最近在项目里,发现使用三星手机拍照时照片被反转
解觉方式:
在拍照后调用:(onActivityResult)
* 获取图片的旋转角度,有些系统把拍照的图片旋转了,有的没有旋转 */ int degree = readPictureDegree(f.getAbsolutePath()); BitmapFactory.Options opts=new BitmapFactory.Options();//获取缩略图显示到屏幕上opts.inSampleSize=2;Bitmap cbitmap=BitmapFactory.decodeFile(f.getAbsolutePath(),opts); /** * 把图片旋转为正的方向 */ Bitmap newbitmap = rotaingImageView(degree, cbitmap); iv.setImageBitmap(newbitmap); /** * 读取图片属性:旋转的角度 * @param path 图片绝对路径 * @return degree旋转的角度 */ public static int readPictureDegree(String path) { int degree = 0; try { ExifInterface exifInterface = new ExifInterface(path); int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); switch (orientation) { case ExifInterface.ORIENTATION_ROTATE_90: degree = 90; break; case ExifInterface.ORIENTATION_ROTATE_180: degree = 180; break; case ExifInterface.ORIENTATION_ROTATE_270: degree = 270; break; } } catch (IOException e) { e.PRintStackTrace(); } return degree; } /* * 旋转图片 * @param angle * @param bitmap * @return Bitmap */ public static Bitmap rotaingImageView(int angle , Bitmap bitmap) { //旋转图片 动作 Matrix matrix = new Matrix();; matrix.postRotate(angle); System.out.println("angle2=" + angle); // 创建新的图片 Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); return resizedBitmap; }
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