从 Android L 中的 ImageView 获取位图
我想从 ImageView
获取 Bitmap
.我使用了以下代码,但 getDrawable()
返回 null.如何从 ImageView
获取整个 Bitmap
.
位图位图;if (mImageViewer.getDrawable() instanceof BitmapDrawable) {位图 = ((BitmapDrawable) mImageViewer.getDrawable()).getBitmap();} 别的 {可绘制 d = mImageViewer.getDrawable();位图 = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);画布画布=新画布(位图);d.draw(画布);}storeImage(位图,"final.jpeg");
解决方案 试试这个:
<块引用>imageView.invalidate();BitmapDrawable 可绘制 = (BitmapDrawable) imageView.getDrawable();位图 bitmap = drawable.getBitmap();
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");
解决方案
Try this:
imageView.invalidate(); BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable(); Bitmap bitmap = drawable.getBitmap();
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