Java tutorial
//package com.java2s; /* * Copyright (C) 2015 Jacob Klinker * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.content.res.Resources; import android.graphics.Outline; import android.os.Build; import android.view.View; import android.view.ViewOutlineProvider; public class Main { /** * Adds a rectangular outline to a view. This can be useful when you want to add a shadow * to a transparent view. See b/16856049. * @param view view that the outline is added to * @param res The resources file. */ public static void addRectangularOutlineProvider(View view, Resources res) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { ViewOutlineProvider rectOutlineProvider = new ViewOutlineProvider() { @Override public void getOutline(View view, Outline outline) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { outline.setRect(0, 0, view.getWidth(), view.getHeight()); } } }; view.setOutlineProvider(rectOutlineProvider); } } }