CODEWITHSUNDEEP
android
ashok
ashok

Reputation: 11

How to Call an activity method from a BroadcastReceiver?

I am currently developing an app, I need to call an activity method from BroadcastReceiver.

My app is to when the user getting a call Broadcast receiver find that and send a message to that particular number.

I am able to get that no, but I want to send a message to that number, for this sending sms I created an activity in side sending sms method is there..

How do I call that particular method from my BroadcastReceiver.

Upvotes: 1

Views: 3536

Answers (2)

Rohit Singh
Rohit Singh

Reputation: 18222

You can create a Callback using an interface for calling that the activity method from BroadcastReceiver

interface MyCallback{

      public void doStuff();

}

Provide the CallBack in the BroadcastReceiver 

public class MyBroadcastReceiver extends BroadcastReceiver{

   private MyCallback callback;

   public MyBroadcastReceiver(MyCallback callback){

       this.callback = callback;          //<-- Initialse it

   } 

   @Override
   public void onReceive(Context context, Intent intent) {

       callback.doStuff();                //<--- Invoke callback method
   }

}

Now implement the Callback in your Activity and override the method

MyActvity extends AppcompatActivity implements MyCallback {

   // Your Activity related code //
   // new MyBroadcastReceiver(this);    <-- this is how you create instance

   private void sendSMS(){
     // your logic to send SMS
   } 


   @Override 
   public void doStuff(){
     sendSMS();          //<--- Call the method to show alert dialog
   }

}

You can read the advantage of using this approach here in detail

Upvotes: 0

Vineet Shukla
Vineet Shukla

Reputation: 24031

You need to make that method static and public inside your activity.You can call that method like this:

ActivityName.mehtodName();

It will be much better if you put that method in your util class and call it from there.

Upvotes: 1

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