Question

I have this design

how can I add this effect ??
can give an example of this implementation

Thanks for the answer.

Answer 1

A really simple method to draw that shadow is to use a custom ViewGroup(the one that is in your layout) and override its dispatchDraw method to draw a GradientDrawable. For example, use a custom ListView:

public class RightShadowList extends ListView {

    private GradientDrawable mGradientShadow = new GradientDrawable(
            GradientDrawable.Orientation.LEFT_RIGHT, new int[] {
                    Color.WHITE, Color.GRAY });;
    // implement the constructors

    @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        mGradientShadow.setBounds(getMeasuredWidth() - 5, 0,
                getMeasuredWidth(), getMeasuredHeight());
        mGradientShadow.draw(canvas);
    }

}