Question

I want to pause my android application when the phone receives an incoming call. After the call ends, I want my applications to resume automatically.

How would this be implemented in an Android application?

Answer 1

you have to implement a Listener for the PhoneState. I did this in a private Class:

private class PhoneCallListener extends PhoneStateListener {

    private boolean isPhoneCalling = false;

    // needed for logging
    String TAG = "PhoneCallListener";

    @Override
    public void onCallStateChanged(int state, String incomingNumber) {

        if (TelephonyManager.CALL_STATE_RINGING == state) {
            // phone ringing
            Log.i(TAG, "RINGING, number: " + incomingNumber);
        }

        if (TelephonyManager.CALL_STATE_OFFHOOK == state) {
            // active
            Log.i(TAG, "OFFHOOK");

            isPhoneCalling = true;
        }

        if (TelephonyManager.CALL_STATE_IDLE == state) {
            // run when class initial and phone call ended,
            // need detect flag from CALL_STATE_OFFHOOK
            Log.i(TAG, "IDLE");

            if (isPhoneCalling) {

                Log.i(TAG, "restart app");

                // restart call application
                Intent i = getBaseContext().getPackageManager()
                        .getLaunchIntentForPackage(
                                getBaseContext().getPackageName());
                i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                        | Intent.FLAG_ACTIVITY_CLEAR_TOP
                        | Intent.FLAG_ACTIVITY_SINGLE_TOP);
                startActivity(i);

                isPhoneCalling = false;
            }

        }


}
}

and you need to add the permission to the Manifest-File

<uses-permission android:name="android.permission.READ_PHONE_STATE" />