Android Extended Button detect onClick

Question

I have extended the Button class and not implemented onClick in extended button. And I am using the extended button every where and setting the onClick listener in each activity.

How can I detect the button is clicked in the Extended class.

public class ButtonExtended extends Button {
    public ButtonExtended(Context context) {
        super(context);
    }

    public ButtonExtended(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public ButtonExtended(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public ButtonExtended(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }
    //onClick(){ here i want to detect the click }
}

In this ButtonExtended class, I want to detect, if the button is clicked just for the logging purpose. How can I achieve this?

Answer 1

You can override performClick() behavior to get the clicked state.

public class ButtonExtended extends AppCompatButton{
public ButtonExtended(Context context) {
    super(context);
}
public ButtonExtended(Context context, AttributeSet attrs) {
    super(context, attrs);
}
public ButtonExtended(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}
@Override
public boolean performClick() {
    Log.d("Button","performClick");
    return super.performClick();
}
}

performClick() will get called first before the the listener. Do not omit return super.performClick() in method performClick() this consume the event and your listener will not get called.