Method of opening speaker by default for Android call
- 2021-10-15 11:29:11
- OfStack
When making a phone call, if you want to use the speaker for audio output by default when the phone is connected, that is, turn on hands-free. The specific method is to make the following modifications in the InCallService file.
Document: frameworks-base/telecomm/java/android/telecom/InCallService. java
Add oncreate method and listener for phone status monitoring.
@Override
public void onCreate() {
super.onCreate();
MyPhoneStateListener phonehoneStateListener=new MyPhoneStateListener();
TelephonyManager mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
mTelephonyManager.listen(phonehoneStateListener,PhoneStateListener.LISTEN_CALL_STATE);
}
Increase destruction incidents
@Override
public void onDestroy() {
super.onDestroy();
}
Adds the definition of the event.
private class MyPhoneStateListener extends PhoneStateListener{
@Override
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
setAudioRoute(CallAudioState.ROUTE_EARPIECE);
break;
case TelephonyManager.CALL_STATE_RINGING:
setAudioRoute(CallAudioState.ROUTE_SPEAKER);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
setAudioRoute(CallAudioState.ROUTE_SPEAKER);
default:
break;
}
super.onCallStateChanged(state, incomingNumber);
}
}
If it is MTK platform, you can open the following macro, and you can also achieve the desired effect
MTK_TB_APP_CALL_FORCE_SPEAKER_ON = yes
Android handset handset and speaker switching
AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
private void setSpeakerphoneOn(boolean on) {
if(on) {
audioManager.setSpeakerphoneOn(true);
} else {
audioManager.setSpeakerphoneOn(false);// Turn off the speaker
audioManager.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_EARPIECE, AudioManager.ROUTE_ALL);
setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);
// Set the sound to Earpiece (The receiver) comes out and is set to be on call
audioManager.setMode(AudioManager.MODE_IN_CALL);
}
}