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This is my activity from where the place picker activity is called on button click. (Main2Activity)
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| package com.example.kaushal28.locationbasedreminder; | |
| import android.app.Activity; | |
| import android.app.AlertDialog; | |
| import android.content.Intent; | |
| import android.graphics.Bitmap; | |
| import android.os.Bundle; | |
| import android.support.v4.app.NavUtils; | |
| import android.support.v7.app.AppCompatActivity; | |
| import android.support.v7.widget.Toolbar; | |
| import android.view.Menu; | |
| import android.view.MenuItem; | |
| import android.view.View; | |
| import android.widget.Button; | |
| import android.widget.TextView; | |
| import com.google.android.gms.common.GooglePlayServicesNotAvailableException; | |
| import com.google.android.gms.common.GooglePlayServicesRepairableException; | |
| import com.google.android.gms.common.api.GoogleApiClient; | |
| import com.google.android.gms.location.places.Place; | |
| import com.google.android.gms.location.places.ui.PlacePicker; | |
| import com.google.android.gms.maps.CameraUpdate; | |
| import com.google.android.gms.maps.CameraUpdateFactory; | |
| import com.google.android.gms.maps.GoogleMap; | |
| import com.google.android.gms.maps.MapsInitializer; | |
| import com.google.android.gms.maps.model.LatLng; | |
| import com.google.android.gms.maps.model.LatLngBounds; | |
| import android.database.Cursor; | |
| import android.widget.EditText; | |
| import android.widget.Toast; | |
| import com.google.android.gms.maps.OnMapReadyCallback; | |
| import com.google.android.gms.maps.model.MarkerOptions; | |
| import java.io.FileOutputStream; | |
| public class Main2Activity extends AppCompatActivity implements OnMapReadyCallback{ | |
| private static final int PLACE_PICKER_REQUEST = 1; | |
| private TextView mName; | |
| private TextView mAddress; | |
| private TextView mAttributions; | |
| private GoogleApiClient mGoogleApiClient; | |
| public TextView tv4; | |
| private static final LatLngBounds BOUNDS_MOUNTAIN_VIEW = new LatLngBounds( | |
| new LatLng(37.398160, -122.180831), new LatLng(37.430610, -121.972090)); | |
| private Toolbar toolbar; | |
| private GoogleMap mMap; | |
| private boolean flag = false; | |
| DatabaseHelper myDb; | |
| EditText newevent; | |
| Button submit; | |
| Button viewremainders; | |
| @Override | |
| protected void onCreate(Bundle savedInstanceState) { | |
| super.onCreate(savedInstanceState); | |
| try { | |
| MapsInitializer.initialize(this); | |
| } catch (Exception e) { | |
| e.printStackTrace(); | |
| } | |
| setContentView(R.layout.activity_main2); | |
| myDb =new DatabaseHelper(this); | |
| newevent=(EditText)findViewById(R.id.newEvent); | |
| submit=(Button)findViewById(R.id.submit); | |
| viewremainders=(Button)findViewById(R.id.view); | |
| toolbar = (Toolbar)findViewById(R.id.app_bar0); | |
| setSupportActionBar(toolbar); | |
| getSupportActionBar().setHomeButtonEnabled(true); //for back button to main activity. | |
| getSupportActionBar().setDisplayHomeAsUpEnabled(true); | |
| Button pickerButton = (Button) findViewById(R.id.pickerButton); | |
| tv4 = (TextView)findViewById(R.id.textView4); | |
| pickerButton.setOnClickListener(new View.OnClickListener() { | |
| @Override | |
| public void onClick(View v) { | |
| try { | |
| PlacePicker.IntentBuilder intentBuilder = | |
| new PlacePicker.IntentBuilder(); | |
| intentBuilder.setLatLngBounds(BOUNDS_MOUNTAIN_VIEW); | |
| Intent intent = intentBuilder.build(Main2Activity.this); | |
| startActivityForResult(intent, PLACE_PICKER_REQUEST); | |
| } catch (GooglePlayServicesRepairableException | |
| | GooglePlayServicesNotAvailableException e) { | |
| e.printStackTrace(); | |
| } | |
| } | |
| }); | |
| AddData(); | |
| viewremainders(); | |
| } | |
| @Override | |
| public void onMapReady(GoogleMap map) { | |
| mMap = map; | |
| } | |
| //method for adding data in Database. | |
| public void AddData(){ | |
| submit.setOnClickListener( | |
| new View.OnClickListener(){ | |
| @Override | |
| public void onClick(View v){ | |
| boolean isInserted =myDb.insertData(newevent.getText().toString(),tv4.getText().toString()); | |
| if(isInserted==true) | |
| Toast.makeText(Main2Activity.this,"Data Inserted",Toast.LENGTH_LONG).show(); | |
| else | |
| Toast.makeText(Main2Activity.this,"Data not Inserted",Toast.LENGTH_LONG).show(); | |
| } | |
| } | |
| ); | |
| } | |
| //Method for view all data from database. | |
| public void viewremainders(){ | |
| viewremainders.setOnClickListener( | |
| new View.OnClickListener(){ | |
| @Override | |
| public void onClick(View v){ | |
| Cursor res= myDb.getAllData(); | |
| if(res.getCount()==0) | |
| { | |
| Showmessage("Error","No remainders found"); | |
| return; | |
| } | |
| StringBuffer buffer=new StringBuffer(); | |
| while(res.moveToNext()) | |
| { | |
| buffer.append("Id : " +res.getString(0)+"\n"); | |
| buffer.append("Event : " +res.getString(1)+"\n"); | |
| buffer.append("Location : " +res.getString(2)+"\n"); | |
| } | |
| Showmessage("Data",buffer.toString()); | |
| } | |
| } | |
| ); | |
| } | |
| public void Showmessage(String title,String message) | |
| { | |
| AlertDialog.Builder builder=new AlertDialog.Builder(this); | |
| builder.setCancelable(true); | |
| builder.setTitle(title); | |
| builder.setMessage(message); | |
| builder.show(); | |
| } | |
| //opening place picker activity. | |
| protected void onActivityResult(int requestCode, int resultCode, Intent data) { | |
| if (requestCode == PLACE_PICKER_REQUEST | |
| && resultCode == Activity.RESULT_OK) { | |
| final Place place = PlacePicker.getPlace(this, data); | |
| final CharSequence name = place.getName(); | |
| final CharSequence address = place.getAddress(); | |
| String attributions = (String) place.getAttributions(); | |
| if (attributions == null) { | |
| attributions = ""; | |
| } | |
| // tv4.setText(place.getLatLng().toString()+"\n"+name+"\n"+address+"\n"+attributions); To get latitide and longitudes. | |
| tv4.setText(address+"\n"+attributions); | |
| LatLngBounds selectedPlaceBounds = PlacePicker.getLatLngBounds(data); | |
| // move camera to selected bounds | |
| CameraUpdate camera = CameraUpdateFactory.newLatLngBounds(selectedPlaceBounds,0); | |
| mMap.moveCamera(camera); | |
| // take snapshot and implement the snapshot ready callback | |
| mMap.snapshot(new GoogleMap.SnapshotReadyCallback() { | |
| Bitmap bitmap=null; | |
| public void onSnapshotReady(Bitmap snapshot) { | |
| // handle snapshot here | |
| bitmap = snapshot; | |
| try { | |
| FileOutputStream out = new FileOutputStream("/mnt/sdcard/Download/bounty.png"); | |
| bitmap.compress(Bitmap.CompressFormat.PNG, 90, out); | |
| } catch (Exception e) { | |
| e.printStackTrace(); | |
| } | |
| } | |
| }); | |
| } else { | |
| super.onActivityResult(requestCode, resultCode, data); | |
| } | |
| } | |
| //Methods for toolbar | |
| @Override | |
| public boolean onCreateOptionsMenu(Menu menu) { | |
| // Inflate the menu; this adds items to the action bar if it is present. | |
| getMenuInflater().inflate(R.menu.menu_main2, menu); | |
| return true; | |
| } | |
| @Override | |
| public boolean onOptionsItemSelected(MenuItem item) { | |
| // Handle action bar item clicks here. The action bar will | |
| // automatically handle clicks on the Home/Up button, so long | |
| // as you specify a parent activity in AndroidManifest.xml. | |
| int id = item.getItemId(); | |
| //noinspection SimplifiableIfStatement | |
| if (id == R.id.action_settings) { | |
| return true; | |
| } | |
| if(id == android.R.id.home){ | |
| NavUtils.navigateUpFromSameTask(this); | |
| } | |
| return super.onOptionsItemSelected(item); | |
| } | |
| } | |
| Stack trace: | |
| 08-30 18:44:20.630 15611-15611/com.example.kaushal28.locationbasedreminder E/test: Exception | |
| 08-30 18:44:20.637 15611-15611/com.example.kaushal28.locationbasedreminder E/AndroidRuntime: FATAL EXCEPTION: main | |
| java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { (has extras) }} to activity {com.example.kaushal28.locationbasedreminder/com.example.kaushal28.locationbasedreminder.Main2Activity}: java.lang.NullPointerException | |
| at android.app.ActivityThread.deliverResults(ActivityThread.java:3488) | |
| at android.app.ActivityThread.handleSendResult(ActivityThread.java:3531) | |
| at android.app.ActivityThread.access$1100(ActivityThread.java:156) | |
| at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1388) | |
| at android.os.Handler.dispatchMessage(Handler.java:99) | |
| at android.os.Looper.loop(Looper.java:153) | |
| at android.app.ActivityThread.main(ActivityThread.java:5299) | |
| at java.lang.reflect.Method.invokeNative(Native Method) | |
| at java.lang.reflect.Method.invoke(Method.java:511) | |
| at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) | |
| at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) | |
| at dalvik.system.NativeStart.main(Native Method) | |
| Caused by: java.lang.NullPointerException | |
| at com.example.kaushal28.locationbasedreminder.Main2Activity.onActivityResult(Main2Activity.java:185) | |
| at android.app.Activity.dispatchActivityResult(Activity.java:5371) | |
| at android.app.ActivityThread.deliverResults(ActivityThread.java:3484) | |
| at android.app.ActivityThread.handleSendResult(ActivityThread.java:3531) | |
| at android.app.ActivityThread.access$1100(ActivityThread.java:156) | |
| at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1388) | |
| at android.os.Handler.dispatchMessage(Handler.java:99) | |
| at android.os.Looper.loop(Looper.java:153) | |
| at android.app.ActivityThread.main(ActivityThread.java:5299) | |
| at java.lang.reflect.Method.invokeNative(Native Method) | |
| at java.lang.reflect.Method.invoke(Method.java:511) | |
| at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) | |
| at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) | |
| at dalvik.system.NativeStart.main(Native Method) |
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