从Android L中的ImageView获取位图 [英] Get Bitmap from ImageView in Android L

问题描述

我想从 ImageView 获取位图。我使用了以下代码，但 getDrawable（）返回null。如何从 ImageView 获得整个位图。

I want to get Bitmap from ImageView. I have used following code, but getDrawable() returns null. How to get whole Bitmap from ImageView.

Bitmap bitmap;
if (mImageViewer.getDrawable() instanceof BitmapDrawable) {
    bitmap = ((BitmapDrawable) mImageViewer.getDrawable()).getBitmap();
} else {
    Drawable d = mImageViewer.getDrawable();
    bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    d.draw(canvas);
}
storeImage(bitmap,"final.jpeg");

推荐答案

试试这个：

BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = drawable.getBitmap();

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