版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/qq_30519365/article/details/54599229
/** * 从给定的路径加载图片,并指定是否自动旋转方向 */ public static Bitmap loadBitmap(String imgpath ){ Bitmap bm = BitmapFactory.decodeFile(imgpath); int digree = 0; ExifInterface exif = null; try { exif = new ExifInterface(imgpath); } catch (IOException e) { e.printStackTrace(); exif = null; } if (exif != null) { // 读取图片中相机方向信息 int ori = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED); // 计算旋转角度 switch (ori) { case ExifInterface.ORIENTATION_ROTATE_90: digree = 90; break; case ExifInterface.ORIENTATION_ROTATE_180: digree = 180; break; case ExifInterface.ORIENTATION_ROTATE_270: digree = 270; break; default: digree = 0; break; } } if (digree != 0) { // 旋转图片 Matrix m = new Matrix(); m.postRotate(digree); bm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), m, true); } return bm; }