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I am doing task in which I need to show a dialog after clicking on EditText. In that dialog I show contents with RadioButtons using RecyclerView.

Now, what I want to do is, after selecting RadioButton (content which is in the RecyclerView) from dialog, it should return value of that content and then dialog should be dismissed.

To generate a dialog I've used a DialogFragment.

As I'm new in android development, I am totally confused and unable to find the solution.

Marko
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Sanket Ranaware
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1 Answers1

35

Because your dialog is a DialogFragment you can use two things

  1. If you are starting the dialog from a Activity, you can use an interface

  • create an interface

    public interface ISelectedData {
    void onSelectedData(String string);
}

  • implement an interface in your Activity

    public class MyActivity implements ISelectedData {

    .....

    @Override 
    public void onSelectedData(String myValue) {
        // Use the returned value
    }
}

  • in your Dialog, attach the interface to your Activity

    private ISelectedData mCallback;

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    try {
        mCallback = (ISelectedData) activity;
    }
    catch (ClassCastException e) {
        Log.d("MyDialog", "Activity doesn't implement the ISelectedData interface");
    }
}

  • when returning the value to Activity, just call in your Dialog

    mCallback.onSelectedData("myValue");

    Check the example on the Android developer site.

  1. If you are starting the dialog from a Fragment, you can use setTargetFragment(...)

  • starting the Dialog

    MyDialog dialog = new MyDialog();
dialog.setTargetFragment(this, Constants.DIALOG_REQUEST_CODE);
dialog.show(fragmentManager, Constants.DIALOG);

  • returning the value from the Dialog

    Bundle bundle = new Bundle();
bundle.putString(Constants.MY_VALUE, "MyValue");

Intent intent = new Intent().putExtras(bundle);

getTargetFragment().onActivityResult(getTargetRequestCode(), Activity.RESULT_OK, intent);

dismiss();

  • getting the value in Fragment

    @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == Constants.DIALOG_REQUEST_CODE) {

        if (resultCode == Activity.RESULT_OK) {

            if (data.getExtras().containsKey(Constants.MY_VALUE)) {

                String myValue = data.getExtras().getString(Constants.MY_VALUE);

                // Use the returned value
            }
        }
    }
}
Marko
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  • And How can I set click event to the contents of the recyclerview which is within that dialog, so that on that click event i get values and set to the Edittextview.?? – Sanket Ranaware Dec 30 '15 at 10:01
  • If you need a click listener to your RecyclerView's row you can use something like [this](http://stackoverflow.com/questions/24885223/why-doesnt-recyclerview-have-onitemclicklistener-and-how-recyclerview-is-dif). Similar set listeners to views inside the row or use the answer with 277 upvotes [here](http://stackoverflow.com/questions/24471109/recyclerview-onclick). – Marko Dec 30 '15 at 10:05
  • Thanks buddy, I will try this solutions...@Marko – Sanket Ranaware Dec 30 '15 at 10:14
  • One more thing, your code for getting values, should I add it to onClick event ? – Sanket Ranaware Dec 30 '15 at 10:23
  • Which example, the second one? You have to override the `onActivityResult` method in your `Fragment` and the value will be automaticaly returned. If you want to return the value in onClick, you have to call `getTargetFragment().onActivityResult()...` to return the value. – Marko Dec 30 '15 at 10:42
  • @Marco Once,I clicked textView in recyclerView it should close the dialog. Here,if I put dismiss() in onClick() event, It gives me NullPointerException. – Sanket Ranaware Dec 30 '15 at 11:33
  • @PeterParker I do not know what happens because I do not have / see your code. Step through the code with a debugger to see what is happening. – Marko Dec 30 '15 at 12:23
  • I already waste 2 days on this but now your way save my more time on it. Thanks alot – androidXP Dec 23 '17 at 00:37
  • I'm a little confused: if we could trigger fragment `onActivityResult`, then why don't we also use it in first situation. like `if (getActivity() != null) getActivity().onActivityResult( /*...*/ )` ? – Samuel T. Chou May 27 '21 at 09:37
  • Ah, I see -- the `FragmentActivity.onActivityResult` method is protected, so you cannot call that from a (Dialog)Fragment. – Samuel T. Chou May 27 '21 at 09:40