Android ImageButton - determine what resource is currently set

Question

Is there a way I can find what resource a particular ImageButton is set to, at any given time?

For eg: I have an ImageButton that I set to R.drawable.btn_on

Answer 1

You could define your own class as a child of ImageButton, add a private int variable and set it when setImageResource(int) is called. Something like:

public class MyImageButton extends ImageButton {

    private int mImageResource = 0;

    @Override
    public void setImageResource (int resId) {
        mImageResource = resId;
        super.setImageResource(resId);
    }

    public int getImageResource() {
        return mImageResource;
    }
}

I didn't test it, but you get the idea - then you can call getImageResource() on your button, assuming it has been previously set with setImageResource().