Passing Data from Broadcast Receiver to another Activity

Question

Hi I\'ve been having an issue with Broadcast Receivers and passing information to another activity. I\'m trying to create an application that will capture incoming SMS messa

Answer 1

1. Instantiate a BroadcastReceiver in the activity you want to get your data to, for example:

   private BroadcastReceiver mServiceReceiver = new BroadcastReceiver(){
       @Override
       public void onReceive(Context context, Intent intent)
       {
           //Extract your data - better to use constants...
           String IncomingSms=intent.getStringExtra("incomingSms");//
           String phoneNumber=intent.getStringExtra("incomingPhoneNumber");
   
       }
   };
   

2. Unregister your receiver on onPause():

   @Override
   protected void onPause() {
       super.onPause();
       try {
           if(mServiceReceiver != null){
           unregisterReceiver(mServiceReceiver);
           }
       } catch (Exception e) {
          e.printStackTrace();
       }
   }
   

3. Register it on onResume():

   protected void onResume() {
       super.onResume();
       IntentFilter filter = new IntentFilter();
       filter.addAction("android.intent.action.SmsReceiver");
       registerReceiver(mServiceReceiver , filter);
   }
   

4. Broadcast your data from the service via an Intent, for Example:

   Intent i = new Intent("android.intent.action.SmsReceiver").putExtra("incomingSms", message);
   i.putExtra("incomingPhoneNumber", phoneNumber);
   context.sendBroadcast(i);
   

and that's it! goodLuck!

Answer 2

If you have your activity named ReceiveText, then in your BroadcastReceiver, you should do the following:

Intent i = new Intent(context, ReceiveText.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.putExtra("message", message.getMessageBody());
context.startActivity(i);

Then, in your activity, you will need to getExtra as so:

Intent intent = getIntent();
String message = intent.getStringExtra("message");

And then you will use message as you need.

If you simply want the ReceiveText activity to show the message as a dialog, declare <activity android:theme="@android:style/Theme.Dialog" /> in your manifest for ReceiveText and then set the message to a textview in the activity.

Let me know if I need to add anything else.