해결했네요. 코드는 아래 롤리팝에서 전화받으실때 사용하세용.
new Thread(new Runnable() {
@Override
public void run() {
try {
Runtime.getRuntime().exec("input keyevent " + KeyEvent.KEYCODE_HEADSETHOOK);
} catch (Throwable t) {
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));
mContext.sendOrderedBroadcast(btnDown, enforcedPerm);
mContext.sendOrderedBroadcast(btnUp, enforcedPerm);
}
}
}).start();