答案 0 :(得分：0)
当我按下三个点时，我想打开图像上的菜单。
当您以[SerializeField]
private GameObject anchorPrefab;
private UnityARSessionNativeInterface m_session;
// Use this for initialization
void Start()
{
m_session = new UnityARSessionNativeInterface();
Application.targetFrameRate = 60;
ARKitFaceTrackingConfiguration config = new ARKitFaceTrackingConfiguration();
config.alignment = UnityARAlignment.UnityARAlignmentGravity;
config.enableLightEstimation = true;
if (config.IsSupported)
{
m_session.RunWithConfig(config);
UnityARSessionNativeInterface.ARFaceAnchorAddedEvent += FaceAdded;
UnityARSessionNativeInterface.ARFaceAnchorUpdatedEvent += FaceUpdated;
UnityARSessionNativeInterface.ARFaceAnchorRemovedEvent += FaceRemoved;
}
}
void FaceAdded(ARFaceAnchor anchorData)
{
if (anchorPrefab != null)
{
anchorPrefab.transform.position = UnityARMatrixOps.GetPosition(anchorData.transform);
anchorPrefab.transform.rotation = UnityARMatrixOps.GetRotation(anchorData.transform);
anchorPrefab.SetActive(true);
}
}
void FaceUpdated(ARFaceAnchor anchorData)
{
if (anchorPrefab != null)
{
anchorPrefab.transform.position = UnityARMatrixOps.GetPosition(anchorData.transform);
anchorPrefab.transform.rotation = UnityARMatrixOps.GetRotation(anchorData.transform);
}
}
void FaceRemoved(ARFaceAnchor anchorData)
{
if (anchorPrefab != null)
{
anchorPrefab.SetActive(false);
}
}
// Update is called once per frame
void Update()
{
}
void OnDestroy()
{
if (anchorPrefab != null)
{
anchorPrefab.SetActive(false);
}
UnityARSessionNativeInterface.ARFaceAnchorAddedEvent -= FaceAdded;
UnityARSessionNativeInterface.ARFaceAnchorUpdatedEvent -= FaceUpdated;
UnityARSessionNativeInterface.ARFaceAnchorRemovedEvent -= FaceRemoved;
}
的顺序为icon设置ToolbarItem时，这是一个已知问题。
当我查看Secondary源代码时，发现--NavigationPageRenderer：
NavigationPageRenderer这意味着当我们使用foreach (ToolbarItem item in _toolbarTracker.ToolbarItems)
{
IMenuItemController controller = item;
item.PropertyChanged += OnToolbarItemPropertyChanged;
if (item.Order == ToolbarItemOrder.Secondary)
{
IMenuItem menuItem = menu.Add(item.Text);
menuItem.SetEnabled(controller.IsEnabled);
menuItem.SetOnMenuItemClickListener(new GenericMenuClickListener(controller.Activate));
}
else
{
IMenuItem menuItem = menu.Add(item.Text);
UpdateMenuItemIcon(context, menuItem, item);
menuItem.SetEnabled(controller.IsEnabled);
menuItem.SetShowAsAction(ShowAsAction.Always);
menuItem.SetOnMenuItemClickListener(new GenericMenuClickListener(controller.Activate));
}
}
中的辅助工具栏项目时，将不会显示任何图标。这是一个设计问题。
错误：Xamarin.Forms Secondary ToolbarItem Icon not showing
GitHub PR修复程序：https://github.com/xamarin/Xamarin.Forms/pull/1873
如果必须在项目中实现此功能，则需要重写Xamarin.Form，它将非常复杂。