Develop Reference

Implicit Broadcast Reciever isn't calling

I searched the web for alot of time and I don't understand why my custom broadcast
isn't working.
<receiver
android:name=".myservice.MyReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
<action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
<action android:name="android.intent.action.BATTERY_CHANGED"/>
<action android:name="android.intent.action.SCREEN_ON" />
<action android:name="android.intent.action.SCREEN_OFF" />
</intent-filter>
</receiver>
I don't it not recieve when I reconnet and disconnect the charger.
I did this for making thing simpale
public class MyReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context,"Battery", Toast.LENGTH_SHORT).show();
Log.i("Recive", "Yes");
}
}

From docs:
ACTION_BATTERY_CHANGED
Broadcast Action: This is a sticky broadcast containing the charging state, level, and other information about the battery. See BatteryManager for documentation on the contents of the Intent.
You cannot receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver(). See ACTION_BATTERY_LOW, ACTION_BATTERY_OKAY, ACTION_POWER_CONNECTED, and ACTION_POWER_DISCONNECTED for distinct battery-related broadcasts that are sent and can be received through manifest receivers
So, you cannot use this BroadcastReceiver decalred in Manifest, only registering explicitly from your context.
Also, your power connection BroadcastReceiver seems correct. Try to separate it into another BroadcastReceiver, maybe action ACTION_BATTERY_CHANGED is interfering with other actions.
This is my declared BroadcastReceiver which I use and it's working in my app.
<receiver android:name=".PowerConnectionBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
<action android:name="android.intent.action.ACTION_POWER_DISCONNECTED"/>
</intent-filter>
</receiver>
PowerConnectionBroadcastReceiver
public class PowerConnectionBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = "PowerRcvr";
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_POWER_CONNECTED)) {
Log.d(TAG, "Device is charging");
} else if (action.equals(Intent.ACTION_POWER_DISCONNECTED)) {
Log.d(TAG, "Device is NOT charging");
} else {
Log.d(TAG, "Unable to check if device is charging or not");
}
}
}
NOTE: This code is working on Android 8 with targetSdkVersion 25 or lower.
In targetSdkVersion 26 or higher most of BroadcastReceivers doesn't work through Manifest due to background limitations. Here are documentation (thanks to Pawel) about that. So your IntentFilters wont work. To keep it working you can download your targetSdkVersion to 25 or lower.

Android onReceive in BroadcastReceiver not working

I added a receiver to listen when app is installed. But it is not working. Here is my code in AndroidManifest.xml
<receiver android:enabled="true"
android:exported="true"
android:name="com.bsp.iqtest.reiceiver.IQTestReceiver">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.PACKAGE_REPLACED" />
<data android:scheme="package"/>
</intent-filter>
</receiver>
Here is my code in MainActivity (launcher activity) , function onCreate.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
IQTestReceiver br = new IQTestReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
intentFilter.addAction(Intent.ACTION_PACKAGE_REPLACED);
intentFilter.addDataScheme("package");
registerReceiver(br, intentFilter);
}
Here is my code in IQTestReceiver (this class is written in other file)
public class IQTestReceiver extends BroadcastReceiver {
public IQTestReceiver() {
}
#Override
public void onReceive(Context context, Intent intent) {
String packageName=intent.getData().getEncodedSchemeSpecificPart();
Log.e("HELLO",packageName);
}
}
I set a breakpoint in onReceive function , but it doesn't run when i debug.
Thanks for your helping.

You can not receive PACKAGE_ADDED or PACKAGE_REPLACED for your own app, if that is what you're trying.
"Broadcast Action: A new application package has been installed on the device. The data contains the name of the package. Note that the newly installed package does not receive this broadcast."
See http://developer.android.com/reference/android/content/Intent.html

set your broadcasrt in manifest like this
<receiver
android:name=".IQTestReceiver"
android:exported="true"
android:enabled="true">
<intent-filter>
<action android:name="check_values"/>
</intent-filter>
</receiver>
and send the broadcast like this.....Intent it1=new Intent(Intent.ACTION_USER_PRESENT);
it1.setAction("check_values");
it1.putExtra("data_key1",message);
sendBroadcast(it1);
and in on receive would be like this....
#Override
public void onReceive(Context context, Intent intent)
{
data1=intent.getStringExtra("data_key1");
System.out.println("ffffff11" + data1);
}

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"

BroadcastReceiver for incoming calls?

I want a BroadcastReceiver for incoming calls.
I have searched about this on Stackoverflow and have read the answers but it does not log when Android device starts ringing. Here is my code -
public class Mybrd extends BroadcastReceiver {
#Override public void onReceive(Context context, Intent intent) {
Log.i("LOG", "LOG ME");
}
}
manifest:
<receiver android:name=".Mybrd">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>

Check you have register receiver correctly in manifest file.Please register recevier with fully qualified package name if it is not in the root package.

public void onReceive(Context context, Intent intent) {
String phoneState =intent.getStringExtra(TelephonyManager.EXTRA_STATE);
if (phoneState.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
Log.i("LOG", "LOG ME");}}
Try using the above code. Add permission
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

Android - Boot Receiver Error

So I have a boot receiver that is supposed to call an intent service but the receiver isn't registering at all.
Manifest file -
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiver android:name=".ClockReciever">
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
ClockReceiver.java
public class ClockReceiver extends BroadcastReceiver {
private final String TAG = "ClockReciever";
#Override
public void onReceive(Context context, Intent intent) {
Log.d(TAG,"onRecive");
context.startService(new Intent(context, RefreshIntentService.class));
}
}
I think this is correct, but according to my logcat the ClockReciever is never called and the program crashes with a "Unable to instantiate receiver" error.
Any suggestions? Thank you

Here you have a typo
<receiver android:name=".ClockReciever">
Should be ClockReceiver, i.e. same as your class.
Cheers!