android.graphics.drawable.TransitionDrawable 无法转换为 com.bumptech.glide.load.resource.bitmap.GlideBitmapDrawable

Question

我已经使用下面的代码将远程图像加载到 ImageView

Glide.with(context)
                .load(imageUrl)                   
                .placeholder(R.drawable.placeholderImage)
                .into(holder.wallPaperImageView);

现在我想从imageview获取位图

  Bitmap bitmap = ((GlideBitmapDrawable)holder.wallPaperImageView.getDrawable()).getBitmap();

但是上面的代码行抛出了下面的异常:

java.lang.ClassCastException: android.graphics.drawable.TransitionDrawable cannot be cast to com.bumptech.glide.load.resource.bitmap.GlideBitmapDrawable

如何解决？

Answer 1

用这个代替那个:

Bitmap bmp = ((GlideBitmapDrawable)holder.wallPaperImageView.getDrawable().getCurrent()).getBitmap();

或

Glide
    .with(this)
    .load(a.getAlbum_artwork())
    .asBitmap()
    .into(new SimpleTarget<Bitmap>(300,300) {
        @Override
        public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {
            setBackgroundImage(resource);
        }
    });