Android如何使用矩阵获取imageview的边界 [英] Android how to get bounds of imageview with matrix

问题描述

我有一个将scaletype设置为矩阵的ImageView，并希望在矩阵转换后获得带有图像边界的Rect.

I have an ImageView with scaletype set to matrix, and would like to get a Rect with the bounds of the image after the transformation of the matrix.

我怎么得到这样的直肠?谢谢.

How do I get such a rect? thanks.

推荐答案

ImageView imageView = (ImageView)findViewById(R.id.imageview);
Drawable drawable = imageView.getDrawable();
Rect imageBounds = drawable.getBounds();

然后使用Matrix.mapRect.

Then use Matrix.mapRect.

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