How to pass a click event from fragment to Container activity?

Question

I'm implementing a navigation drawer activity in which I have a fragment(consisting of recycler view) in the navigation drawer to dynamically add items to navigation drawer.

I've successfully implemented this concept but am facing a small issue that the navigation drawer does not close when I click on any item in fragment. This is because I'm not able to access DrawerLayout from fragment.

So how do I pass a click listener from my fragment to the activity to close the drawer layout.

Thank you.

Answer 1

Here is a simple solution to do that. Create an interface

public interface ClickInterface {
    public void buttonClicked();
}

Then in your activity , implement this interface

public class MainActivity extends Activity implements ClickInterface{

   @override
   public void buttonClicked() {
      //do your code here
   }
onCreate() {
       fragment.setInterface(this);
    }

Now call this method buttonclicked from fragment class

public class ChildFragment extends Fragment {
   ClickInterface interface;

   
   //call this method from activity when activity loads the fragment inside it
   public void setInterface(ClickInterface interface) {
      this.interface = interface;
   }

   public void onClick(View v) {
      interface.buttonClicked();
   }
}