java.lang.ClassCastException: com.bumptech.glide.request.target.SquaringDrawable cannot be cast to a
2017-06-15 10:57
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Glide 图片加载报错:java.lang.ClassCastException: com.bumptech.glide.request.target.SquaringDrawable cannot be cast to a。。。。。
在自定义ImageView加载的时候报错了:问题代码:
解决方式:
// 解决:加上.asBitmap() .load(imageURLString) .asBitmap()
另外附上经常出现的报错:
CircleImageView 使用Glide 加载时,设置placeholder,导致图片不显示
// 解决:加上.dontAnimate() .placeholder(R.mipmap.mine_placehold) .dontAnimate()
使用Glide 加载的图片,获取bitmap转为为string是报错
java.lang.ClassCastException: com.bumptech.glide.request.target.SquaringDrawable cannot be cast to android.graphics.drawable.BitmapDrawable
// 转化代码如下 // 获取imageview的图片,并且转化为可传递的string public static String GetStringByImageView(ImageView imageView){ // 从ImageView得到Bitmap对象 Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap(); // 把Bitmap转码成字符串 ByteArrayOutputStream baos = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 50,baos); String imageBase64 = new String (Base64.encode(baos.toByteArray(), 0)); return imageBase64; }
// 错误分析 : 通过Glide加载的image-- imageView.getDrawable() 获取的Drawable 类型不是BitmapDrawable 而是 GlideBitmapDrawable 因此类型错误导致
// 解决:加上.asBitmap() .load(imageURLString) .asBitmap()
附上一个自己简单封装的activity间传递image的功能类
使用Glide 加载图片,经常报错 You cannot
start a load for a destroyed activity
// 解决:为了一劳永逸我直接获取了application的context用来加载,一劳永逸 // 如下(KapApplication 是自定义的:public class KapApplication extends Application) // Glide 帮助类 public class KapGlideHelper { /** * 用Application context 防止出现 * */ // 创建gradle public static RequestManager CreatedGlide(){ return Glide.with(KapApplication.getContext()); } // 取消gradle请求 public static void PaauseRequests(){ Glide.with(KapApplication.getContext()).pauseRequests(); } }
// 使用: KapGlideHelper.CreatedGlide().load(imageURLString) .asBitmap() .placeholder(R.mipmap.mine_placehold) .into(imageView); // 缺点是:无法以activity为单位控制网络请求~~
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