1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16package android.support.v17.leanback.widget; 17 18import android.graphics.drawable.Drawable; 19import android.view.View; 20 21class BackgroundHelperKitkat { 22 23 public static void setBackgroundPreservingAlpha(View view, Drawable drawable) { 24 if (view.getBackground() != null) { 25 drawable.setAlpha(view.getBackground().getAlpha()); 26 } 27 view.setBackground(drawable); 28 } 29} 30