1 /* 2 * Copyright (C) 2016 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 */ 16 17 package androidx.transition; 18 19 import android.graphics.drawable.Drawable; 20 import android.view.View; 21 import android.view.ViewGroup; 22 import android.view.ViewGroupOverlay; 23 24 import androidx.annotation.NonNull; 25 import androidx.annotation.RequiresApi; 26 27 @RequiresApi(18) 28 class ViewGroupOverlayApi18 implements ViewGroupOverlayImpl { 29 30 private final ViewGroupOverlay mViewGroupOverlay; 31 32 ViewGroupOverlayApi18(@NonNull ViewGroup group) { 33 mViewGroupOverlay = group.getOverlay(); 34 } 35 36 @Override 37 public void add(@NonNull Drawable drawable) { 38 mViewGroupOverlay.add(drawable); 39 } 40 41 @Override 42 public void clear() { 43 mViewGroupOverlay.clear(); 44 } 45 46 @Override 47 public void remove(@NonNull Drawable drawable) { 48 mViewGroupOverlay.remove(drawable); 49 } 50 51 @Override 52 public void add(@NonNull View view) { 53 mViewGroupOverlay.add(view); 54 } 55 56 @Override 57 public void remove(@NonNull View view) { 58 mViewGroupOverlay.remove(view); 59 } 60 61 } 62