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?

ADM · Accepted Answer · 2018-05-19T12:06:00.250

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.

Android Extended Button detect onClick

1 Answers1