Windows phone 8相机未初始化 [英] Windows phone 8 Camera is not initialize

问题描述

你好问候



我试图用以下代码初始化相机没有初始化。

hello greetings

I am trying to initialize camera with the following code is not getting initialize.

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
        {
            // Initialize the camera, when available.
            camera   = new PhotoCamera();

            // Event is fired when the PhotoCamera object has been initialized.
            camera.Initialized += new EventHandler<CameraOperationCompletedEventArgs>(cam_Initialized);


            //Set the VideoBrush source to the camera.
            viewfinderBrush.SetSource(camera);
        }

        void cam_Initialized(object sender, CameraOperationCompletedEventArgs e)
        {
            if (e.Succeeded)
            {
                this.Dispatcher.BeginInvoke(delegate()
                {
                    MessageBox.Show("Camera initialized.");
                });
            }
        }

        protected override void OnOrientationChanged(OrientationChangedEventArgs e)
        {
            if (camera != null)
            {
                // LandscapeRight rotation when camera is on back of phone.
                int landscapeRightRotation = 180;

                // Change LandscapeRight rotation for front-facing camera.
                if (camera.CameraType == preferences.CameraDevice.Value) landscapeRightRotation = -180;

                // Rotate video brush from camera.
                if (e.Orientation == PageOrientation.LandscapeRight)
                {
                    // Rotate for LandscapeRight orientation.
                    viewfinderBrush.RelativeTransform =
                        new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = landscapeRightRotation };
                }
                else
                {
                    // Rotate for standard landscape orientation.
                    viewfinderBrush.RelativeTransform =
                        new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 0 };
                }
            }

            base.OnOrientationChanged(e);
        }

提前谢谢

Thank you in advance

推荐答案

先检查一下，然后与你的代码进行比较..

http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh202956%28v=vs.105%29.aspx?cs-save-lang=1&cs -lang = csharp＃code-snippet-3 [ ^ ]

Check this one first and then compare with your code..
http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh202956%28v=vs.105%29.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-3[^]

这篇关于Windows phone 8相机未初始化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！