user8430 user8430 - 1 month ago 16
Android Question

How to turn on speaker for incoming call programmatically in Android L?

I want to accept an incoming call using answering phone's GUI (Phone's GUI) of my phone in Android 5.0. I found a way that needs to make an activity which use to send some action to open the Phone's GUI. I was successful to turn on the Phone's GUI for an incoming call. The issue is how can I turn on the speaker for the Phone's GUI. I tried the code but it does not turn on. Could you help me to solve that issue in Android L

audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
audioManager.setMode(AudioManager.MODE_IN_CALL);
if (!audioManager.isSpeakerphoneOn())
audioManager.setSpeakerphoneOn(true);
audioManager.setMode(AudioManager.MODE_NORMAL);


Manifest

<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />


Besides, do we have more shoter way to open accept a incoming call using answering phone's intent. My way is so long because it use an Activity.

This is my full class code

public class AcceptCallActivity extends Activity {

private static final String MANUFACTURER_HTC = "HTC";
private KeyguardManager keyguardManager;
private AudioManager audioManager;
private CallStateReceiver callStateReceiver;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
}

@Override
protected void onResume() {
super.onResume();
registerCallStateReceiver();
updateWindowFlags();
acceptCall();
}

@Override
protected void onPause() {
super.onPause();

if (callStateReceiver != null) {
unregisterReceiver(callStateReceiver);
callStateReceiver = null;
}
}

private void registerCallStateReceiver() {
callStateReceiver = new CallStateReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
registerReceiver(callStateReceiver, intentFilter);
}

private void updateWindowFlags() {
if (keyguardManager.inKeyguardRestrictedInputMode()) {
getWindow().addFlags(
WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON |
WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
} else {
getWindow().clearFlags(
WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
}
}

private void acceptCall() {

// for HTC devices we need to broadcast a connected headset
boolean broadcastConnected = MANUFACTURER_HTC.equalsIgnoreCase(Build.MANUFACTURER)
&& !audioManager.isWiredHeadsetOn();

if (broadcastConnected) {
broadcastHeadsetConnected(false);
}

try {
try {
Log.d("AnswerCall","execute input keycode headset hook");
//Turn on speaker
audioManager.setMode(AudioManager.MODE_IN_CALL);
if (!audioManager.isSpeakerphoneOn())
audioManager.setSpeakerphoneOn(true);
audioManager.setMode(AudioManager.MODE_NORMAL);
Runtime.getRuntime().exec("input keyevent " +
Integer.toString(KeyEvent.KEYCODE_HEADSETHOOK));

} catch (IOException e) {
// Runtime.exec(String) had an I/O problem, try to fall back
Log.d("AnswerCall","send keycode headset hook intents");
String enforcedPerm = "android.permission.CALL_PRIVILEGED";
Intent btnDown = new Intent(Intent.ACTION_MEDIA_BUTTON).putExtra(
Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_HEADSETHOOK));
Intent btnUp = new Intent(Intent.ACTION_MEDIA_BUTTON).putExtra(
Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP,
KeyEvent.KEYCODE_HEADSETHOOK));

sendOrderedBroadcast(btnDown, enforcedPerm);
sendOrderedBroadcast(btnUp, enforcedPerm);
}
} finally {
if (broadcastConnected) {
broadcastHeadsetConnected(false);
}
}
}

private void broadcastHeadsetConnected(boolean connected) {
Intent i = new Intent(Intent.ACTION_HEADSET_PLUG);
i.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
i.putExtra("state", connected ? 1 : 0);
i.putExtra("name", "mysms");
try {
sendOrderedBroadcast(i, null);
} catch (Exception e) {
}
}


private class CallStateReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
finish();
}
}
}

Answer

Finally, I got the solution. I put above code run inside a thread. It worked well. This is my code. Hope it can help someone

            Thread thread = new Thread() {
                @Override
                public void run() {
                    try {
                        while(true) {
                            sleep(1000);
                            audioManager.setMode(AudioManager.MODE_IN_CALL);
                            if (!audioManager.isSpeakerphoneOn())
                                audioManager.setSpeakerphoneOn(true);
                        }
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            };

            thread.start();