How to make a phone call in android and come back to my activity when the call is done?

Question

I am launching an activity to make a phone call, but when I pressed the \'end call\' button, it does not go back to my activity. Can you please tell me how can I launch a c

Answer 1

Steps:

1)Add the required permissions in the Manifest.xml file.

2)Create a listener for the phone state changes.

public class EndCallListener extends PhoneStateListener {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
    if(TelephonyManager.CALL_STATE_RINGING == state) {
    }
    if(TelephonyManager.CALL_STATE_OFFHOOK == state) {
        //wait for phone to go offhook (probably set a boolean flag) so you know your app initiated the call.
    }
    if(TelephonyManager.CALL_STATE_IDLE == state) {
        //when this state occurs, and your flag is set, restart your app
    Intent i = context.getPackageManager().getLaunchIntentForPackage(
                            context.getPackageName());
    //For resuming the application from the previous state
    i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);

    //Uncomment the following if you want to restart the application instead of bring to front.
    //i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    context.startActivity(i);
    }
}
}

3)Initialize the listener in your OnCreate

EndCallListener callListener = new EndCallListener();
TelephonyManager mTM = (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
mTM.listen(callListener, PhoneStateListener.LISTEN_CALL_STATE);

but if you want to resume your application last state or to bring it back from the back stack, then replace FLAG_ACTIVITY_CLEAR_TOP with FLAG_ACTIVITY_SINGLE_TOP

Reference this Answer