Android拍照摄像方向旋转的问题代码具体解释 _Android

眼前多少难甘事，自古男儿当自强。这篇文章主要讲述Android拍照摄像方向旋转的问题代码具体解释相关的知识，希望能为你提供帮助。
近期做了个拍照、摄像的应用。遇到了拍照、摄像的图像相对于现实。翻转了90度。原因：相机这个硬件的角度是横屏的角度，所以会出现都是横屏的。
1.照相、摄影预览图像的正确角度显示：

public static void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation(); int degrees = 0; switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; }int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; // compensate the mirror } else {// back-facing result = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(result); }

改方法动态获取手机是Landscape（横屏）或Portrait(竖屏）来更改预览图。
（后屏的cameraId是0 ）

2.图像保存的正确角度（当我们拍下照片，发现角度又不正确）
@Override
public void onPictureTaken(byte[] data, Camera camera) {

try { Bitmap realImage = BitmapFactory.decodeByteArray(data, 0, data.length); android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(0, info); Bitmap bitmap = rotate(realImage, info.orientation); FileOutputStream fos = new FileOutputStream(pictureFile); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos); fos.close(); //FileOutputStream fos = new FileOutputStream(pictureFile); //fos.write(data); //fos.close(); DBRecordAdapter.getInstance().insertRecord(bean); } catch (FileNotFoundException e) { Log.d(TAG, " File not found: " + e.getMessage()); } catch (IOException e) { Log.d(TAG, " Error accessing file: " + e.getMessage()); }

}

3.录像回放的正确的方向：