Develop Reference

Torch app trouble

UPDATE: I have edited my question to include the working code. I have solved my issue. See my latest/last post.
UPDATE2: Code has been updated as of 2018-06-08. Here is the repo:
https://github.com/amboxer21/FlashLightApp
NOTE: I compile from the Linux command line with ant.
I have a torch app I am trying to get working but I am having no luck. Can any one point out what I am missing and explain? I would really appreciate it!
I can compile with no issues. I can push with no issues. I can toggle the on and off button with no issues. I can see this with the toasts I have put in place. Basically all functions seem to get called properly but the LED light on the back camera just does not come on. I am using a Nexus 6 on 5.1.1 and developing on Linux. Also I figure its worth mentioning here but I am able to compile a 3rd party torch app on my Linux box and the torch woks.
Main Activity:
package com.flash.light;
import android.util.Log;
import android.os.Bundle;
import android.os.IBinder;
import android.os.Message;
import android.os.Handler;
import android.os.Messenger;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceView;
import android.view.MenuInflater;
import android.view.SurfaceHolder;
import android.view.View.OnClickListener;
import android.widget.Toast;
import android.widget.Button;
import android.widget.ToggleButton;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.Intent;
import android.content.Context;
import android.content.ComponentName;
import android.content.ServiceConnection;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.support.v7.view.ActionMode;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatDelegate;
import android.support.v7.app.AppCompatCallback;
public class FlashLight extends Activity implements SurfaceHolder.Callback, AppCompatCallback {
private static final String TAG = "FlashLight FlashLight";
private Camera mCam;
private Parameters params;
private ToggleButton flashLight;
private SurfaceView surfaceView;
private Messenger mService = null;
private SurfaceHolder surfaceHolder;
private boolean mBound;
private boolean hasCameraFlash;
private boolean isBound = false;
private boolean isFlashOn = false;
private static long backPressedTime = 0;
private static Message mtn;
private static Message msg;
private static AppCompatDelegate delegate;
private static ComponentName componentName;
private static PackageManager packageManager;
public void isServiceBound() {
isBound = getApplicationContext().bindService(new Intent(getApplicationContext(),
FlashLightService.class), mConnection, Context.BIND_AUTO_CREATE );
if(isBound) {
getApplicationContext().unbindService(mConnection);
}
}
public void toast(String text) {
Toast.makeText(getApplicationContext(), text, Toast.LENGTH_LONG).show();
}
private ServiceConnection mConnection = new ServiceConnection() {
#Override
public void onServiceDisconnected(ComponentName name) {
mService = null;
mBound = false;
}
#Override
public void onServiceConnected(ComponentName name, IBinder service) {
mService = new Messenger(service);
mBound = true;
}
};
#Override
public void onBackPressed() {
long mTime = System.currentTimeMillis();
if(mTime - backPressedTime > 2000) {
backPressedTime = mTime;
Toast.makeText(this, "Press back again to close app.", Toast.LENGTH_SHORT).show();
}
else {
finish();
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return super.onCreateOptionsMenu(menu);
}
private AppCompatDelegate getDelegate() {
if (delegate == null) {
delegate = AppCompatDelegate.create(this, this);
}
return delegate;
}
public boolean supportRequestWindowFeature(int featureId) {
return getDelegate().requestWindowFeature(featureId);
}
public void invalidateOptionsMenu() {
getDelegate().invalidateOptionsMenu();
}
#Override
public void onSupportActionModeStarted(ActionMode mode) { }
#Override
public void onSupportActionModeFinished(ActionMode mode) { }
public ActionMode startSupportActionMode(ActionMode.Callback callback) {
return getDelegate().startSupportActionMode(callback);
}
#Nullable
#Override
public ActionMode onWindowStartingSupportActionMode(ActionMode.Callback callback) {
return null;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
return true;
case R.id.configureMenu:
Intent configureIntent = new Intent(getApplicationContext(), Configure.class);
startActivityForResult(configureIntent, 0);
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onDestroy() {
super.onDestroy();
try {
isServiceBound();
if(mCam != null) {
mCam.stopPreview();
mCam.release();
}
}
catch(Exception e) {
e.printStackTrace();
}
}
#Override
protected void onSaveInstanceState(Bundle savedInstanceState) {
savedInstanceState.putBoolean("isFlashOn", isFlashOn);
super.onSaveInstanceState(savedInstanceState);
}
#Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
isFlashOn = savedInstanceState.getBoolean("isFlashOn");
}
private boolean isMyServiceRunning(Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (serviceClass.getName().equals(service.service.getClassName())) {
return true;
}
}
return false;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
if(!isMyServiceRunning(FlashLightService.class)) {
Intent serviceIntent = new Intent(getApplicationContext(), FlashLightService.class);
startService(serviceIntent);
getApplicationContext().bindService(new Intent(getApplicationContext(), FlashLightService.class), mConnection,
Context.BIND_AUTO_CREATE);
}
delegate = AppCompatDelegate.create(this, this);
delegate.onCreate(savedInstanceState);
delegate.setContentView(R.layout.main);
Toolbar toolbar = (Toolbar) findViewById(R.id.action_toolbar);
delegate.setSupportActionBar(toolbar);
delegate.getSupportActionBar().setDisplayShowTitleEnabled(true);
if(savedInstanceState != null) {
isFlashOn = savedInstanceState.getBoolean("isFlashOn");
}
surfaceView = (SurfaceView)findViewById(R.id.preview);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(FlashLight.this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
hasCameraFlash = getApplicationContext().getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
if(!(hasCameraFlash)) {
toast("Camera does not have flash feature.");
return;
}
else {
getCamera();
}
flashLight = (ToggleButton)findViewById(R.id.flashLight);
flashLight.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
try {
if(!(isFlashOn)) {
params = mCam.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
mCam.setParameters(params);
mCam.startPreview();
isFlashOn = true;
}
else {
params = mCam.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_OFF);
mCam.setParameters(params);
mCam.stopPreview();
isFlashOn = false;
}
}
catch(Exception e) {
e.printStackTrace();
}
}
});
}
public void getCamera() throws NullPointerException {
try {
if(mCam == null) {
mCam = Camera.open();
}
}
catch(NullPointerException e) {
e.printStackTrace();
}
}
public void surfaceCreated(SurfaceHolder holder) {
try {
mCam.setPreviewDisplay(holder);
}
catch(Exception e) {
e.printStackTrace();
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { }
public void surfaceDestroyed(SurfaceHolder holder) { }
}
main.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#E8E8E8"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.support.v7.widget.Toolbar
android:background="#3F51B5"
android:id="#+id/action_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:label="#string/app_name">
</android.support.v7.widget.Toolbar>
<SurfaceView
android:id="#+id/preview"
android:layout_width="1dp"
android:layout_height="1dp"/>
<ToggleButton
android:textOn=""
android:textOff=""
android:id="#+id/flashLight"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginBottom="100dp"
android:background="#drawable/check"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.flash.light"
android:versionCode="1"
android:versionName="1.0">
<!-- PERMISSIONS -->
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.FLASHLIGHT"/>
<!-- FEATURES -->
<uses-feature android:name="android.hardware.camera"/>
<uses-feature android:name="android.hardware.touchscreen"/>
<uses-feature android:name="android.hardware.camera.flash"/>
<uses-feature android:name="android.hardware.camera.autofocus"/>
<!-- TARGET SDK VERSION -->
<uses-sdk android:minSdkVersion="21"/>
<application android:label="#string/app_name"
android:icon="#drawable/ic_launcher">
<activity android:name="FlashLight"
android:screenOrientation="portrait"
android:theme="#style/Theme.AppCompat.NoActionBar"
android:configChanges="keyboardHidden|orientation|screenSize"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<service android:name=".FlashLightService" android:enabled="true"/>
</application>
</manifest>

Turns out I needed a surfaceHolder and surfaceView in order to call the startPreview method.
Here is my working torch app via github -> https://github.com/amboxer21/FlashLightApp

Connecting Remote Service from different application in Android

I am trying to create sample application in android which could access the remote service already created in android.
Below are the code of my service, it's AIDL and sample application. Please note that I am trying to run it in android emulator.
My AIDL file
// IMyAidlInterface.aidl
package com.example.mmjoshi.binderservice;
// Declare any non-default types here with import statements
interface IMyAidlInterface {
/**
* Demonstrates some basic types that you can use as parameters
* and return values in AIDL.
*/
int findFactorialService(int x);
}
My Service file
package com.example.mmjoshi.binderservice;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;
/**
* Created by mmjoshi on 8/12/2015.
*/
public class MyService extends Service {
private final IBinder mBinder = new LocalBinder();
#Override
public IBinder onBind(Intent intent)
{
//return mBinder;
return new IMyAidlInterface.Stub(){
public int findFactorialService(int x) throws RemoteException
{
int fact =1;
for(int i=1;i<=x;i++)
{
fact = fact*i;
}
return fact;
//return 5;
}
};
}
public class LocalBinder extends Binder
{
public MyService getService()
{
return MyService.this;
}
}
/*public int findFactorial(int x)
{
int fact =1;
for(int i=1;i<=x;i++)
{
fact = fact*i;
}
return fact;
//return 5;
}*/
}
Service Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mmjoshi.binderservice" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".MyService" android:process=":remote"
android:enabled="true" android:exported="true">
<intent-filter>
<action android:name="com.example.mmjoshi.binderservice.MyService.IMyAidlInterface"></action>
</intent-filter>
</service>
</application>
</manifest>
Another application which access this service
package secondndapp.service_client;
import android.app.Activity;
import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.example.mmjoshi.binderservice.IMyAidlInterface;
public class MainActivity extends Activity implements View.OnClickListener {
EditText etValue1, etValue2;
Button bAdd;
ServiceConnection AddServiceConnection;
protected IMyAidlInterface iMyAidlInterface;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
etValue1 = (EditText)findViewById(R.id.txtinput);
bAdd = (Button)findViewById(R.id.btnCalc);
bAdd.setOnClickListener(this);
initConnection();
}
void initConnection() {
AddServiceConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName name, IBinder service) {
iMyAidlInterface = IMyAidlInterface.Stub.asInterface((IBinder) service);
Toast.makeText(getApplicationContext(),
"Service Connected", Toast.LENGTH_SHORT)
.show();
Log.d("IRemote", "Binding is done - Service connected");
}
#Override
public void onServiceDisconnected(ComponentName name) {
iMyAidlInterface = null;
Toast.makeText(getApplicationContext(), "Service Disconnected",
Toast.LENGTH_SHORT).show();
Log.d("IRemote", "Binding - Service disconnected");
}
};
if (iMyAidlInterface == null) {
Intent it = new Intent("com.example.mmjoshi.binderservice.MyService");
it.setPackage("com.example.mmjoshi");
it.setAction("com.example.mmjoshi.binderservice.MyService.IMyAidlInterface");
it.setComponent(new ComponentName("com.example.mmjoshi", "com.example.mmjoshi.binderservice.MyService"));
// binding to remote service
startService(it);
Log.d("Service-MJ","Service is going to start");
bindService(it, AddServiceConnection, Service.BIND_AUTO_CREATE);
Log.d("Service-MJ", "Service is started");
}
}
#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_main, 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;
}
return super.onOptionsItemSelected(item);
}
public void onClick(View v)
{
int num = Integer.parseInt(etValue1.getText().toString());
Toast.makeText(getApplicationContext(), "num is " + num,
Toast.LENGTH_LONG).show();
int result = 0;
try {
result = iMyAidlInterface.findFactorialService(num);
} catch (RemoteException e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), "Result" + result,Toast.LENGTH_SHORT).show();
}
}
Now, first I run the Binder Service in emulator and then I run this application in emulator.
But I am getting this error: "java.lang.NullPointerException: Attempt to invoke interface method 'int com.example.mmjoshi.binderservice.IMyAidlInterface.findFactorialService(int)' on a null object reference"
Please help me, I am stuck with this since last 2 days.
Thanks in Advance.
Maulik

Getting Cast Exception Android

I'm creating a simple note app in android. I am basically using two activity classes named as Main Page and Second Activity. I'm storing some data in the shared preferences in second activity and want to use it in my first Activity. I'm storing data in shared preferences as (String,Integer) key-pair. In my main activity class, when i'm getting the value from shared preferences as Integer and compare it with value 0,i'm getting an exception that java.lang.string can't be cast to java.lang.integer. I don't know why this exception is coming. Android studio is not giving me an exception but when i run my app, my app crashes. I have attach the code for reference.
MainActivity class:
package com.example.prateeksharma.noteballondor;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class MainPage extends ActionBarActivity {
Notes notes = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_page);
}
#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_main_page, menu);
return true;
}
#Override
protected void onResume() {
super.onResume();
SharedPreferences sharedPreferences = getSharedPreferences("com.example.prateeksharma.noteballondor", Context.MODE_PRIVATE);
//Map<String, Integer> notesMap = (Map<String, Integer>)sharedPreferences.getAll();
List<Notes> listNotes = new ArrayList<>();
Map<String, ?> prefsMap = sharedPreferences.getAll();
for (Map.Entry<String, ?> entry: prefsMap.entrySet()) {
if (entry.getValue() == 0){
notes = new Notes();
}
notes.setNoteText(entry.getKey());
listNotes.add(notes);
sharedPreferences.edit().putInt(entry.getKey(),2);
}
NotesArrayAdapter notesArrayAdapter = new NotesArrayAdapter(this,R.layout.list_layout, listNotes);
final ListView listview = (ListView) findViewById(R.id.listView);
listview.setAdapter(notesArrayAdapter);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
/**/
#Override
public void onItemClick(AdapterView<?> parent, final View view,
int position, long id) {
notes = (Notes) parent.getItemAtPosition(position);
Intent intent = new Intent(MainPage.this, SecondActivity.class);
intent.putExtra("Notes",notes);
startActivity(intent);
}
});
}
#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
switch (item.getItemId()) {
case R.id.new_link:
Intent intent = new Intent(this, SecondActivity.class);
intent.putExtra("Notes",(android.os.Parcelable)null);
startActivity(intent);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
SecondActivity Class:
package com.example.prateeksharma.noteballondor;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
public class SecondActivity extends ActionBarActivity {
public SharedPreferences sharedPreferences;
SharedPreferences.Editor edit;
Notes notes;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
sharedPreferences = getSharedPreferences("com.example.prateeksharma.noteballondor", Context.MODE_PRIVATE);
edit = sharedPreferences.edit();
}
#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_second, menu);
return true;
}
#Override
protected void onResume() {
super.onResume();
Intent intent = getIntent();
notes = (Notes)intent.getParcelableExtra("Notes");
EditText editText = (EditText) findViewById(R.id.editText);
if(notes != null){
editText.setText(notes.getNoteText());
}
else{
editText.setText(null);
}
}
#Override
protected void onStop() {
super.onStop();
getIntent().removeExtra(notes.getNoteText());
}
#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();
Intent intent = getIntent();
//noinspection SimplifiableIfStatement
switch (item.getItemId()) {
case R.id.save:
EditText editText = (EditText)findViewById(R.id.editText);
if (notes != null){
edit.putInt(String.valueOf(editText.getText()),1);
}
else{
edit.putInt(String.valueOf(editText.getText()),0);
}
edit.commit();
return true;
case R.id.delete:
if(notes != null){
edit.remove(notes.getNoteText());
edit.commit();
finish();
return true;
}
default:
return super.onOptionsItemSelected(item);
}
}
}
Notes class that I'm using:
package com.example.prateeksharma.noteballondor;
import android.os.Parcel;
import android.os.Parcelable;
/**
* Created by Dell on 02-06-2015.
*/
public class Notes implements Parcelable {
private String noteText;
public String getNoteText() {
return noteText;
}
public void setNoteText(String noteText) {
this.noteText = noteText;
}
private Notes(Parcel in) {
noteText = in.readString();
}
public Notes(){
}
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(noteText);
}
#SuppressWarnings("unused")
public static final Parcelable.Creator<Notes> CREATOR = new Parcelable.Creator<Notes>() {
#Override
public Notes createFromParcel(Parcel in) {
return new Notes(in);
}
#Override
public Notes[] newArray(int size) {
return new Notes[size];
}
};
}
Can anybody tell me why this error is coming in MainActivity class at this line
if (entry.getValue() == 0)
Thank you..

Try to replace
if ((Integer)entry.getValue() == 0){
With
If((Integer.parseInt( entry.getValue()) ==0){

How to return list item selected to parent activity - android

I'm learning android development. And I trying to do the following:
An wellcome activity, with a TextView with the following text: "Please Select"
This Textview, has an OnClick Listener setted.
My intent is, when the user click on this textview, one new activity with a listview must be opened.
This listview cointains some values like: Country 1, Country 2, Country 3 and so on;
So, when the user select one value, this value must be returned to the parent activity.
In my parent activity I have the following:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
countrySamples = (TextView)findViewById(R.id.countrySamples);
countrySamples.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ListCountrySelectedFragment whatKindOjectIsThis = new ListCountrySelectedFragment();
whatKindOjectIsThis.setListCountrySelectedActivityDelegate(new ListCountrySelectedFragment.ListCountrySelectedActivityDelegate() {
#Override
public void selectCountry(String name) {
selectItem(name);
}
});
}
});
}
[...]
public void selectItem(String name) {
int index = valuesArray.indexOf(name);
if (index != -1) {
countryButton.setText(name);
}
}
And I've created an blank fragment with a list.
And added the following code:
public static interface ListCountrySelectedActivityDelegate {
public abstract void selectCountry(String name);
}
private ListCountrySelectedActivityDelegate delegate;
[...]
But, my fragment is never started.. The true is.. I have to create a Fragment to this? Or, must by an activity? Or I'm totally wrong?
Thanks
Edited (complete code):
Login Activity:
package com.testenum_13;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import com.testenum_13.R;
import com.testenum_13.adapters.CountryAdapter;
import org.w3c.dom.Text;
import java.util.ArrayList;
import java.util.HashMap;
public class Login extends ActionBarActivity {
TextView countryButton;
private EditText codeField;
private int countryState = 0;
private ArrayList<String> countriesArray = new ArrayList<String>();
private HashMap<String, String> countriesMap = new HashMap<String, String>();
private boolean ignoreOnTextChange = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
countryButton = (TextView)findViewById(R.id.countryButton);
countryButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//Intent intent = new Intent(Login.this, CountrySelected.class);
CountrySelected fragment = new CountrySelected();
fragment.setCountrySelectActivityDelegate (new CountrySelected.CountrySelectActivityDelegate() {
#Override
public void countryWSelected(String name) {
selectCountry(name);
}
});
//startActivity(intent);
}
});
}
#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_login, 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;
}
return super.onOptionsItemSelected(item);
}
public void selectCountry(String name) {
int index = countriesArray.indexOf(name);
if (index != -1) {
ignoreOnTextChange = true;
codeField.setText(countriesMap.get(name));
countryButton.setText(name);
countryState = 0;
}
}
}
Country Activity:
package com.testenum_13;
import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.internal.widget.ActionBarOverlayLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import com.testenum_13.adapters.CountryAdapter;
import com.testenum_13.adapters.CountryAdapter.Country;
import java.util.List;
public class CountrySelected extends FragmentActivity {
public static interface CountrySelectActivityDelegate {
public abstract void countryWSelected(String name);
}
private CountryAdapter listViewAdapter;
private CountrySelectActivityDelegate delegate;
ListView countryList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_country_selected);
countryList = (ListView)findViewById(R.id.countryList);
listViewAdapter = new CountryAdapter(getBaseContext());
countryList.setAdapter(listViewAdapter);
countryList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Country country = null;
int section = listViewAdapter.getSectionForPosition(position);
int row = listViewAdapter.getPositionInSectionForPosition(position);
if (row < 0 || section < 0) {
return;
}
country = listViewAdapter.getItem(section, row);
if (position < 0) {
return;
}
if (country != null && delegate != null)
{
delegate.countryWSelected(country.name);
}
finish();
}
});
}
public void setCountrySelectActivityDelegate(CountrySelectActivityDelegate delegate) {
this.delegate = delegate;
}
#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_country_selected, 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;
}
return super.onOptionsItemSelected(item);
}
}
Thanks

You could use startActivityForResult(Intent, int) in the parent Activity and override onActivityResult() in the child activity. See this tutorial for more details on how to implent this pattern.

Bing maps on Android emulator works but not on device

I've set up the http://bingmapsandroidsdk.codeplex.com/ to try bing maps instead of google maps on Android. Because I was unable to set that up.
I'm able to run Bing maps on my emulator but I'm unable to run it on my device(Galaxy S2).
I have a wifi connection on my phone but I'm still unable to get past the load screen.
I also checked this question but it doesn't solve the problem Working on Emulator but not on the real Android device
So my code:
Manifest
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.ACCESS_GPS"></uses-permission>
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="15"/>
<application android:icon="#drawable/bingmaps_icon" android:label="#string/app_name" android:allowBackup="false">
<activity android:name=".MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="SplashActivity"></activity>
</application>
Starting Activity copied from the Bing-sdk
package org.bingmaps.app;
import java.util.HashMap;
import org.bingmaps.app.R;
import org.bingmaps.sdk.BingMapsView;
import org.bingmaps.sdk.Coordinate;
import org.bingmaps.sdk.EntityClickedListener;
import org.bingmaps.sdk.EntityLayer;
import org.bingmaps.sdk.MapLoadedListener;
import org.bingmaps.sdk.MapMovedListener;
import org.bingmaps.sdk.MapStyles;
import org.bingmaps.sdk.Pushpin;
import org.bingmaps.sdk.PushpinOptions;
import android.app.Activity;
import android.app.ProgressDialog;
import android.location.Location;
import android.location.LocationListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.ViewFlipper;
import android.widget.ZoomButton;
public class MainActivity extends Activity {
private BingMapsView bingMapsView;
private GPSManager _GPSManager;
private EntityLayer _gpsLayer;
private ProgressDialog _loadingScreen;
private Activity _baseActivity;
CharSequence[] _dataLayers;
boolean[] _dataLayerSelections;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
//OPTION Lock map orientation
setRequestedOrientation(1);
setContentView(R.layout.main);
Initialize();
}
private void Initialize()
{
_baseActivity = this;
_GPSManager = new GPSManager((Activity)this, new GPSLocationListener());
//Add more data layers here
_dataLayers = new String[] { getString(R.string.traffic)};
_dataLayerSelections = new boolean[ _dataLayers.length ];
_loadingScreen = new ProgressDialog(this);
_loadingScreen.setCancelable(false);
_loadingScreen.setMessage(this.getString(R.string.loading) + "...");
bingMapsView = (BingMapsView) findViewById(R.id.mapView);
//Create handler to switch out of Splash screen mode
final Handler viewHandler = new Handler() {
public void handleMessage(Message msg) {
((ViewFlipper) findViewById(R.id.flipper)).setDisplayedChild(1);
}
};
//Add a map loaded event handler
bingMapsView.setMapLoadedListener(new MapLoadedListener() {
public void onAvailableChecked() {
// hide splash screen and go to map
viewHandler.sendEmptyMessage(0);
//Add GPS layer
_gpsLayer = new EntityLayer(Constants.DataLayers.GPS);
bingMapsView.getLayerManager().addLayer(_gpsLayer);
UpdateGPSPin();
}
});
//Add a entity clicked event handler
bingMapsView.setEntityClickedListener(new EntityClickedListener() {
public void onAvailableChecked(String layerName, int entityId) {
HashMap<String, Object> metadata = bingMapsView.getLayerManager().GetMetadataByID(layerName, entityId);
DialogLauncher.LaunchEntityDetailsDialog(_baseActivity, metadata);
}
});
//Load the map
bingMapsView.loadMap(Constants.BingMapsKey, _GPSManager.GetCoordinate(), Constants.DefaultGPSZoomLevel, this.getString(R.string.mapCulture));
// Create zoom out button functionality
final ZoomButton zoomOutBtn = (ZoomButton) findViewById(R.id.zoomOutBtn);
zoomOutBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
bingMapsView.zoomOut();
}
});
// Create zoom button in functionality
final ZoomButton zoomInBtn = (ZoomButton) findViewById(R.id.zoomInBtn);
zoomInBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
bingMapsView.zoomIn();
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.layout.menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
//Map Mode menu items
case R.id.autoBtn:
bingMapsView.setMapStyle(MapStyles.Auto);
item.setChecked(!item.isChecked());
return true;
case R.id.roadBtn:
bingMapsView.setMapStyle(MapStyles.Road);
item.setChecked(!item.isChecked());
return true;
case R.id.aerialBtn:
bingMapsView.setMapStyle(MapStyles.Aerial);
item.setChecked(!item.isChecked());
return true;
case R.id.birdseyeBtn:
bingMapsView.setMapStyle(MapStyles.Birdseye);
item.setChecked(!item.isChecked());
return true;
//More option items
case R.id.aboutMenuBtn:
DialogLauncher.LaunchAboutDialog(this);
return true;
case R.id.layersMenuBtn:
DialogLauncher.LaunchLayersDialog(this, bingMapsView, _dataLayers, _dataLayerSelections);
return true;
case R.id.clearMapMenuBtn:
bingMapsView.getLayerManager().clearLayer(null);
//unselect all layers
for(int i=0;i<_dataLayerSelections.length;i++){
_dataLayerSelections[i] = false;
}
//re-add GPS layer
bingMapsView.getLayerManager().clearLayer(Constants.DataLayers.GPS);
UpdateGPSPin();
return true;
//GPS Menu Item
case R.id.gpsMenuBtn:
Coordinate coord = _GPSManager.GetCoordinate();
if(coord != null){
//Center on users GPS location
bingMapsView.setCenterAndZoom(coord, Constants.DefaultGPSZoomLevel);
}
return true;
//Search Menu Item
case R.id.searchMenuBtn:
DialogLauncher.LaunchSearchDialog(this, bingMapsView, loadingScreenHandler);
return true;
//Directions Menu Item
case R.id.directionsMenuBtn:
DialogLauncher.LaunchDirectionsDialog(this, bingMapsView, loadingScreenHandler);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void UpdateGPSPin(){
PushpinOptions opt = new PushpinOptions();
opt.Icon = Constants.PushpinIcons.GPS;
Pushpin p = new Pushpin(_GPSManager.GetCoordinate(), opt);
if (p.Location != null) {
_gpsLayer.clear();
_gpsLayer.add(p);
_gpsLayer.updateLayer();
}
}
#SuppressWarnings("unused")
private final MapMovedListener mapMovedListener = new MapMovedListener() {
public void onAvailableChecked() {
//OPTION Add logic to Update Layers here.
//This will update data layers when the map is moved.
}
};
/**
* Handler for loading Screen
*/
protected Handler loadingScreenHandler = new Handler() {
public void handleMessage(Message msg) {
if (msg.arg1 == 0) {
_loadingScreen.hide();
} else {
_loadingScreen.show();
}
}
};
public class GPSLocationListener implements LocationListener {
public void onLocationChanged(Location arg0) {
UpdateGPSPin();
}
public void onProviderDisabled(String arg0) {
}
public void onProviderEnabled(String arg0) {
}
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
}
}
}
ERRORS from LOGCAT: non

bing maps for android does not work for android versions 3.0 and higher