content: /*
   * Copyright (C) 2015 tyrantgit
   *
   * 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 com.example.administrator.viewexplosion;
  
  
  import android.content.res.Resources;
  import android.graphics.Bitmap;
  import android.graphics.Canvas;
  import android.graphics.drawable.BitmapDrawable;
  import android.graphics.drawable.Drawable;
  import android.view.View;
  import android.widget.ImageView;
  
  public class Utils {
  
      private Utils() {
      }
  
      private static final float DENSITY = Resources.getSystem().getDisplayMetrics().density;
      private static final Canvas sCanvas = new Canvas();
  
      public static int dp2Px(int dp) {
          return Math.round(dp * DENSITY);
      }
  
      public static Bitmap createBitmapFromView(View view) {
          view.clearFocus();
          Bitmap bitmap = createBitmapSafely(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888, 1);
          if (bitmap != null) {
              synchronized (sCanvas) {
                  Canvas canvas = sCanvas;
                  canvas.setBitmap(bitmap);
                  view.draw(canvas);
                  canvas.setBitmap(null);
              }
          }
          return bitmap;
      }
  
      public static Bitmap createBitmapSafely(int width, int height, Bitmap.Config config, int retryCount) {
          try {
              return Bitmap.createBitmap(width, height, config);
          } catch (OutOfMemoryError e) {
              e.printStackTrace();
              if (retryCount > 0) {
                  System.gc();
                  return createBitmapSafely(width, height, config, retryCount - 1);
              }
              return null;
          }
      }
  }
  