Develop Reference

Why MediaPlayer keeps playing when app is closed by the user?

I've built a radio app which plays live music from a stream with the help of MediaPlayer.
The problem started when I created a service which job is to execute a block of code when app is closed by the user(Its job is to delete the notification). In this service I am using startForeground() method in order to make it as a foreground service and therefore keep it alive as long as the app runs (because if I don't, the OS will kill it in 1 minute).
But the problem now is that when the user closes the app the MediaPlayer keeps playing. My app didn't have this behavior before adding the startForeground() method in the service.
I don't know if this would be helpful but if I add a System.exit(0) in the onTaskRemoved() method when app is closed by the user music stops and I get a notification from OS which says that my app is consuming battery.
Does anyone know why my application has this peculiar behavior? Why the application process isn't killed??
public class OnClearFromRecentService extends Service {
private static final String TAG = "onClearFromRecentServic";
private NotificationManagerCompat mNotificationManagerCompat;
#Override
public void onCreate() {
super.onCreate();
mNotificationManagerCompat = NotificationManagerCompat.from(getApplicationContext());
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(TAG, "Service Started");
startForeground(2001, new NotificationCompat.Builder(getApplicationContext(), CHANNELID)
.setContentTitle("title").setContentText("contentText").build());
return START_NOT_STICKY;
}
#Override
public void onDestroy() {
super.onDestroy();
Log.d(TAG, "Service Destroyed");
}
#Override
public void onTaskRemoved(Intent rootIntent) {
//Put code here which will be executed when app is closed from user.
Log.d(TAG, "onTaskRemoved was executed ");
mNotificationManagerCompat.cancelAll();
stopSelf();
}
}
Manifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nikolouts.kwnstantinos.plutoradio">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:name=".App"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<activity
android:name=".MainActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".AboutActivity"
android:screenOrientation="portrait" />
<activity
android:name=".SplashScreenActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="preloaded_fonts"
android:resource="#array/preloaded_fonts" />
<receiver android:name=".MainActivity$NotificationReceiver" />
<activity android:name=".ChatActivity"/>
<service android:name=".OnClearFromRecentService" android:stopWithTask="false" />
</application>
</manifest>

You have in your manifest 'stopWithTask="false"'. This tells Android not to stop your Service when the user swipes the app from the list of recent tasks. Set this to "true"

Android broadcast receiver not running Service on RECEIVE_BOOT_COMPLETED

I am trying to create an Android app that uses the pedometer. Currently having trouble getting the service to start up when the user restarts/turns their phone on and off. I am using 5.1, and testing has been done on a simulator. I am not sure if it is working since the logs have not been appearing in the console.
Any help is much appreciated!
App Manifest Class:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="app.apphub.devon.walkingquest">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".WalkingQuestSplashScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".BootReceiver" android:exported="true" android:enabled="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filtering>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filtering>
</receiver>
<service android:name=".StepCounterSensorRegister" android:enabled="true" android:exported="true"/>
</application>
</manifest>
Boot Receiver Class:
public class BootReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
Log.i("BROADCAST", "WALKING_QUEST_BOOT");
Intent _intent = new Intent("app.apphub.devon.walkingquest.StepCounterSensorRegister");
intent.setClass(context, StepCounterSensorRegister.class);
context.startService(_intent);
//context.startService(_intent);
//Toast.makeText(context,"Airplane mode on",Toast.LENGTH_LONG).show();
}
else {
Log.i("FAIL","BROADCAST FAILED");
}
}
StepCounterSensorRegister Class:
public class StepCounterSensorRegister extends Service implements SensorEventListener {
SensorManager sensorManager;
Sensor sensor;
long globalSteps;
boolean flag = false;
#Override
public void onCreate(){
}
public int onStartCommand(Intent intent, int flags, int startId) {
//Must run in background thread
Log.i("START","STEP_COUNTER_STARTED");
registerSensor(sensorManager.SENSOR_DELAY_UI);
return START_STICKY;
}
public void onSensorChanged(SensorEvent event) {
if(!flag){
}
if(event.sensor.getType() == Sensor.TYPE_STEP_COUNTER){
Log.i("STEPS DETECTED",""+globalSteps);
globalSteps++;
}
}
public boolean registerSensor(int accuracy) {
sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
try {
sensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
}catch (Exception e){
Log.i("ERROR", e.getMessage());
}
if(sensor == null) {
Log.i("FAILED","Sensor returned null");
return false;
}
else {
Log.i("SUCCESS", "Successfully registered sensor");
sensorManager.registerListener(this, sensor, accuracy);
return true;
}
}

Two things I see is that you declared something wrong in your manifest:
<receiver android:name=".BootReceiver" android:exported="true" android:enabled="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filtering>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filtering>
</receiver>
intent-filtering doesn´t exist, it is intent-filter
the permissions android:permission="android.permission.RECEIVE_BOOT_COMPLETED" is misplaced here, don´t put it inside receiver tag. You have already defined it above.
And be sure you set the correct filter in your Logcat, you are using two different tags "BROADCAST" and "FAIL", maybe also this is going wrong.

Boot Complete Broadcast not Working

I am trying to start an activity when am restart my phone then its open app or show me toast when booting is complete
class MyReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED)) {
Intent serviceIntent = new Intent(context, MyIntentService.class);
context.startService(serviceIntent);
}
}
}
this is my Broadcaste receiver Code
class MyIntentService extends Service {
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate() {
super.onCreate();
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
// do something when the service is created
}
}
This is my service Code.
Manifest
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<receiver
android:name=".MyReceiver"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service android:name=".MyIntentService"></service>
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
am trying lots of diffrent code but no one work for me so can anyone help me to correct this code

Your BroadcastReceiver will never get called because you have this in the manifest entry for it:
android:exported="false"
Remove that.
NOTE: You also need to make sure that your app is started at least once manually after installing it on the phone. Otherwise your BroadcastReceiver will NOT get the BOOT_COMPLETE Intent.
NOTE: Also, using Toast as a debugging aid isn't a very good idea. You should write messages to the logcat and use that to determine if your Service is getting started, etc. Toast is not reliable as a debugging tool.

Add this in BroadcastReceiver class
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent pushIntent = new Intent(context, SyncData.class);
context.startService(pushIntent);
Log.e("BroadCast Received", "ON BOOT COMPLETE");
}
}
and remove this two lines android:enabled="true"
android:exported="false"

Service doesnt start

in the below code i am trying to start a service as shown. but at run time
serviceCtrl.isMyServiceRunning()
returns false and the toast doesnt show up despite the service is added to the manifest file.
i am starting the service wrongly?! why the service does not start
code:
if (mIsBonded) {
mSB.append("Pairing Completed" + "\n");
Intent intSPPService = new Intent(getApplicationContext(), SPPService.class);
intSPPService.putExtra("key", "starting SPP Service");
startService(intSPPService);
ServiceCtrl serviceCtrl = new ServiceCtrl(getApplicationContext(), ActMain.class);
if (serviceCtrl.isMyServiceRunning()) {
Toast.makeText(getApplicationContext(), "Starting SPP Service", Toast.LENGTH_SHORT).show();
}
//mATRFCConn = new ATRFCConn();
//mATRFCConn.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
mSB.append("Pairing Failed" + "\n");
}
...
...
...
public boolean isMyServiceRunning() {
ActivityManager manager = (ActivityManager) this.mCtx.getSystemService(this.mCtx.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (this.mClass.getName().equals(service.service.getClassName())) {
return true;
}
}
return false;
}
service:
public class SPPService extends Service {
private final String TAG = this.getClass().getSimpleName();
final static String SPP_SERVICE_ACTION = "SPP_ACTION";
#Override
public void onCreate() {
Log.w(TAG, "onCreate");
super.onCreate();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.w(TAG, "onStartCommand");
String str = intent.getStringExtra("key");
Log.v(TAG, "Act->Service : " + str);
return Service.START_NOT_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
}
Update
at run time i receive
W/ActivityManager: Unable to start service Intent {
cmp=com.example.com.myapplication/com.example.com.servicebt_01.SPPService
(has extras) } U=0: not found
manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.com.servicebt_01" >
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme" >
<activity android:name=".ActMain" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<service
android:enabled="true"
android:name=".SPPService"
android:icon="#mipmap/ic_launcher"
android:label="#string/service_name"
>
</service>

Please check this answer :
Unable to start service Intent
It says you have not given the name of the service in the manifest correctly. Please verify it.
Try to enter the Service name along with the entire package name in which it is present.

Your service name in manifest is error,not
<service
android:name="SPPService"
android:icon="#mipmap/ic_launcher"
android:label="#string/service_name"
>
</service>
If your SSPService is located in your application package,you can specify it like this:
<service
android:name=".SPPService"
android:icon="#mipmap/ic_launcher"
android:label="#string/service_name"
>
</service>
If not,you should specify its full path.

Error when trying initialize a service ( which extends IntentService class)

I try to play with Service in Android, my application contain an Activity with a button so that it can do action when I press it.
The core component is the ExtractingURLService , which extends IntentService framework class.
I have overrided the onHandleIntent() method, so that it can handle intent passed to it properly.
Code:
public class ExtractingURLService extends IntentService {
private static final String TAG = "ExtractingURLService";
public ExtractingURLService(String name) {
super("ExtractingURLService");
}
#Override
protected void onHandleIntent(Intent intent) {
// do something here !
}
}
}
The Android Manifest file is :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="example.service.urlextraction"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.INTERNET"/>
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name=".ServiceExample02Activity"
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=".ExtractingURLService" android:enabled="true"></service>
</application>
</manifest>
In my only Activity class, I call the service by using:
Intent startServiceIntent = new Intent(this, ExtractingURLService.class);
startService(startServiceIntent);
That's all my work, but when deploy, the runtime error I received was:
04-09 16:24:05.751: ERROR/AndroidRuntime(1078): Caused by:
java.lang.InstantiationException:
example.service.urlextraction.ExtractingURLService
What I should do with that ??

Add full path of Service
<service android:name="com.foo.services.ExtractingURLService" android:enabled="true"></service>
Intent Service should look like this:
package com.foo.services;
import android.app.IntentService;
import android.content.Intent;
public class ExtractingURLService extends IntentService {
private static final String TAG = "ExtractingURLService";
public ExtractingURLService() {
super("ExtractingURLService");
}
#Override
protected void onHandleIntent(Intent intent) {
// do something here !
}
}

You can add try and catch block to avoid crash.Its work for me
try {
Intent intent = new Intent(DashboardActivity.this, MyService.class);
startService(intent);
}catch (IllegalStateException e){
}catch (Exception ee){
}