Here I am creating an online application that depends only on Internet.
So whenever there is a network error it must notify user. For that, I have created a BroadcastReciver that receives call when network connection gets lost(Internet).
All this works perfectly. Now what I need is that I have to call a method of Activity from this Broadcast Receiver, where I have created an Alert Dialogue.
I have read many answers on stack-overflow.com that I can declare that method static and call by using only Activity name,
e.g MyActivityName.myMethod()
But I can't declare my method static, because I am using Alert Dialogue there and it shows me error on line,
AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);
that Cannot use this in a static context.
So, how can I call a method of Activity(must not static and without starting that activity) from a Broadcast Receiver ?
And can I get Activity(or fragment) name from Broadcast Receiver which is currently running?
try this code :
your broadcastreceiver class for internet lost class :
public class InternetLostReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
context.sendBroadcast(new Intent("INTERNET_LOST"));
}
}
in your activity add this for calling broadcast:
public class TestActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
registerReceiver(broadcastReceiver, new IntentFilter("INTERNET_LOST"));
}
BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// internet lost alert dialog method call from here...
}
};
@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(broadcastReceiver);
}
}