android 拍照后照片旋转问题

1、拍照

String name = DateFormat.format("yyyyMMdd_hhmmss", Calendar.getInstance(Locale.CHINA)) + ".jpg";
File file = new File(Environment.getExternalStorageDirectory() + "/DCIM/Camera");
if (!file.exists()) {
file.mkdirs();
currentCameraPhotoFile = new File(file,name);
if (!currentCameraPhotoFile.exists()) {
currentCameraPhotoFile.createNewFile();
}
}
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(currentCameraPhotoFile));
startActivityForResult(intent, CAMERA_WITH_DATA);

 2、在onActivityResult里处理返回结果，

case CAMERA_WITH_DATA: {// 拍照
System.out.println("拍照返回。。。。。。。。。。。。。。。fileName"+currentCameraPhotoFile.getName());
if (null!= currentCameraPhotoFile) {
Bitmap cameraImageBitmap = BitmapUtil.getBitmapFromBigFile(currentCameraPhotoFile.getPath(), measuredWidth, measuredHeight);
rl_jobnewbackground.setBackground(new BitmapDrawable(getResources(), cameraImageBitmap));

}

break;

 3、处理大图OOM和部分手机拍照结果旋转问题，直接上代码吧 

/**
* 获取大图bitmap
* @param path
* @param width
* @param height
* @return
*/
public static Bitmap getBitmapFromBigFile(String path, int width, int height) {
//校正旋转角度
Matrix matrix = new Matrix();
matrix.postRotate(getBitmapDegree(path));
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
// BitmapFactory.decodeResource(res, resId, options);
BitmapFactory.decodeFile(path, options);

// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, width, height);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
Bitmap decodeFile = BitmapFactory.decodeFile(path, options);

decodeFile = Bitmap.createBitmap(decodeFile, 0, 0, decodeFile.getWidth(), decodeFile.getHeight(), matrix, true);

return decodeFile;
}
/**
* 读取图片的旋转的角度
*
* @param path
*            图片绝对路径
* @return 图片的旋转角度
*/
public  static int getBitmapDegree(String path) {
int degree = 0;
try {
// 从指定路径下读取图片，并获取其EXIF信息
ExifInterface exifInterface = new ExifInterface(path);
// 获取图片的旋转信息
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;
}
/**
* 计算出合理的inSampleSize
* @param options
* @param reqWidth
* @param reqHeight
* @return
*/
public static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;

if (height > reqHeight || width > reqWidth) {

final int halfHeight = height / 2;
final int halfWidth = width / 2;

// Calculate the largest inSampleSize value that is a power of 2 and
// keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight && (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}

return inSampleSize;
}