Android调用系统相机拍照后获取照片被旋转了90度的解决方法

解决办法：

（得到的bmpOk就是正常的图片）

int degree = ImageUtil.readPictureDegree(imageUri.getPath());

Bitmap bmpOk = ImageUtil.rotateToDegrees(bmp, degree);

/**

* 读取照片exif信息中的旋转角度

*

* @param path

*            照片路径

* @return角度

*/

public 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;

}

/**

* 图片旋转

*

* @param tmpBitmap

* @param degrees

* @return

*/

public Bitmap rotateToDegrees(Bitmap tmpBitmap, float degrees) {

Matrix matrix = new Matrix();

matrix.reset();

matrix.setRotate(degrees);

return tmpBitmap = Bitmap.createBitmap(tmpBitmap, 0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight(), matrix,

true);

}