ON_SESSION_SWITCH事件（應用程序配置文件管理器）

當會話切換至另一個會話時，用戶端會叫用此事件。 此事件允許客戶端處理程序對會話切換做出反應，根據需要更新使用者介面或內部狀態。 ON_SESSION_SWITCH事件會採用下列 eventData：

Example

// Define a handler function that's triggered when the session is switched
let sessionSwitchedHandlerFunction = function(eventInput) {
    // Log the previous and new session IDs to the console
    console.log("Previous session:  " + eventInput.data.previousSessionId +
                " - Current session: " + eventInput.data.newSessionId);

}; 
// Retrieve the event topic specific to session switching from the API
let sessionSwitchTopic = Microsoft.Apm.getEventPublisherTopic("ON_SESSION_SWITCH");
// Create a new broadcast channel to subscribe to session switch events
let sessionSwitchSubscriber = new BroadcastChannel(sessionSwitchTopic);
// Attach the session switched handler function to the message event of the subscriber
sessionSwitchSubscriber.onmessage = sessionSwitchedHandlerFunction;