Android imageview change tint to simulate button click

Question

I have an imageview on which I have set a bitmap fetched from an url. On the imageview I have set an onClickListener which opens up a dialog.

I want to somehow chang

Answer 1

One way would be to use a combination of a ColorFilter and a ColorStateList that contains your tint color for when the button is pressed. The xml for the ColorStateList in the res/color directory would look like this:

button_pressed.xml

where @color/pressed_color is your tint color (which should be partially transparent). Then in your ImageView subclass, you apply the color by overriding drawableStateChanged().

@Override
protected void drawableStateChanged() {
    super.drawableStateChanged();

    ColorStateList list = getResources().getColorStateList(R.color.button_pressed);
    int color = list.getColorForState(getDrawableState(), Color.TRANSPARENT);
    setColorFilter(color);
    invalidate();
}

Any time the button's state changes, this code is called and will automatically set the tint as appropriate.