UserActivityRequestManager.UserActivityRequested 事件

定义

命名空间:

Windows.ApplicationModel.UserActivities

在向应用程序发出创建按需 UserActivity 对象的请求时引发。

// Register
event_token UserActivityRequested(TypedEventHandler<UserActivityRequestManager, UserActivityRequestedEventArgs const&> const& handler) const;

// Revoke with event_token
void UserActivityRequested(event_token const* cookie) const;

// Revoke with event_revoker
UserActivityRequestManager::UserActivityRequested_revoker UserActivityRequested(auto_revoke_t, TypedEventHandler<UserActivityRequestManager, UserActivityRequestedEventArgs const&> const& handler) const;

public event TypedEventHandler<UserActivityRequestManager,UserActivityRequestedEventArgs> UserActivityRequested;

function onUserActivityRequested(eventArgs) { /* Your code */ }
userActivityRequestManager.addEventListener("useractivityrequested", onUserActivityRequested);
userActivityRequestManager.removeEventListener("useractivityrequested", onUserActivityRequested);
- or -
userActivityRequestManager.onuseractivityrequested = onUserActivityRequested;

Public Custom Event UserActivityRequested As TypedEventHandler(Of UserActivityRequestManager, UserActivityRequestedEventArgs) 

事件类型

TypedEventHandler<UserActivityRequestManager,UserActivityRequestedEventArgs>

示例

protected override void OnNavigatedTo(NavigationEventArgs e)
{
    base.OnNavigatedTo(e);

    Windows.ApplicationModel.UserActivities.UserActivityRequestManager requestMgr = Windows.ApplicationModel.UserActivities.UserActivityRequestManager.GetForCurrentView();
    requestManager.UserActivityRequested += UserActivityRequested;
}

private async void UserActivityRequested(
    Windows.ApplicationModel.UserActivities.UserActivityRequestManager sender,
    Windows.ApplicationModel.UserActivities.UserActivityRequestedEventArgs args)
{
    // Instantiate an empty UserActivity object, or the application can reuse one from UserActivityChannel.GetOrCreateUserActivity
    Windows.ApplicationModel.UserActivities.UserActivity userActivity = // app code to create a new UserActivity;
    args.Request.SetUserActivity(userActivity);
}

注解

此事件在与创建 UserActivityRequestManager 的视图关联的线程上引发。