Android - Refresh Activities from broadcast receiver

Question

Hi,

I'm currntly struggling with an Android problem whose answer is maybe simple. (I'm new in Android developing)

I have a main activity that builds a TabHost with two Tabs (each represents another Activity):

public class Main extends TabActivity {
      private TabHost mTabHost;

      public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
      mTabHost = getTabHost();     
         mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("tab1").setContent(new Intent(this, Class.forName("android.myApp.Activities.tab1"))));
         mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("tab1").setContent(new Intent(this, Class.forName("android.myApp.Activities.tab2"))));
      }

      public void showAlert() {...}

}

Now I want to receive SMS Messages with a Broadcast Listener. This is done this way:

public class SMSConnection extends BroadcastReceiver {

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

        Toast.makeText(context, str, Toast.LENGTH_SHORT).show();


        // HERE I WANT TO CALL THE showAlert() Method in Main.java
    }                         
}

The SMS Receiver works fine and shows the Toast.

Now I want to call the showAlert() Method in my Main.java Activity which would cause that the alert is shown in front of my tab view.

But how can I do that ??

As far as I know I can't receive broadcast messages within an activity - so the only thing I could do is to start a new activity out of my BroadcastReceiver. But instead I want to change my Tab View or show the alert.

Are there any possibilities to access an existing Activity from a broadcast receiver class ? Any other suggestions ?

Thanks in advance

Answer 1

hi, have you got your problem solved?

I have similar question, too. what I am thinking is to implement a IPC mechanism between the activity and the broadcast receiver.

so that when the broadcast receiver gets events, it can call the activity and now that the activity can show the toast.

any idea? BR, Henry