是解码图片报错。换成这种方式解决
URL imageurl = new URL(String url);
IputStream stream = imageurl.openStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int len = 0;
while ((len = is.read(b, 0, 1024)) != -1)
{
baos.write(b, 0, len);
baos.flush();
}
byte[] bytes = baos.toByteArray();
Bitmap orginImage=BitmapFactory.decodeByteArray(bytes,0.bytes.length);