不推荐使用BitmapDrawable替代

我有以下代码，将可绘制对象旋转一定程度的角度。

    public Drawable rotateDrawable(float angle, Context context)
    {
      Bitmap arrowBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.generic2rb);

      // Create blank bitmap of equal size
      Bitmap canvasBitmap = arrowBitmap.copy(Bitmap.Config.ARGB_8888, true);
      canvasBitmap.eraseColor(0x00000000);

      // Create canvas
      Canvas canvas = new Canvas(canvasBitmap);

      // Create rotation matrix
      Matrix rotateMatrix = new Matrix();
      rotateMatrix.setRotate(angle, canvas.getWidth()/2, canvas.getHeight()/2);

      //Draw bitmap onto canvas using matrix
      canvas.drawBitmap(arrowBitmap, rotateMatrix, null);

      return new BitmapDrawable(canvasBitmap); 
    }

新版SDK指出

BitmapDrawable(canvasBitmap); 

不推荐使用。有没有其他选择？

http://developer.android.com/reference/android/graphics/drawable/BitmapDrawable.html

改为这样做：

return new BitmapDrawable(context.getResources(), canvasBitmap);

尝试一次。

1. 活动中

   BitmapDrawable background = new BitmapDrawable(this.getResources(), blurImageBg);

2. 片段中

   BitmapDrawable background = new BitmapDrawable(getActivity(), blurImageBg);

3. 在适配器或其他

   BitmapDrawable background = new BitmapDrawable(context.getResources(), blurImageBg);

Kotlin代码BitmapDrawable：

var bitmapDrawable = BitmapDrawable(resources,bitmapObj)