The following snippet, called from my implementation of onOptionsItemSelected()
, works nicely to carry the user from my app to a mail client with email address, subject and body pre-filled. I'm using this as a simple way to let the user give me feedback.
String uriText =
"mailto:" + emailAddress +
"?subject=" + subject +
"&body=" + body;
Intent emailIntent = new Intent(Intent.ACTION_SENDTO, Uri.parse(uriText));
startActivity(Intent.createChooser(emailIntent, "Pick an email app:"));
When the mail app opens (on my Nexus S with Android 4.0.4), LogCat outputs the following, and I can't figure out why; Google and SO searches for createChooser unregisterReceiver seem fruitless, and I can't find many examples of createChooser()
that also call unregisterReceiver()
in a way that helps this situation.
04-08 21:26:19.094: E/ActivityThread(27894): Activity com.android.internal.app.ChooserActivity has leaked IntentReceiver com.android.internal.app.ResolverActivity$1@4150aac8 that was originally registered here. Are you missing a call to unregisterReceiver()?
04-08 21:26:19.094: E/ActivityThread(27894): android.app.IntentReceiverLeaked: Activity com.android.internal.app.ChooserActivity has leaked IntentReceiver com.android.internal.app.ResolverActivity$1@4150aac8 that was originally registered here. Are you missing a call to unregisterReceiver()?
04-08 21:26:19.094: E/ActivityThread(27894): at android.app.LoadedApk$ReceiverDispatcher.(LoadedApk.java:763)
This feels like an Android bug because my own code doesn't call registerReceiver()
, so why is Android complaining that I need to call unregisterReceiver()
?
The system will always present the chooser dialog even if the user has chosen a default one. If your intent created by Intent. createChooser doesn't match any activity, the system will still present a dialog with the specified title and an error message No application can perform this action .
Android BroadcastReceiver is a dormant component of android that listens to system-wide broadcast events or intents. When any of these events occur it brings the application into action by either creating a status bar notification or performing a task.
Intent intent = getIntent(); String message = intent. getStringExtra("message"); And then you will use message as you need. If you simply want the ReceiveText activity to show the message as a dialog, declare <activity android:theme="@android:style/Theme.
An IntentFilter specifies the types of intents to which an activity, service, or broadcast receiver can respond to by declaring the capabilities of a component. BroadcastReceiver does not allows an app to receive video streams from live media sources.
I see this as well on my Galaxy Nexus with 4.0.4, but only if there's only one option and the chooser doesn't appear.
This is a bug in Android source - not much you can do about it. Their ResolverActivity registers a BroadcastReceiver, but doesn't always unregister it.
More detail:
Intent.createChooser() will start a ResolverActivity. In onCreate(), the activity calls
mPackageMonitor.register(this, false);
mPackageMonitor is a BroadcastReceiver and within register()
it registers itself on the activity. Normally, the receiver is unregistered in onStop()
. However, later in onCreate()
the code checks how many options the user can choose from. If there's only one it calls finish()
. Since finish()
is called in onCreate()
the other lifecycle methods are never called and it jumps straight to onDestroy()
- leaking the receiver.
I didn't see a bug for this in the Android issues database, so I created one.
For more info you can see this in code:
As a side note, Google uses email as an example of when you wouldn't want to use a chooser so you may consider just launching the intent normally. See the javadocs for Intent#ACTION_CHOOSER.
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