2011-10-11 142 views
0

请别人帮我。我试图将http://drobosson.blogspot.com/2011/01/google-android-camera-preview-data.htmlhttp://marakana.com/forums/android/examples/39.html转换为Monodroid(C#),但都没有成功。我遵循指示(据我所知),我不知道如何预览相机(我甚至没有拍摄PICTURE)。Monodroid相机+预览

这里是我当前的代码 - 它失败的Android.Hardware.Camera.Open()方法有了java.lang.RuntimeException(堆栈跟踪说“在Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr的JCLASS,IntPtr的jmethod)[0x00000] in:0 at Android.Hardware.Camera.Open()...“)

我已经在清单中添加了相机权限。

代码:

protected override void OnCreate(Bundle bundle) 
    { 
     base.OnCreate(bundle); 

     SetContentView(Resource.Layout.CameraPage); 

     _surfaceView = FindViewById<SurfaceView>(Resource.Id.imgCapture); 
     _debug = FindViewById<TextView>(Resource.Id.lblCameraDebug); 

     try 
     { 
      _camera = Android.Hardware.Camera.Open(); 
      //Android.Hardware.Camera.Parameters camparam = _camera.GetParameters(); 
      //camparam.SetPreviewSize(_surfaceView.Width, _surfaceView.Height); 
      //_camera.SetParameters(camparam); 

      //_camera.SetPreviewDisplay(_surfaceView.Holder); 
      //_camera.StartPreview(); 
     } 
     catch(Exception ex) 
     { 
      _debug.Text = string.Format("Error: {0} - StackTrace: {1}", ex.Message,ex.StackTrace); 
     } 
    } 

回答