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Android: Detect output change with ACTION_AUDIO_BECOMING_NOISY 

Improves the changes made in 57687779be by
using AudioManager.ACTION_AUDIO_BECOMING_NOISY rather than listening for
wired headset unplug events or Bluetooth headset disconnect events. This
method is more flexible, allowing the feature to work on other types of
audio output device, as well as Bluetooth devices that don't set their
device class correctly. This change also has the benefit of being more
responsive, pausing the audio before it is rerouted to the built-in
speaker.

https://developer.android.com/guide/topics/media-apps/volume-and-earphones
This commit is contained in:
Sam Bazley 2022-01-04 11:19:52 +00:00 committed by Max Kellermann
parent 3856224df9
commit 4983703375
2 changed files with 5 additions and 19 deletions
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3
android/AndroidManifest.xml
View File

@ -17,8 +17,6 @@
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<application android:allowBackup="true"
android:requestLegacyExternalStorage="true"
@ -43,7 +41,6 @@
<receiver android:name=".Receiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
<service android:name=".Main" android:process=":main"/>

21
android/src/Main.java
View File

@ -24,14 +24,13 @@ import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothClass;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.media.AudioManager;
import android.os.Build;
import android.os.IBinder;
import android.os.PowerManager;
@ -200,24 +199,14 @@ public class Main extends Service implements Runnable {
return;
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_HEADSET_PLUG);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECT_REQUESTED);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
filter.addAction(AudioManager.ACTION_AUDIO_BECOMING_NOISY);
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (!mPauseOnHeadphonesDisconnect) {
if (!mPauseOnHeadphonesDisconnect)
return;
}
if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
if (intent.hasExtra("state") && intent.getIntExtra("state", 0) == 0)
pause();
} else {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device.getBluetoothClass().hasService(BluetoothClass.Service.AUDIO))
pause();
}
if (intent.getAction() == AudioManager.ACTION_AUDIO_BECOMING_NOISY)
pause();
}
}, filter);