Question

I usually implement click event bound to a certain visual element, like

final Button button = (Button) findViewById(R.id.button_id);
         button.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 // Perform action on click
             }
         });

Often I see examples where they use Activity-wide onclick (implementing View.OnClickListener) and then they do not create View.OnClickListener for each element but rather just pass this, like

public class MyClass extends Activity implements View.OnClickListener { 

    //...

    someUIElement.setOnClickListener(this);

    public void onClick(View view) {
       //TODO implement this
    }
}

When should I use such Activity-wide OnClick events? Are both ways the same

Answer 1

Hi Please check may be helpful

How to handle button clicks using the XML onClick within Fragments

http://developer.android.com/guide/topics/ui/ui-events.html

http://developer.android.com/reference/android/widget/Button.html