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      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.ViewOverlay;
     22 
     23 import androidx.annotation.NonNull;
     24 import androidx.annotation.RequiresApi;
     25 
     26 @RequiresApi(18)
     27 class ViewOverlayApi18 implements ViewOverlayImpl {
     28 
     29     private final ViewOverlay mViewOverlay;
     30 
     31     ViewOverlayApi18(@NonNull View view) {
     32         mViewOverlay = view.getOverlay();
     33     }
     34 
     35     @Override
     36     public void add(@NonNull Drawable drawable) {
     37         mViewOverlay.add(drawable);
     38     }
     39 
     40     @Override
     41     public void clear() {
     42         mViewOverlay.clear();
     43     }
     44 
     45     @Override
     46     public void remove(@NonNull Drawable drawable) {
     47         mViewOverlay.remove(drawable);
     48     }
     49 
     50 }
     51