content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * 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.
   */
  
  package android.content.res;
  
  import android.annotation.ColorRes;
  import android.annotation.DrawableRes;
  import android.content.Context;
  import android.graphics.drawable.Drawable;
  
  import java.lang.ref.WeakReference;
  
  /**
   * Version of resources generated for apps targeting <26.
   * @hide
   */
  public class CompatResources extends Resources {
  
      private WeakReference<Context> mContext;
  
      public CompatResources(ClassLoader cls) {
          super(cls);
          mContext = new WeakReference<>(null);
      }
  
      /**
       * @hide
       */
      public void setContext(Context context) {
          mContext = new WeakReference<>(context);
      }
  
      @Override
      public Drawable getDrawable(@DrawableRes int id) throws NotFoundException {
          return getDrawable(id, getTheme());
      }
  
      @Override
      public Drawable getDrawableForDensity(@DrawableRes int id, int density)
              throws NotFoundException {
          return getDrawableForDensity(id, density, getTheme());
      }
  
      @Override
      public int getColor(@ColorRes int id) throws NotFoundException {
          return getColor(id, getTheme());
      }
  
      @Override
      public ColorStateList getColorStateList(@ColorRes int id) throws NotFoundException {
          return getColorStateList(id, getTheme());
      }
  
      private Theme getTheme() {
          Context c = mContext.get();
          return c != null ? c.getTheme() : null;
      }
  }
  