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Can't delete and create data on Fragment Activity [closed]

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I'm trying to delete and create a data string from a API webpage but i can't get the error code
I create API website from native php. But i create data on postman work insert and delete data
Code Delete Data
package com.dev.kedaiit.sibooks.ui.kategori;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.dev.kedaiit.sibooks.MainActivity;
import com.dev.kedaiit.sibooks.R;
import com.dev.kedaiit.sibooks.util.AppController;
import com.dev.kedaiit.sibooks.util.ServerAPI;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
public class DeleteKategori extends AppCompatActivity {
EditText deleteID ;
Button btnDelete;
ProgressDialog pd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_delete_kategori);
deleteID = (EditText) findViewById(R.id.id_kategori);
btnDelete = (Button) findViewById(R.id.btn_delete);
pd = new ProgressDialog(DeleteKategori.this);
btnDelete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
deleteData();
}
});
}
private void deleteData()
{
pd.setMessage("Delete Data ...");
pd.setCancelable(true);
pd.show();
StringRequest delReq = new StringRequest(Request.Method.POST, ServerAPI.URL_DELETE_KATEGORI, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pd.cancel();
Log.d("volley","response : " + response.toString());
try {
JSONObject res = new JSONObject(response);
Toast.makeText(DeleteKategori.this,"Successs" +res.getString("message"), Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
startActivity(new Intent(DeleteKategori.this, KategoriFragment.class));
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pd.cancel();
Log.d("volley", "error : " + error.getMessage());
Toast.makeText(DeleteKategori.this, "ERROR DELETE DATA", Toast.LENGTH_SHORT).show();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> map = new HashMap<>();
map.put("id_kategori",deleteID.getText().toString());
return map;
}
};
AppController.getInstance().addToRequestQueue(delReq);
}
}
Code Insert Data
package com.dev.kedaiit.sibooks.ui.kategori;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.dev.kedaiit.sibooks.R;
import com.dev.kedaiit.sibooks.util.AppController;
import com.dev.kedaiit.sibooks.util.ServerAPI;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
public class InsertKategori extends AppCompatActivity {
EditText id_kategori, kategori;
Button btnBatal, btnSimpan;
ProgressDialog pd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_insert_kategori);
/*get data from intent*/
Intent data = getIntent();
final int update = data.getIntExtra("update",0);
String intent_idkategori = data.getStringExtra("id_kategori");
String intent_kategori = data.getStringExtra("kategori");
/*end get data from intent*/
// id_kategori = (EditText) findViewById(R.id.idkategori);
kategori = (EditText) findViewById(R.id.edt_kategori);
btnBatal = (Button) findViewById(R.id.btn_cancel);
btnSimpan = (Button) findViewById(R.id.btn_simpan);
pd = new ProgressDialog(InsertKategori.this);
/*kondisi update / insert*/
if(update == 1)
{
btnSimpan.setText("Update Data");
id_kategori.setText(intent_idkategori);
id_kategori.setVisibility(View.VISIBLE);
kategori.setText(intent_kategori);
}
btnSimpan.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(update == 1)
{
Update_data();
}else {
simpanData();
}
}
});
btnBatal.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent main = new Intent(InsertKategori.this,KategoriFragment.class);
startActivity(main);
}
});
}
private void Update_data()
{
pd.setMessage("Update Data");
pd.setCancelable(true);
pd.show();
StringRequest updateReq = new StringRequest(Request.Method.POST, ServerAPI.URL_UPDATE_KATEGORI,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pd.cancel();
try {
JSONObject res = new JSONObject(response);
Toast.makeText(InsertKategori.this, ""+ res.getString("message") , Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
startActivity( new Intent(InsertKategori.this,KategoriFragment.class));
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pd.cancel();
Toast.makeText(InsertKategori.this, "Gagal Insert Data", Toast.LENGTH_SHORT).show();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> map = new HashMap<>();
map.put("id_kategori",id_kategori.getText().toString());
map.put("kategori",kategori.getText().toString());
return map;
}
};
AppController.getInstance().addToRequestQueue(updateReq);
}
private void simpanData()
{
pd.setMessage("Menyimpan Data");
pd.setCancelable(true);
pd.show();
StringRequest sendData = new StringRequest(Request.Method.POST, ServerAPI.URL_INSERT_KATEGORI,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pd.cancel();
try {
JSONObject res = new JSONObject(response);
Toast.makeText(InsertKategori.this, ""+ res.getString("message") , Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
startActivity( new Intent(InsertKategori.this,KategoriFragment.class));
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pd.cancel();
Toast.makeText(InsertKategori.this, "Gagal Insert Data", Toast.LENGTH_SHORT).show();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> map = new HashMap<>();
map.put("id_kategori",id_kategori.getText().toString());
map.put("kategori",kategori.getText().toString());
return map;
}
};
AppController.getInstance().addToRequestQueue(sendData);
}
}
Fragment Kategori
package com.dev.kedaiit.sibooks.ui.kategori;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.DividerItemDecoration;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.dev.kedaiit.sibooks.R;
import com.dev.kedaiit.sibooks.adapter.AdapterDataKategori;
import com.dev.kedaiit.sibooks.model.DataKategori;
import com.dev.kedaiit.sibooks.util.ServerAPI;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
public class KategoriFragment extends Fragment {
private RecyclerView recyclerView;
private FloatingActionButton floatingActionButton;
private LinearLayoutManager linearLayoutManager;
private DividerItemDecoration dividerItemDecoration;
private List<DataKategori> list;
private RecyclerView.Adapter adapter;
public KategoriFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(final LayoutInflater inflater, final ViewGroup container, Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.fragment_kategori, container, false);
recyclerView = view.findViewById(R.id.recyclerViewKategori);
list = new ArrayList<DataKategori>();
adapter = new AdapterDataKategori(getContext(), list);
linearLayoutManager = new LinearLayoutManager(getContext());
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(), linearLayoutManager.getOrientation());
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.addItemDecoration(dividerItemDecoration);
recyclerView.setAdapter(adapter);
FloatingActionButton fab = (FloatingActionButton) view.findViewById(R.id.fab);
FloatingActionButton delKtg = (FloatingActionButton) view.findViewById(R.id.delKtg);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(view.getContext(), InsertKategori.class);
startActivity(intent);
}
});
delKtg.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(view.getContext(),DeleteKategori.class);
startActivity(intent);
}
});
getData();
return view;
}
private void getData() {
final ProgressDialog progressDialog = new ProgressDialog(getContext());
progressDialog.setMessage("Loading...");
progressDialog.show();
JsonObjectRequest my_request = new JsonObjectRequest(Request.Method.GET, ServerAPI.URL_DATA_KATEGORI, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try{
JSONArray jsonArray = response.getJSONArray("data");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject Jobj = jsonArray.getJSONObject(i);
DataKategori obj = new DataKategori();
obj.setId_kategori(Jobj.getString("id_kategori"));
obj.setKategori(Jobj.getString("kategori"));
list.add(obj);
}
} catch (JSONException e) {
e.printStackTrace();
progressDialog.dismiss();
}
adapter.notifyDataSetChanged();
progressDialog.dismiss();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Volley", "Error: " + error.getMessage());
progressDialog.dismiss();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
requestQueue.add(my_request);
}
}
https://github.com/bellabeen/sibooks-client This project me get this in the logcat and when i dont get error code

Your code is almost fine. You just missed one thing. You did not initialize VolleyRequest. Inside simponData and UpdateData methods write this line at the bottom.
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
requestQueue.add(my_request);
instead of AppController.getInstance().addToRequestQueue(updateReq).
other thing is you are calling the fragment in intent from when response is received .You should call onbackPress() when result is recieved successfully.
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pd.cancel();
try {
JSONObject res = new JSONObject(response);
Toast.makeText(InsertKategori.this, ""+ res.getString("message") , Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
onBackPressed();
}
},
It will restore the previous fragment. In order to update the KategoriFragment view when successful response is received, you can call the getData() method in onResume() method instead of oncreate(). it will call this method whenever fragment is visible to the use

How to fix org.json.JSONException: on Volley?

I am developing Login on android via connection with php (web).
Code
package com.example.salmakhalil.myapplication;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
public class LoginActivity extends AppCompatActivity {
private EditText email,password;
private Button btn_login;
private TextView link_regist;
private ProgressBar loading;
private static String URL_LOGIN="http://192.168.8.101/android_register_login/login.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
loading=findViewById(R.id.loading);
email=findViewById(R.id.email);
password=findViewById(R.id.password);
btn_login=findViewById(R.id.btn_login);
link_regist=findViewById(R.id.link_regist);
btn_login.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String mEmail=email.getText().toString().trim();
String mPass=password.getText().toString().trim();
if (!mEmail.isEmpty() || !mPass.isEmpty()){
Login(mEmail,mPass);
}
else {
email.setError("Please insert email");
password.setError("Please insert Password");
}
}
});
link_regist.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(LoginActivity.this, MainActivity.class));
}
});
}
private void Login(String email, String password){
loading.setVisibility(View.VISIBLE);
btn_login.setVisibility(View.GONE);
//I think here facing a problem
StringRequest stringRequest=new StringRequest(Request.Method.POST, URL_LOGIN,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonObject=new JSONObject(response);
String success = jsonObject.getString("success");
JSONArray jsonArray=jsonObject.getJSONArray("login");
if (success.equals("1")) {
for (int i=0; i<jsonArray.length();i++){
JSONObject object = jsonArray.getJSONObject(i);
String name = object.getString("name").trim();
String email=object.getString( "email").trim();
Toast.makeText(LoginActivity.this,
"Success Login. \nYour Name : "
+name+"\nYour Email : "
+email, Toast.LENGTH_SHORT)
.show();
loading.setVisibility(View.GONE);
}
}
} catch (JSONException e) {
e.printStackTrace();
loading.setVisibility(View.GONE);
btn_login.setVisibility(View.VISIBLE);
Toast.makeText(LoginActivity.this, "Error!!! " +e.toString(),
Toast.LENGTH_SHORT).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(LoginActivity.this, "Error!! " +error.toString(),
Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("email", email);
params.put("password", password);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
}
When I click on the login Button, its showing thee error
org.json.JSONException: No value for success.
I'm all the day trying to fix it. I have read other posts on Stack, no one helped me. I hope you can help me. Thanks.

Apparently the jsonObject your receive in onResponse() does not have a value for entry "success"
You should use the method jsonObject.optString("success"); instead of jsonObject.getString("success");
optString("success") returns the empty string ("") if the key "success" doesn't exist. getString("success") on the other hand throws a JSONException.

Can you share the response that is supposed to get. I think the response doesn't contain any field name "success". Query on postman to get response otherwise talk to your back end developer.

java.io.ioexception unexpected end of stream on com.android.okhttp.address #f32949bd

Hello , I am making a android application using Mysql database , where i am trying to make registration of the user !! can anyone help me plz
i am getting this error when i click on Register button : java.io.ioexception unexpected end of stream on com.android.okhttp.address #f32949bd
This is my code :
package androidloginandregistration.inducesmile.com.enpascheres;
/**
* Created by User on 10/12/2017.
*/
public class Constants {
public static final String ROOT_URL ="http://192.168.1.3/android/v1/registerUser.php";
public static final String URL_REGISTER = ROOT_URL+"registerUser.php";
}
and this is the main activity:
import android.app.ProgressDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private EditText editTextUsername,editTextEmail,editTextPassword;
private Button buttonRegister;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextEmail=(EditText)findViewById(R.id.editTextEmail);
editTextUsername=(EditText)findViewById(R.id.editTextUsername);
editTextPassword=(EditText)findViewById(R.id.editTextPassword);
buttonRegister=(Button)findViewById(R.id.buttonRegister);
progressDialog = new ProgressDialog(this);
buttonRegister.setOnClickListener(this);
}
private void registerUser(){
final String email= editTextEmail.getText().toString().trim();
final String username= editTextUsername.getText().toString().trim();
final String password= editTextPassword.getText().toString().trim();
progressDialog.setMessage("Registering user ...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
Constants.URL_REGISTER,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonObject= new JSONObject(response);
Toast.makeText(getApplicationContext(),jsonObject.getString("message"),Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.hide();
Toast.makeText(getApplicationContext(),error.getMessage(),Toast.LENGTH_LONG).show();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new HashMap<>();
params.put("username",username);
params.put("email",email);
params.put("password",password);
return params;
}
};
RequestQueue requestQueue= Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
#Override
public void onClick(View view) {
if(view==buttonRegister)
registerUser();
}
}

Compile error in Android

Can anyone shed some light on this for me? I'm buiding this app for my final project that's due on Friday. Head. is. FRIED.
Getting this error on build
C:\Users\Gary\AndroidStudioProjects\NatureAll.v2\app\src\main\java\com\example\gary\natureallv2\SearchAnimalActivity.java:58: error: incompatible types: int cannot be converted to String
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(POST,
^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
It's telling me int can't be converted to string but I can't see where the int is. Here's my code:
package com.example.gary.natureallv2;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Created by Gary on 12/09/2016.Go Me
*/
public class SearchAnimalActivity extends AppCompatActivity{
EditText etSearchName;
Button btnSearch;
RequestQueue requestQueue;
String showUrl = "http://192.168.1.10/myDocs/mainProject/search_animal_and.php";
// String showUrl = "http://192.168.1.10/tutorial/showStudents.php";
TextView tvName;
TextView tvLatinName;
TextView tvDescription;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.search_animal_activity);
etSearchName = (EditText) findViewById(R.id.etSearchName);
tvName = (TextView) findViewById(R.id.tvName);
tvLatinName = (TextView) findViewById(R.id.tvLatinName);
tvDescription = (TextView) findViewById(R.id.tvDescription);
btnSearch = (Button) findViewById(R.id.btnSearch);
requestQueue = Volley.newRequestQueue(getApplicationContext());
btnSearch.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// System.out.println("ww");
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST,
showUrl, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
System.out.println(response.toString());
try {
JSONArray animals = response.getJSONArray("animals");
for (int i = 0; i < animals.length(); i++) {
JSONObject animal = animals.getJSONObject(i);
//Change here for different string names
String name = animal.getString("name");
String latinName = animal.getString("latinName");
String description = animal.getString("description");
tvName.append(name);
tvLatinName.append(latinName);
tvDescription.append(description);
}
//result.append("===\n");
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
System.out.append(error.getMessage());
}
});
requestQueue.add(jsonObjectRequest);
}
});
}
}
Many thanks in advance

tvName.append(name);
tvLatinName.append(latinName);
tvDescription.append(description);
You are trying to append a string to a View which has a value of its id (int). This wont work. you should instead call a .setText() on your view and set the text to its current value plus what you want to append.

How to populate a listview in Android using Volley

I am having trouble trying to get my andoid app to return a list view of all search results returned from a PHP files. I am using a wamp server to host the php files then I call them in the application using Volley. My problem is I can't get it to work with multiple return values. I have tried many different ways using videos online and resources from this site but i cant seem to get to work. This is my first Android application so I am new enough of the idea of a list view and json.
package com.example.mullally.newloginregister;
import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class HomeScreen extends AppCompatActivity {
String status = "";
ArrayAdapter<String> adapter;
ArrayList<String> items;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_screen);
final TextView createLink = (TextView) findViewById(R.id.tvCreate);
final TextView lostLink = (TextView) findViewById(R.id.tvLost);
final TextView foundLink = (TextView) findViewById(R.id.tvFound);
final Button btTest = (Button) findViewById(R.id.btTest);
createLink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent registerIntent = new Intent(HomeScreen.this, CreateAdvert.class);
HomeScreen.this.startActivity(registerIntent);
}
});
lostLink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
status="Lost";
// Response received from the server
Response.Listener<String> responseListener = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success) {
String title = jsonResponse.getString("title");
String location = jsonResponse.getString("location");
Intent intent = new Intent(HomeScreen.this, BrowseLost.class);
intent.putExtra("title", title);
intent.putExtra("location", location);
HomeScreen.this.startActivity(intent);
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(HomeScreen.this);
builder.setMessage("Something Went Wrong")
.setNegativeButton("Back", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
BrowseRequest browseRequest = new BrowseRequest(status, responseListener);
RequestQueue queue = Volley.newRequestQueue(HomeScreen.this);
queue.add(browseRequest);
}
});
foundLink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
status = "Found";
// Response received from the server
Response.Listener<String> responseListener = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success) {
String title = jsonResponse.getString("title");
String location = jsonResponse.getString("location");
Intent intent = new Intent(HomeScreen.this, BrowseFound.class);
intent.putExtra("title", title);
intent.putExtra("location", location);
HomeScreen.this.startActivity(intent);
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(HomeScreen.this);
builder.setMessage("Something Went Wrong")
.setNegativeButton("Back", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
BrowseRequest browseRequest = new BrowseRequest(status, responseListener);
RequestQueue queue = Volley.newRequestQueue(HomeScreen.this);
queue.add(browseRequest);
}
});
btTest.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
status = "Found";
// Response received from the server
Response.Listener<String> responseListener = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success) {
String title = jsonResponse.getString("title");
String description = jsonResponse.getString("description");
String location = jsonResponse.getString("location");
String status = jsonResponse.getString("status");
String category = jsonResponse.getString("category");
Intent intent = new Intent(HomeScreen.this, ViewAdvert.class);
intent.putExtra("title", title);
intent.putExtra("description", description);
intent.putExtra("location", location);
intent.putExtra("status", status);
intent.putExtra("category", category);
HomeScreen.this.startActivity(intent);
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(HomeScreen.this);
builder.setMessage("Something Went Wrong")
.setNegativeButton("Back", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
ViewRequest viewRequest = new ViewRequest(status, responseListener);
RequestQueue queue = Volley.newRequestQueue(HomeScreen.this);
queue.add(viewRequest);
}
});
This is the home screen. When a textview is clicked it would launch a request using volley in a seperate request class it is supposed to then return values add them to a json response opject and pass them into the Browse Lost class where it is then added to a listView.
This is the Request class:
package com.example.mullally.newloginregister;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;
import java.util.HashMap;
import java.util.Map;
/**
* Created by mullally on 14/04/2016.
*/
public class BrowseRequest extends StringRequest {
//192.168.11.2
private static final String BROWSE_REQUEST_URL = "http://192.168.11.5/android_content/GetAdvert.php";
private Map<String,String> params;
public BrowseRequest(String status, Response.Listener<String> listener){
super(Request.Method.POST, BROWSE_REQUEST_URL,listener, null);
params=new HashMap<>();
params.put("status", status);
}
#Override
public Map<String, String> getParams() {
return params;
}
}
And this is the activity that is launched to display the list :
package com.example.mullally.newloginregister;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.ArrayAdapter;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class BrowseLost extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_browse_lost);
final ListView listView = (ListView) findViewById(R.id.listView);
final Intent intent= getIntent();
String title = intent.getStringExtra("title");
String location = intent.getStringExtra("location");
String details = title + " Location: " + location;
List<String> foundArray = new ArrayList<>();
foundArray.add(details);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_activated_2, android.R.id.text1, foundArray);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// ListView Clicked item index
int itemPosition = position;
// ListView Clicked item value
String itemValue = (String) listView.getItemAtPosition(position);
// Show Alert
Toast.makeText(getApplicationContext(),
"Position :" + itemPosition + " ListItem : " + itemValue, Toast.LENGTH_LONG)
.show();
}
});
}
}
So basically I am trying to populate the listview with all values returned from the PHP. The php encodes the values into a json response eg.
[{"title":"Phone Found","location":"Dublin 6"},{"title":"test","location":"Dublin"},{"title":"dog","location":"Dublin 1"},{"title":"new","location":"Dublin 6W"}]