測試Camera使用SurfaceView預覽，出現，影象拉伸，以及圖案旋轉90°，儲存下的圖片同樣有以上問題。解決：

 android.hardware.Camera.Parameters parameters = camera.getParameters();
                    android.hardware.Camera.Size bestSize = null;

                    List<android.hardware.Camera.Size> sizeList = camera.getParameters().getSupportedPreviewSizes
 
();
                    bestSize = sizeList.get(0);

                    for(int i = 1; i < sizeList.size(); i++){
                        if((sizeList.get(i).width * sizeList.get(i).height) >
                                (bestSize.width * bestSize.height)){
                            bestSize = sizeList.get
 
(i);//獲取最佳尺寸
                        }
                    }

                    parameters.setPreviewSize(bestSize.width, bestSize.height);
                    camera.setParameters(parameters);
                    camera.setDisplayOrientation(90);//解決影象旋轉90度問題
                    camera.setParameters(parameters);
 

                    camera.startPreview();

圖片儲存之前進行以下處理：

 Bitmap bm0 = BitmapFactory.decodeByteArray(data, 0, data.length);
                    Matrix m = new Matrix();
                    m.setRotate(90, (float) bm0.getWidth() / 2, (float) bm0.getHeight() / 2);
                    final Bitmap bm = Bitmap.createBitmap(bm0, 0, 0, bm0.getWidth(), bm0.getHeight(), m, true);
                    out = new FileOutputStream(fileName);
                    bm.compress(Bitmap.CompressFormat.PNG, 90, out);
                    out.flush();