Send data from activity to fragment in Android

Question

I have two classes. First is activity, second is a fragment where I have some EditText. In activity I have a subclass with async-task and in method doInBa

Answer 1

This answer may be too late. but it will be useful for future readers.

I have some criteria. I have coded for pick the file from intent. and selected file to be passed to particular fragment for further process. i have many fragments having the functionality of File picking. at the time , every time checking the condition and get the fragment and pass the value is quite disgusting. so , i have decided to pass the value using interface.

Step 1: Create the interface on Main Activity.

   public interface SelectedBundle {
    void onBundleSelect(Bundle bundle);
   }

Step 2: Create the SelectedBundle reference on the Same Activity

   SelectedBundle selectedBundle;

Step 3: create the Method in the Same Activity

   public void setOnBundleSelected(SelectedBundle selectedBundle) {
       this.selectedBundle = selectedBundle;
   }

Step 4: Need to initialise the SelectedBundle reference which are all fragment need filepicker functionality.You place this code on your fragment onCreateView(..) method

    ((MainActivity)getActivity()).setOnBundleSelected(new MainActivity.SelectedBundle() {
          @Override
         public void onBundleSelect(Bundle bundle) {
            updateList(bundle);
        }
     });

Step 5: My case, i need to pass the image Uri from HomeActivity to fragment. So, i used this functionality on onActivityResult method.

onActivityResult from the MainActivity, pass the values to the fragments using interface.

Note: Your case may be different. you can call it from any where from your HomeActivity.

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent  data) {
       selectedBundle.onBundleSelect(bundle);
  }

Thats all. Implement every fragment you needed on the FragmentClass. You are great. you have done. WOW...