create Ripple Drawable - Android Graphics

Android examples for Graphics:Drawable Operation

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  2. Android
  3. Graphics
  4. Drawable Operation

Description

create Ripple Drawable

Demo Code


//package com.java2s;
import android.content.res.ColorStateList;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.RippleDrawable;
import android.graphics.drawable.StateListDrawable;
import android.os.Build;
import android.view.View;

public class Main {
    public static Drawable createRippleDrawable(final View v,
            final int color) {
        return createRippleDrawable(v, color, null);
    }//from   w  w  w .j  a  va  2  s . c  o  m

    public static Drawable createRippleDrawable(final View v,
            final int color, int drawableResource) {
        return createRippleDrawable(v, color, v.getContext().getResources()
                .getDrawable(drawableResource));
    }

    public static Drawable createRippleDrawable(final View v,
            final int color, Drawable pressed) {

        Drawable drawable = v.getBackground();

        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            if (drawable instanceof RippleDrawable) {
                drawable = ((RippleDrawable) drawable).getDrawable(0);

                RippleDrawable rippleDrawable = new RippleDrawable(
                        new ColorStateList(new int[][] {
                                new int[] { android.R.attr.state_pressed },
                                new int[] { 0 } }, new int[] { color, 0 }),
                        drawable, null);

                return rippleDrawable;
            } else {
                if (drawable == null) {
                    drawable = new ColorDrawable(0);
                    v.setBackground(drawable);
                    RippleDrawable rippleDrawable = new RippleDrawable(
                            new ColorStateList(
                                    new int[][] {
                                            new int[] { android.R.attr.state_pressed },
                                            new int[] { 0 } }, new int[] {
                                            color, 0 }), drawable,
                            new ColorDrawable(0xffffffff));
                    return rippleDrawable;
                } else {
                    RippleDrawable rippleDrawable = new RippleDrawable(
                            new ColorStateList(
                                    new int[][] {
                                            new int[] { android.R.attr.state_pressed },
                                            new int[] { 0 } }, new int[] {
                                            color, 0 }), drawable, null);
                    return rippleDrawable;
                }
            }
        } else {

            if (drawable == null) {
                drawable = new ColorDrawable(color);
            }

            if (pressed == null) {
                pressed = drawable;
            }

            StateListDrawable sld = new StateListDrawable();
            sld.addState(new int[] { android.R.attr.state_pressed, },
                    pressed);

            if (v.getBackground() != null) {
                sld.addState(new int[] { 0, }, drawable);
            }

            return sld;
        }
    }
}

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