDate);
//TODO - return data Intent and finish
setResult(RESULT_OK);
finish();
}
});
}
// Do not modify below here
// Use this method to set the default date and time
private void setDefaultDateTime() {
// Default is current time + 7 days
mDate = new Date();
mDate = new Date(mDate.getTime() + SEVEN_DAYS);
Calendar c = Calendar.getInstance();
c.setTime(mDate);
setDateString(c.get(Calendar.YEAR), c.get(Calendar.MONTH),
c.get(Calendar.DAY_OF_MONTH));
dateView.setText(dateString);
setTimeString(c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE),
c.get(Calendar.MILLISECOND));
timeView.setText(timeString);
}
private static void setDateString(int year, int monthOfYear, int dayOfMonth) {
// Increment monthOfYear for Calendar/Date -> Time Format setting
monthOfYear++;
String mon = "" + monthOfYear;
String day = "" + dayOfMonth;
if (monthOfYear < 10)
mon = "0" + monthOfYear;
if (dayOfMonth < 10)
day = "0" + dayOfMonth;
dateString = year + "-" + mon + "-" + day;
}
private static void setTimeString(int hourOfDay, int minute, int mili) {
String hour = "" + hourOfDay;
String min = "" + minute;
if (hourOfDay < 10)
hour = "0" + hourOfDay;
if (minute < 10)
min = "0" + minute;
timeString = hour + ":" + min + ":00";
}
private Priority getPriority() {
switch (mPriorityRadioGroup.getCheckedRadioButtonId()) {
case R.id.lowPriority: {
return Priority.LOW;
}
case R.id.highPriority: {
return Priority.HIGH;
}
default: {
return Priority.MED;
}
}
}
private Status getStatus() {
switch (mStatusRadioGroup.getCheckedRadioButtonId()) {
case R.id.statusDone: {
return Status.DONE;
}
default: {
return Status.NOTDONE;
}
}
}
// DialogFragment used to pick a ToDoItem deadline date
public static class DatePickerFragment extends DialogFragment implements
DatePickerDialog.OnDateSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
setDateString(year, monthOfYear, dayOfMonth);
dateView.setText(dateString);
}
}
// DialogFragment used to pick a ToDoItem deadline time
public static class TimePickerFragment extends DialogFragment implements
TimePickerDialog.OnTimeSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog and return
return new TimePickerDialog(getActivity(), this, hour, minute,
true);
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
setTimeString(hourOfDay, minute, 0);
timeView.setText(timeString);
}
}
private void showDatePickerDialog() {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "datePicker");
}
private void showTimePickerDialog() {
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getFragmentManager(), "timePicker");
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
4- ToDoItem
package course.labs.todomanager;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import android.content.Intent;
// Do not modify
public class ToDoItem {
public static final String ITEM_SEP = System.getProperty("line.separator");
public enum Priority {
LOW, MED, HIGH
};
public enum Status {
NOTDONE, DONE
};
public final static String TITLE = "title";
public final static String PRIORITY = "priority";
public final static String STATUS = "status";
public final static String DATE = "date";
public final static String FILENAME = "filename";
public final static SimpleDateFormat FORMAT = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss", Locale.US);
private String mTitle = new String();
private Priority mPriority = Priority.LOW;
private Status mStatus = Status.NOTDONE;
private Date mDate = new Date();
ToDoItem(String title, Priority priority, Status status, Date date) {
this.mTitle = title;
this.mPriority = priority;
this.mStatus = status;
this.mDate = date;
}
// Create a new ToDoItem from data packaged in an Intent
ToDoItem(Intent intent) {
mTitle = intent.getStringExtra(ToDoItem.TITLE);
mPriority = Priority.valueOf(intent.getStringExtra(ToDoItem.PRIORITY));
mStatus = Status.valueOf(intent.getStringExtra(ToDoItem.STATUS));
try {
mDate = ToDoItem.FORMAT.parse(intent.getStringExtra(ToDoItem.DATE));
} catch (ParseException e) {
mDate = new Date();
}
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
public Priority getPriority() {
return mPriority;
}
public void setPriority(Priority priority) {
mPriority = priority;
}
public Status getStatus() {
return mStatus;
}
public void setStatus(Status status) {
mStatus = status;
}
public Date getDate() {
return mDate;
}
public void setDate(Date date) {
mDate = date;
}
// Take a set of String data values and
// package them for transport in an Intent
public static void packageIntent(Intent intent, String title,
Priority priority, Status status, String date) {
intent.putExtra(ToDoItem.TITLE, title);
intent.putExtra(ToDoItem.PRIORITY, priority.toString());
intent.putExtra(ToDoItem.STATUS, status.toString());
intent.putExtra(ToDoItem.DATE, date);
}
public String toString() {
return mTitle + ITEM_SEP + mPriority + ITEM_SEP + mStatus + ITEM_SEP
+ FORMAT.format(mDate);
}
public String toLog() {
return "Title:" + mTitle + ITEM_SEP + "Priority:" + mPriority
+ ITEM_SEP + "Status:" + mStatus + ITEM_SEP + "Date:"
+ FORMAT.format(mDate);
}
}
Can anybody help?
li.inflate(R.id.footerView, getListView());
You cannot inflate ids, only layouts.
Replace R.id.footerView with R.layout.your_footer_view_layout.
Also, you probably want to capture the inflated View to some variable to actually use it later.
Try this:
//Inflate footerView for footer_view.xml file
TextView footerView = (TextView) getLayoutInflater().inflate(R.layout.footer_view, null);
You should replace setTag(). Change
priorityView.setTag(toDoItem.getPriority());
to
priorityView.setText(toDoItem.getPriority().ToString());
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 9 years ago.
Improve this question
I have a UI Lab for Android Programming that I'm trying to complete. I think I'm close, yet so far away. I have four activities that I'm working with but only three of them needed worked on. Here is what I have. I need help with what I'm missing.
Here's the first Activity which is AddToDoActivity
package course.labs.todomanager;
import java.util.Calendar;
import java.util.Date;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.TimePicker;
import course.labs.todomanager.ToDoItem.Priority;
import course.labs.todomanager.ToDoItem.Status;
public class AddToDoActivity extends Activity {
// 7 days in milliseconds - 7 * 24 * 60 * 60 * 1000
private static final int SEVEN_DAYS = 604800000;
private static final String TAG = "Lab-UserInterface";
private static String timeString;
private static String dateString;
private static TextView dateView;
private static TextView timeView;
private Date mDate;
private RadioGroup mPriorityRadioGroup;
private RadioGroup mStatusRadioGroup;
private EditText mTitleText;
private RadioButton mDefaultStatusButton;
private RadioButton mDefaultPriorityButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_todo);
mTitleText = (EditText) findViewById(R.id.title);
mDefaultStatusButton = (RadioButton) findViewById(R.id.statusNotDone);
mDefaultPriorityButton = (RadioButton) findViewById(R.id.medPriority);
mPriorityRadioGroup = (RadioGroup) findViewById(R.id.priorityGroup);
mStatusRadioGroup = (RadioGroup) findViewById(R.id.statusGroup);
dateView = (TextView) findViewById(R.id.date);
timeView = (TextView) findViewById(R.id.time);
// Set the default date and time
setDefaultDateTime();
// OnClickListener for the Date button, calls showDatePickerDialog() to show
// the Date dialog
final Button datePickerButton = (Button) findViewById(R.id.date_picker_button);
datePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showDatePickerDialog();
}
});
// OnClickListener for the Time button, calls showTimePickerDialog() to show
// the Time Dialog
final Button timePickerButton = (Button) findViewById(R.id.time_picker_button);
timePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showTimePickerDialog();
}
});
// OnClickListener for the Cancel Button,
final Button cancelButton = (Button) findViewById(R.id.cancelButton);
cancelButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered cancelButton.OnClickListener.onClick()");
//TODO - Implement onClick().
Intent intent = new Intent setResult;
finish();
}
});
//OnClickListener for the Reset Button
final Button resetButton = (Button) findViewById(R.id.resetButton);
resetButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered resetButton.OnClickListener.onClick()");
//TODO - Reset data fields to default values
setDefaultDateTime();
mTitleText.setText("");
mDefaultStatusButton.setChecked(true);
mDefaultPriorityButton.setChecked(true);
}
});
// OnClickListener for the Submit Button
// Implement onClick().
final Button submitButton = (Button) findViewById(R.id.submitButton);
submitButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered submitButton.OnClickListener.onClick()");
// Gather ToDoItem data
//TODO - Get Priority
Priority priority = getPriority();
//TODO - Get Status
Status status = getStatus();
//TODO - Title
String titleString = mTitleText.getText().toString();
// Date
String fullDate = dateString + " " + timeString;
// Package ToDoItem data into an Intent
Intent data = new Intent();
ToDoItem.packageIntent(data, titleString, priority, status, fullDate);
//TODO - return data Intent and finish
setResult(Activity.RESULT_OK, data);
finish();
}
});
}
// Do not modify below here
// Use this method to set the default date and time
private void setDefaultDateTime() {
// Default is current time + 7 days
mDate = new Date();
mDate = new Date(mDate.getTime() + SEVEN_DAYS);
Calendar c = Calendar.getInstance();
c.setTime(mDate);
setDateString(c.get(Calendar.YEAR), c.get(Calendar.MONTH),
c.get(Calendar.DAY_OF_MONTH));
dateView.setText(dateString);
setTimeString(c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE),
c.get(Calendar.MILLISECOND));
timeView.setText(timeString);
}
private static void setDateString(int year, int monthOfYear, int dayOfMonth) {
// Increment monthOfYear for Calendar/Date -> Time Format setting
monthOfYear++;
String mon = "" + monthOfYear;
String day = "" + dayOfMonth;
if (monthOfYear < 10)
mon = "0" + monthOfYear;
if (dayOfMonth < 10)
day = "0" + dayOfMonth;
dateString = year + "-" + mon + "-" + day;
}
private static void setTimeString(int hourOfDay, int minute, int mili) {
String hour = "" + hourOfDay;
String min = "" + minute;
if (hourOfDay < 10)
hour = "0" + hourOfDay;
if (minute < 10)
min = "0" + minute;
timeString = hour + ":" + min + ":00";
}
private Priority getPriority() {
switch (mPriorityRadioGroup.getCheckedRadioButtonId()) {
case R.id.lowPriority: {
return Priority.LOW;
}
case R.id.highPriority: {
return Priority.HIGH;
}
default: {
return Priority.MED;
}
}
}
private Status getStatus() {
switch (mStatusRadioGroup.getCheckedRadioButtonId()) {
case R.id.statusDone: {
return Status.DONE;
}
default: {
return Status.NOTDONE;
}
}
}
// DialogFragment used to pick a ToDoItem deadline date
public static class DatePickerFragment extends DialogFragment implements
DatePickerDialog.OnDateSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
setDateString(year, monthOfYear, dayOfMonth);
dateView.setText(dateString);
}
}
// DialogFragment used to pick a ToDoItem deadline time
public static class TimePickerFragment extends DialogFragment implements
TimePickerDialog.OnTimeSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog and return
return new TimePickerDialog(getActivity(), this, hour, minute,
true);
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
setTimeString(hourOfDay, minute, 0);
timeView.setText(timeString);
}
}
private void showDatePickerDialog() {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "datePicker");
}
private void showTimePickerDialog() {
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getFragmentManager(), "timePicker");
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
Here's the second activity which is ToDoItem
package course.labs.todomanager;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import android.content.Intent;
// Do not modify
public class ToDoItem {
public static final String ITEM_SEP = System.getProperty("line.separator");
public enum Priority {
LOW, MED, HIGH
};
public enum Status {
NOTDONE, DONE
};
public final static String TITLE = "title";
public final static String PRIORITY = "priority";
public final static String STATUS = "status";
public final static String DATE = "date";
public final static String FILENAME = "filename";
public final static SimpleDateFormat FORMAT = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss", Locale.US);
private String mTitle = new String();
private Priority mPriority = Priority.LOW;
private Status mStatus = Status.NOTDONE;
private Date mDate = new Date();
ToDoItem(String title, Priority priority, Status status, Date date) {
this.mTitle = title;
this.mPriority = priority;
this.mStatus = status;
this.mDate = date;
}
// Create a new ToDoItem from data packaged in an Intent
ToDoItem(Intent intent) {
mTitle = intent.getStringExtra(ToDoItem.TITLE);
mPriority = Priority.valueOf(intent.getStringExtra(ToDoItem.PRIORITY));
mStatus = Status.valueOf(intent.getStringExtra(ToDoItem.STATUS));
try {
mDate = ToDoItem.FORMAT.parse(intent.getStringExtra(ToDoItem.DATE));
} catch (ParseException e) {
mDate = new Date();
}
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
public Priority getPriority() {
return mPriority;
}
public void setPriority(Priority priority) {
mPriority = priority;
}
public Status getStatus() {
return mStatus;
}
public void setStatus(Status status) {
mStatus = status;
}
public Date getDate() {
return mDate;
}
public void setDate(Date date) {
mDate = date;
}
// Take a set of String data values and
// package them for transport in an Intent
public static void packageIntent(Intent intent, String title,
Priority priority, Status status, String date) {
intent.putExtra(ToDoItem.TITLE, title);
intent.putExtra(ToDoItem.PRIORITY, priority.toString());
intent.putExtra(ToDoItem.STATUS, status.toString());
intent.putExtra(ToDoItem.DATE, date);
}
public String toString() {
return mTitle + ITEM_SEP + mPriority + ITEM_SEP + mStatus + ITEM_SEP
+ FORMAT.format(mDate);
}
public String toLog() {
return "Title:" + mTitle + ITEM_SEP + "Priority:" + mPriority
+ ITEM_SEP + "Status:" + mStatus + ITEM_SEP + "Date:"
+ FORMAT.format(mDate);
}
}
Here's the third activity which is ToDoListAdapter
package course.labs.todomanager;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RelativeLayout;
import android.widget.TextView;
import course.labs.todomanager.ToDoItem.Status;
public class ToDoListAdapter extends BaseAdapter {
// List of ToDoItems
private final List<ToDoItem> mItems = new ArrayList<ToDoItem>();
private final Context mContext;
private static final String TAG = "Lab-UserInterface";
public ToDoListAdapter(Context context) {
mContext = context;
}
// Add a ToDoItem to the adapter
// Notify observers that the data set has changed
public void add(ToDoItem item) {
mItems.add(item);
notifyDataSetChanged();
}
// Clears the list adapter of all items.
public void clear(){
mItems.clear();
notifyDataSetChanged();
}
// Returns the number of ToDoItems
#Override
public int getCount() {
return mItems.size();
}
// Retrieve the number of ToDoItems
#Override
public Object getItem(int pos) {
return mItems.get(pos);
}
// Get the ID for the ToDoItem
// In this case it's just the position
#Override
public long getItemId(int pos) {
return pos;
}
//Create a View to display the ToDoItem
// at specified position in mItems
#Override
public View getView(int position, View convertView, ViewGroup parent) {
//TODO - Get the current ToDoItem
final ToDoItem toDoItem = getItemPos();
//TODO - Inflate the View for this ToDoItem
// from todo_item.xml.
LayoutInflater = itemLayout;
RelativeLayout itemLayout = m.context.getSystemService(R.layout.todo_item);
//TODO - Fill in specific ToDoItem data
// Remember that the data that goes in this View
// corresponds to the user interface elements defined
// in the layout file
//TODO - Display Title in TextView
final TextView titleView = ItemLayout.findViewById;
setTextView;
//TODO - Set up Status CheckBox
final CheckBox statusView = ItemLayout.findViewById(R.id.statusCheckBox);
statusView.setChecked(checked) statusDone;
statusView.setOnCheckedChangeListener(new OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
log("Entered onCheckedChanged()");
//TODO - Set up and implement an OnCheckedChangeListener, which
// is called when the user toggles the status checkbox
if isChecked ToDoItem.setStatus status.Done(true);
else
}
});
//TODO - Display Priority in a TextView
final TextView priorityView = findViewByID(R.id.PriorityView);
PriorityView.setToString();
//TODO - Display Time and Date.
// Hint - use ToDoItem.FORMAT.format(toDoItem.getDate()) to get date and time String
final TextView dateView = itemLayout.findViewById(R.id.dateView);
dateView.setText(ToDoItem.FORMAT);
// Return the View you just created
return itemLayout;
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
And here is the fourth activity which is ToDoManagerActivity
package course.labs.todomanager;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.text.ParseException;
import java.util.Date;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import course.labs.todomanager.ToDoItem.Priority;
import course.labs.todomanager.ToDoItem.Status;
public class ToDoManagerActivity extends ListActivity {
// Add a ToDoItem Request Code
private static final int ADD_TODO_ITEM_REQUEST = 0;
private static final String FILE_NAME = "TodoManagerActivityData.txt";
private static final String TAG = "Lab-UserInterface";
// IDs for menu items
private static final int MENU_DELETE = Menu.FIRST;
private static final int MENU_DUMP = Menu.FIRST + 1;
ToDoListAdapter mAdapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Create a new TodoListAdapter for this ListActivity's ListView
mAdapter = new ToDoListAdapter(getApplicationContext());
// Put divider between ToDoItems and FooterView
getListView().setFooterDividersEnabled(true);
//TODO - Inflate footerView for footer_view.xml file
TextView footerView = TextView().getLayoutInflater()
.inflate(R.layout.footer_view, null);
//TODO - Add footerView to ListView
getListView fv = (ListView)findViewById(R.layout.footer_view);
footerView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered footerView.OnClickListener.onClick()");
//TODO - Attach Listener to FooterView. Implement onClick().
Intent intent = new Intent(getBaseContext(), AddToDoActivity.class);
startActivityForResult(intent, ADD_TODO_ITEM_REQUEST);
}
});
//TODO - Attach the adapter to this ListActivity's ListView
getListView.footer_view.setAdapter(mAdapter, fv);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
log("Entered onActivityResult()");
// TODO - Check result code and request code.
// If user submitted a new ToDoItem
// Create a new ToDoItem from the data Intent
// and then add it to the adapter
if requestCode == ADD_TODO_ITEM_REQUEST {
also if resultCode != RESULT_OK(true);
new mAdapter++;
}
}
// Do not modify below here
#Override
public void onResume() {
super.onResume();
// Load saved ToDoItems, if necessary
if (mAdapter.getCount() == 0)
loadItems();
}
#Override
protected void onPause() {
super.onPause();
// Save ToDoItems
saveItems();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(Menu.NONE, MENU_DELETE, Menu.NONE, "Delete all");
menu.add(Menu.NONE, MENU_DUMP, Menu.NONE, "Dump to log");
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_DELETE:
mAdapter.clear();
return true;
case MENU_DUMP:
dump();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void dump() {
for (int i = 0; i < mAdapter.getCount(); i++) {
String data = ((ToDoItem) mAdapter.getItem(i)).toLog();
log("Item " + i + ": " + data.replace(ToDoItem.ITEM_SEP, ","));
}
}
// Load stored ToDoItems
private void loadItems() {
BufferedReader reader = null;
try {
FileInputStream fis = openFileInput(FILE_NAME);
reader = new BufferedReader(new InputStreamReader(fis));
String title = null;
String priority = null;
String status = null;
Date date = null;
while (null != (title = reader.readLine())) {
priority = reader.readLine();
status = reader.readLine();
date = ToDoItem.FORMAT.parse(reader.readLine());
mAdapter.add(new ToDoItem(title, Priority.valueOf(priority),
Status.valueOf(status), date));
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
} finally {
if (null != reader) {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
// Save ToDoItems to file
private void saveItems() {
PrintWriter writer = null;
try {
FileOutputStream fos = openFileOutput(FILE_NAME, MODE_PRIVATE);
writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(
fos)));
for (int idx = 0; idx < mAdapter.getCount(); idx++) {
writer.println(mAdapter.getItem(idx));
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (null != writer) {
writer.close();
}
}
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
Any thought on how to improve the cancelButton code in the AddToDoAcitivity?
final Button cancelButton = (Button) findViewById(R.id.cancelButton);
cancelButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered cancelButton.OnClickListener.onClick()");
//TODO - Implement onClick().
Intent intent = new Intent setResult;
finish();
}
});
change your AddToDoActivity code like this
public class AddToDoActivity extends Activity {
// 7 days in milliseconds - 7 * 24 * 60 * 60 * 1000
private static final int SEVEN_DAYS = 604800000;
private static final String TAG = "Lab-UserInterface";
private static String timeString;
private static String dateString;
private static TextView dateView;
private static TextView timeView;
private Date mDate;
private RadioGroup mPriorityRadioGroup;
private RadioGroup mStatusRadioGroup;
private EditText mTitleText;
private RadioButton mDefaultStatusButton;
private RadioButton mDefaultPriorityButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_todo);
mTitleText = (EditText) findViewById(R.id.title);
mDefaultStatusButton = (RadioButton) findViewById(R.id.statusNotDone);
mDefaultPriorityButton = (RadioButton) findViewById(R.id.medPriority);
mPriorityRadioGroup = (RadioGroup) findViewById(R.id.priorityGroup);
mStatusRadioGroup = (RadioGroup) findViewById(R.id.statusGroup);
dateView = (TextView) findViewById(R.id.date);
timeView = (TextView) findViewById(R.id.time);
// Set the default date and time
setDefaultDateTime();
// OnClickListener for the Date button, calls showDatePickerDialog() to show
// the Date dialog
final Button datePickerButton = (Button) findViewById(R.id.date_picker_button);
datePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showDatePickerDialog();
}
});
// OnClickListener for the Time button, calls showTimePickerDialog() to show
// the Time Dialog
final Button timePickerButton = (Button) findViewById(R.id.time_picker_button);
timePickerButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
showTimePickerDialog();
}
});
// OnClickListener for the Cancel Button,
final Button cancelButton = (Button) findViewById(R.id.cancelButton);
cancelButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered cancelButton.OnClickListener.onClick()");
finish();
}
});
//OnClickListener for the Reset Button
final Button resetButton = (Button) findViewById(R.id.resetButton);
resetButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered resetButton.OnClickListener.onClick()");
setDefaultDateTime();
mTitleText.setText("");
mDefaultStatusButton.setChecked(true);
mDefaultPriorityButton.setChecked(true);
}
});
// OnClickListener for the Submit Button
// Implement onClick().
final Button submitButton = (Button) findViewById(R.id.submitButton);
submitButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
log("Entered submitButton.OnClickListener.onClick()");
// Gather ToDoItem data
Priority priority = getPriority();
Status status = getStatus();
String titleString = mTitleText.getText().toString();
// Date
String fullDate = dateString + " " + timeString;
// Package ToDoItem data into an Intent
Intent data = new Intent();
ToDoItem.packageIntent(data, titleString, priority, status, fullDate);
setResult(Activity.RESULT_OK, data);
finish();
}
});
}
// Do not modify below here
// Use this method to set the default date and time
private void setDefaultDateTime() {
// Default is current time + 7 days
mDate = new Date();
mDate = new Date(mDate.getTime() + SEVEN_DAYS);
Calendar c = Calendar.getInstance();
c.setTime(mDate);
setDateString(c.get(Calendar.DAY_OF_MONTH), c.get(Calendar.MONTH),
c.get(Calendar.YEAR));
dateView.setText(dateString);
setTimeString(c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE),
c.get(Calendar.MILLISECOND));
timeView.setText(timeString);
}
private static void setDateString(int dayOfMonth, int monthOfYear, int year) {
// Increment monthOfYear for Calendar/Date -> Time Format setting
monthOfYear++;
String mon = "" + monthOfYear;
String day = "" + dayOfMonth;
if (monthOfYear < 10)
mon = "0" + monthOfYear;
if (dayOfMonth < 10)
day = "0" + dayOfMonth;
dateString = year + "-" + mon + "-" + day;
}
private static void setTimeString(int hourOfDay, int minute, int mili) {
String hour = "" + hourOfDay;
String min = "" + minute;
if (hourOfDay < 10)
hour = "0" + hourOfDay;
if (minute < 10)
min = "0" + minute;
timeString = hour + ":" + min + ":00";
}
private Priority getPriority() {
switch (mPriorityRadioGroup.getCheckedRadioButtonId()) {
case R.id.lowPriority: {
return Priority.LOW;
}
case R.id.highPriority: {
return Priority.HIGH;
}
default: {
return Priority.MED;
}
}
}
private Status getStatus() {
switch (mStatusRadioGroup.getCheckedRadioButtonId()) {
case R.id.statusDone: {
return Status.DONE;
}
default: {
return Status.NOTDONE;
}
}
}
// DialogFragment used to pick a ToDoItem deadline date
public static class DatePickerFragment extends DialogFragment implements
DatePickerDialog.OnDateSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int day = c.get(Calendar.DAY_OF_MONTH);
int month = c.get(Calendar.MONTH);
int year = c.get(Calendar.YEAR);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
#Override
public void onDateSet(DatePicker view, int dayOfMonth, int monthOfYear,
int year) {
setDateString(dayOfMonth, monthOfYear, year);
dateView.setText(dateString);
}
}
// DialogFragment used to pick a ToDoItem deadline time
public static class TimePickerFragment extends DialogFragment implements
TimePickerDialog.OnTimeSetListener {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog and return
return new TimePickerDialog(getActivity(), this, hour, minute,
true);
}
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
setTimeString(hourOfDay, minute, 0);
timeView.setText(timeString);
}
}
private void showDatePickerDialog() {
DialogFragment newFragment = new DatePickerFragment();
newFragment.show(getFragmentManager(), "datePicker");
}
private void showTimePickerDialog() {
DialogFragment newFragment = new TimePickerFragment();
newFragment.show(getFragmentManager(), "timePicker");
}
private void log(String msg) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
Log.i(TAG, msg);
}
}
ISSUE:
I have a TimePicker which I'd like to use to save the value of the long/string "minutes" which represents the total number of minutes between the current time and the time selected by the timepicker.
For example: If it is currently 7:30 and the user selects 8:30 it will save 60 minutes as the value of minutes.
I've managed to implement the following source code (shown below) however I'm getting a few errors stating:
"The local variable tp may not have been initialized"
Using the method suggested in the comments below - although I'm following the instructions precisely.
COMPILER PROBLEMS:
Description Resource Path Location Type
The local variable tp may not have been initialized AddEditDevice.java line 119 Java Problem
The local variable tp may not have been initialized AddEditDevice.java line 120 Java Problem
SOURCE:
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.ViewGroup;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.TextView;
import android.widget.TimePicker;
import java.text.DecimalFormat;
import android.util.Log;
import java.util.Calendar;
public class AddEditDevice extends Activity {
private long rowID;
private EditText nameEt;
private EditText capEt;
private EditText codeEt;
private TimePicker timeEt;
private TextView ssidTextView;
Calendar cal = Calendar.getInstance();
TimePicker tp;
// #Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.add_country);
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
String ssidString = info.getSSID();
if (ssidString.startsWith("\"") && ssidString.endsWith("\"")){
ssidString = ssidString.substring(1, ssidString.length()-1);
}
//TextView ssidTextView = (TextView) findViewById(R.id.wifiSSID);
ssidTextView = (TextView) findViewById(R.id.wifiSSID);
ssidTextView.setText(ssidString);
nameEt = (EditText) findViewById(R.id.nameEdit);
capEt = (EditText) findViewById(R.id.capEdit);
codeEt = (EditText) findViewById(R.id.codeEdit);
timeEt = (TimePicker) findViewById(R.id.timeEdit);
Bundle extras = getIntent().getExtras();
if (extras != null)
{
rowID = extras.getLong("row_id");
nameEt.setText(extras.getString("name"));
capEt.setText(extras.getString("cap"));
codeEt.setText(extras.getString("code"));
String time = extras.getString("time");
String[] parts = time.split(":");
timeEt.setCurrentHour(Integer.valueOf(parts[0]));
timeEt.setCurrentMinute(Integer.valueOf(parts[1]));
timeEt.setIs24HourView(false);
}
Button saveButton =(Button) findViewById(R.id.saveBtn);
saveButton.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
if (nameEt.getText().length() != 0)
{
AsyncTask<Object, Object, Object> saveContactTask =
new AsyncTask<Object, Object, Object>()
{
#Override
protected Object doInBackground(Object... params)
{
saveContact();
return null;
}
#Override
protected void onPostExecute(Object result)
{
finish();
}
};
saveContactTask.execute((Object[]) null);
}
else
{
AlertDialog.Builder alert = new AlertDialog.Builder(AddEditDevice.this);
alert.setTitle(R.string.errorTitle);
alert.setMessage(R.string.errorMessage);
alert.setPositiveButton(R.string.errorButton, null);
alert.show();
}
}
});}
public static void main(String[] args) {
Calendar cal = Calendar.getInstance();
TimePicker tp;
cal.set(Calendar.HOUR_OF_DAY, tp.getCurrentHour());
cal.set(Calendar.MINUTE, tp.getCurrentMinute());
long minutes = (cal.getTimeInMillis() -
Calendar.getInstance().getTimeInMillis()) / 1000 / 60;
}
private void saveContact()
{
DatabaseConnector dbConnector = new DatabaseConnector(this);
if (getIntent().getExtras() == null)
{
// Log.i("Test for Null", ""+dbConnector+" "+nameEt+" "+capEt+" "+timeEt+" "+codeEt+" "+ssidTextView);
dbConnector.insertContact(nameEt.getText().toString(),
capEt.getText().toString(),
timeEt.getCurrentHour().toString() + ":"
+ timeEt.getCurrentMinute().toString(),
codeEt.getText().toString(),
ssidTextView.getText().toString());
}
else
{
dbConnector.updateContact(rowID,
nameEt.getText().toString(),
capEt.getText().toString(),
timeEt.getCurrentHour().toString() + ":"
+ timeEt.getCurrentMinute().toString(),
codeEt.getText().toString(),
ssidTextView.getText().toString());
}
}
}
Use java.util.Calendar to get current values and subtract.
Calendar cal = Calendar.getInstance();
TimePicker tp;
// ...
cal.set(Calendar.HOUR_OF_DAY, tp.getCurrentHour());
cal.set(Calendar.MINUTE, tp.getCurrentMinute());
long minutes = (cal.getTimeInMillis() -
Calendar.getInstance().getTimeInMillis()) / 1000 / 60;
Edit: Try this Java console application. A proof that it works.
import java.util.Calendar;
public class Main {
public static void main(String[] args) {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 20);
cal.set(Calendar.MINUTE, 58);
long minutes = (cal.getTimeInMillis() - Calendar.getInstance().getTimeInMillis()) / 1000 / 60;
System.out.println(minutes);
}
}
Returns 4 at 20:54 of my local time.