有没有类似 UIApplicationDidBecomeActiveNotification 的接口？

Question

切换前后台能否通过订阅通知感知到，可以在代码的任意位置订阅并接收通知？

Answer 1

UIApplicationDidBecomeActiveNotification：https://developer.apple.com/documentation/uikit/uiapplicationdidbecomeactivenotification

UIApplicationWillResignActiveNotification：https://developer.apple.com/documentation/uikit/uiapplicationwillresignactivenotification

可以参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-inner-application-applicationcontext-0000001774280582\#ZH-CN\_TOPIC\_0000001774280582\_\_applicationcontextontype-applicationstatechange-callback-applicationstatechangecallback10