强制相机始终在android中以纵向模式打开 [英] Force a camera to always open in portrait mode in android

问题描述

是否可以在android中仅以纵向模式打开Camera Intent，即即使用户翻转设备，相机仍将处于纵向模式，

Is it possible to open the Camera Intent in android in only portrait mode, that is even if the user flipped the device, the camera will still be in portrait mode,

我尝试了以下答案:强制人像模式但没有用，谢谢

I tried the following answer: Force Portrait Mode but didn't work, Thanks

推荐答案

尝试 -

private 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);
 }

private void initCamera() {
     if(mCamera == null) {
          mCamera = Camera.open();
          setCameraDisplayOrientation(activity, CameraInfo.CAMERA_FACING_BACK, mCamera);
          mCamera.unlock();
      }
}

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