压缩图片到指定大小

/**
* 压缩图片的大小
* @param image
* @return
*/
private Bitmap compressImage(Bitm
4000
ap image) {

ByteArrayOutputStream baos = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.JPEG, 100, baos);
int options = 100;
while ( baos.toByteArray().length / 1024>100) {        //压缩到100K以下
baos.reset();
image.compress(Bitmap.CompressFormat.JPEG, options, baos);
options -= 10;
}
ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());
Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);
return bitmap;
}