SurfaceView 在原生Android中使用，你可以在android项目中创建一个包含surfaceview的customview，然后创建一个自定义viewrenderer 和 SetNativeControl(your customview) 你可以参考 Android 项目中的 CameraPreviewRenderer 、NativeCameraPreview 类和 CameraPreview 类在表单项目中.您可以参考 SurfaceView 了解更多信息和 示例使用surfaceview

SurfaceView is in used in the native Android, you could create a customview that include an surfaceview in android project,then create a custom viewrenderer and SetNativeControl(your customview) your could refer to the CameraPreviewRenderer ,NativeCameraPreview classes in android project and CameraPreview class in forms project.You can refer to SurfaceView for more information and a sample for using surfaceview