Receiver not registered exception error?
In my developer console people keep reporting an error that I cannot reproduce on any phone I have. One person left a message saying he gets it when they try to open the settings screen of my battery service. As you can see from the error it says that the receiver is not registered.
java.lang.RuntimeException: Unable to stop service .BatteryService@4616d688: java.lang.IllegalArgumentException: Receiver not registered: com.app.notifyme.BatteryService$BatteryNotifyReceiver@4616d9d0
at android.app.ActivityThread.handleStopService(ActivityThread.java:3164)
at android.app.ActivityThread.access$3900(ActivityThread.java:129)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2173)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:4701)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: Receiver not registered:com..BatteryService$BatteryNotifyReceiver@4616d9d0
at android.app.ActivityThread$PackageInfo.forgetReceiverDispatcher(ActivityThread.java:805)
at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:859)
at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:331)
at com.app.notifyme.BatteryService.onDestroy(BatteryService.java:128)
at android.app.ActivityThread.handleStopService(ActivityThread.java:3150)
I register is in my onCreate
@Override
public void onCreate(){
super.onCreate();
SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
filter.addAction(Intent.ACTION_POWER_CONNECTED);
filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
registerReceiver(batteryNotifyReceiver,filter);
pref.registerOnSharedPreferenceChangeListener(this);
}
Unregister in onDestroy and also with a preference listener
@Override
public void onDestroy(){
super.onDestroy();
unregisterReceiver(batteryNotifyReceiver);
}
and this is my receiver in the service
private final class BatteryNotifyReceiver extends BroadcastReceiver {
boolean connected;
@Override
public void onReceive(Context context, Intent intent) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
SharedPreferences.Editor edit = prefs.edit();
updatePreferences(prefs);
level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
if(intent.getAction().equals(Intent.ACTION_POWER_CONNECTED)){
connected = true;
}else if(intent.getAction().equals(Intent.ACTION_POWER_DISCONNECTED)){
connected = false;
}else if(intent.getAction().equals(Intent.ACTION_BATTERY_CHANGED)){
if(level < lastLevel){
if(level > 40){
edit.putBoolean("first", false).commit();
edit.putBoolean("second", false).commit();
edit.putBoolean("third", false).commit();
edit.putBoolean("fourth",false).commit();
edit.putBoolean("fifth", false).commit();
}
if(level == 40){
if(!first){
notification(context,battColor,battBlink,battVib,battSound);
edit.putBoolean("first", true).commit();
}
}else if(level == 30){
if(!second){
notification(context,battColor,battBlink,battVib,battSound);
edit.putBoolean("second", true).commit();
}
}else if(level == 20){
if(!third){
notification(context,battColor,battBlink,battVib,battSound);
edit.putBoolean("third", true).commit();
}
}else if(level == 15){
if(!fourth){
notification(context,battColor,battBlink,battVib,battSound);
edit.putBoolean("fourth", true).commit();
}
}else if(level == 5){
if(!fifth){
notification(context,battColor,battBlink,battVib,battSound);
edit.putBoolean("fifth", true).commit();
}
}
lastLevel = temp;
}
}
Intent i = new Intent(context,BatteryNotifyReceiver.class);
context.startService(i);
}
}
any idea why they would be getting that error?
The root of your problem is located here:
unregisterReceiver(batteryNotifyReceiver);
If the receiver was already unregistered (probably in the code that you didn't include in this post) or was not registered, then call to unregisterReceiver
throws IllegalArgumentException
. In your case you need to just put special try/catch for this exception and ignore it (assuming you can't or don't want to control number of times you call unregisterReceiver
on the same recevier).
Be careful, when you register by
LocalBroadcastManager.getInstance(this).registerReceiver()
you can't unregister by
unregisterReceiver()
you must use
LocalBroadcastManager.getInstance(this).unregisterReceiver()
or app will crash, log as follow:
09-30 14:00:55.458 19064-19064/com.jialan.guangdian.view E/AndroidRuntime: FATAL EXCEPTION: main Process: com.jialan.guangdian.view, PID: 19064 java.lang.RuntimeException: Unable to stop service com.google.android.exoplayer.demo.player.PlayService@141ba331: java.lang.IllegalArgumentException: Receiver not registered: com.google.android.exoplayer.demo.player.PlayService$PlayStatusReceiver@19538584 at android.app.ActivityThread.handleStopService(ActivityThread.java:2941) at android.app.ActivityThread.access$2200(ActivityThread.java:148) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1395) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5310) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696) Caused by: java.lang.IllegalArgumentException: Receiver not registered: com.google.android.exoplayer.demo.player.PlayService$PlayStatusReceiver@19538584 at android.app.LoadedApk.forgetReceiverDispatcher(LoadedApk.java:769) at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:1794) at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:510) at com.google.android.exoplayer.demo.player.PlayService.onDestroy(PlayService.java:542) at android.app.ActivityThread.handleStopService(ActivityThread.java:2924) at android.app.ActivityThread.access$2200(ActivityThread.java:148) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1395) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5310) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)
Use this code everywhere for unregisterReceiver:
if (batteryNotifyReceiver != null) {
unregisterReceiver(batteryNotifyReceiver);
batteryNotifyReceiver = null;
}
As mentioned in other answers, the exception is being thrown because each call to registerReceiver
is not being matched by exactly one call to unregisterReceiver
. Why not?
An Activity
does not always have a matching onDestroy
call for every onCreate
call. If the system runs out of memory, your app is evicted without calling onDestroy
.
The correct place to put a registerReceiver
call is in the onResume
call, and unregisterReceiver
in onPause
. This pair of calls is always matched. See the Activity lifecycle diagram for more details.
http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle
Your code would change to:
SharedPreferences mPref
IntentFilter mFilter;
@Override
public void onCreate(){
super.onCreate();
mPref = PreferenceManager.getDefaultSharedPreferences(this);
mFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
filter.addAction(Intent.ACTION_POWER_CONNECTED);
filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
}
@Override
public void onResume() {
registerReceiver(batteryNotifyReceiver,mFilter);
mPref.registerOnSharedPreferenceChangeListener(this);
}
@Override
public void onPause(){
unregisterReceiver(batteryNotifyReceiver, mFilter);
mPref.unregisterOnSharedPreferenceChangeListener(this);
}
EDIT: This is the answer for inazaruk and electrichead... I had run into a similar issue to them and found out the following...
There is a long-standing bug for this problem here: http://code.google.com/p/android/issues/detail?id=6191
Looks like it started around Android 2.1 and has been present in all of the Android 2.x releases since. I'm not sure if it is still a problem in Android 3.x or 4.x though.
Anyway, this StackOverflow post explains how to workaround the problem correctly (it doesn't look relevant by the URL but I promise it is)
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