Drawable的深层副本 [英] Deep copy of a Drawable

问题描述

我有一个ImageView。在它的onClick我得到它的Drawable：

I have an ImageView. In its onClick I get its Drawable:

Drawable dr = ((ImageView) v).getDrawable();

并将其设置为对话框的ImageView：

And set it to a dialog's ImageView:

zoomedImage.setImageDrawable(dr);

但是当我关闭对话框或活动恢复时。原始位置的图像被拉伸并显示大于其大小，导致图像中只有一部分图像可见。

But when I close the dialog or the activity is resumed. The image at the original position gets stretched and is shown larger than its size, leading to only a portion of the image is visible in the ImageView.

这是一个案例吗？深拷贝还是有另一个问题？
如果是，如何深度复制原始Drawable以便我可以将副本设置为缩放图像？

Is this a case of deep copy or there is another problem? If it is, how can do I deep copy the original Drawable so that I could set the copy to zoomed image?

提前致谢。

推荐答案

最后我成功了！
我有类似的问题，当我在我的drawable上使用彩色滤镜时它改变了drawable，它非常接近其他人的解决方案，但只有这对我有用：

Finally I succeed! I had similar problem, when I used color filter on my drawable it changed the drawable, its very close to the solution of the other people here, but only this worked for me:

Drawable drwNewCopy = dr.getConstantState().newDrawable().mutate();

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