我已经使用这个压缩了图像:
private Bitmap decodeFile(InputStream is){
//decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(is,null,o);
//Find the correct scale value. It should be the power of 2.
final int REQUIRED_SIZE=100;
int width_tmp=o.outWidth, height_tmp=o.outHeight;
int scale=1;
while(true){
if(width_tmp/2<REQUIRED_SIZE || height_tmp/2<REQUIRED_SIZE)
break;
width_tmp/=2;
height_tmp/=2;
scale*=2;
}
//decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize=scale;
return BitmapFactory.decodeStream(is, null, o2);
}
我在图像视图中设置这个位图,但它在顶部和底部留下了一些空间。
我试过这个:
img.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,FrameLayout.LayoutParams.MATCH_PARENT));
img.setImageBitmap(bm);
但没有用。
还有其他方法吗?