Java.lang.RuntimeException:setParameters在android.hardware.camera.native_setParameter（本机方法）上失败

我使用的是Android APIDemo示例代码。

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但是我的手机是G2 Android OS 2.1

在设置caemra参数之前，可以使用camera.getParameters（）.flatte（）记录camera支持的所有参数。因此，您可以使用正确的参数。

将surfaceCreated方法替换为该方法，并告诉我它是否有效

 public void surfaceCreated(SurfaceHolder holder){
        // The Surface has been created, now tell the camera where to draw the
        // preview.


        Log.d(TAG, "surfaceCreated camera id" + mCamera);

        try {
            CamcorderProfile profile ;

            int numCameras = Camera.getNumberOfCameras();
            if (numCameras > 1) {
            profile = (CamcorderProfile
                        .get(Camera.CameraInfo.CAMERA_FACING_FRONT,CamcorderProfile.QUALITY_HIGH));
            }
            else{

                profile = (CamcorderProfile
                        .get(Camera.CameraInfo.CAMERA_FACING_BACK,CamcorderProfile.QUALITY_HIGH));
            }


            Camera.Parameters parameters = mCamera.getParameters();
            parameters.setPreviewSize(profile.videoFrameWidth, profile.videoFrameHeight);
            mCamera.setParameters(parameters);
            mCamera.setPreviewDisplay(holder);
            mCamera.startPreview();
        }
        catch (IOException e) {
            Log.d(TAG, "Error setting camera preview: " + e.getMessage());
        }}