關于android中調用系統拍照，傳回圖檔是旋轉90度..

由于項目的需要，沒有自定義拍照功能，僅僅調用了系統的拍照程式..但是出現了一個問題，就是拍照完成顯示圖檔居然是被旋轉的圖檔....

解決辦法： 

/** 
                 * 擷取圖檔的旋轉角度，有些系統把拍照的圖檔旋轉了，有的沒有旋轉 
                 */  
                int degree = readPictureDegree(f.getAbsolutePath());  
                  
                BitmapFactory.Options opts=new BitmapFactory.Options();//擷取縮略圖顯示到螢幕上                 opts.inSampleSize=2;
                Bitmap cbitmap=BitmapFactory.decodeFile(f.getAbsolutePath(),opts);
                  
                /** 
                 * 把圖檔旋轉為正的方向 
                 */  
                Bitmap newbitmap = rotaingImageView(degree, cbitmap);  
                iv.setImageBitmap(newbitmap);      

/**      * 讀取圖檔屬性：旋轉的角度      * @param path 圖檔絕對路徑      * @return degree旋轉的角度      */    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;     }    /*     * 旋轉圖檔      * @param angle      * @param bitmap      * @return Bitmap      */     public static Bitmap rotaingImageView(int angle , Bitmap bitmap) {          //旋轉圖檔 動作           Matrix matrix = new Matrix();;          matrix.postRotate(angle);          System.out.println("angle2=" + angle);          // 建立新的圖檔           Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,                  bitmap.getWidth(), bitmap.getHeight(), matrix, true);          return resizedBitmap;      }