原理其实很简单,弹窗是系统通知用户微信有新消息,而不是直接告诉微信app的,微信也只是在用户打开app时,才主动获取一把消息更新的。 而这个后台刷新,本质上是iOS给app提供了一套注册机制,差不多给了30秒的调度时间,在app退到后台以后,可以在注册约定的时机被调度到,这样app就可以提前做一些准备了! 事实上,最难把...
其实对于这类前台触发，后台必须保障完成的功能，苹果早就提供了BackgroundTaskCompletion机制，可以保证后台...
When Background App Refresh is turned on, apps that take advantage of this feature can refresh themselves in the background. For additional info, refer tomultitasking and background app refresh. Open the Settings app on your Apple®iPhone®. Tap General . Tap Background App Refresh twice t...
您可以在iOS中轻松关闭该功能。 如果您担心iPhone和iPad应用程序会跟踪您或在不使用时传输数据,正如最近推出的华盛顿邮报文章中所讨论的那样,一种简单的方法可以防止大部分类型的活动是在iOS上禁用名为Background App Refresh的功能。关闭后台应用程序刷新后,iOS应用程序将无法在后台更新或运行,而是在它们再次在屏幕上直...
：指的是电池在一次充满电后可以使用的时间长度。低功耗模式（Low Power Mode）：iOS系统中一种减少电池消耗的功能模式。后台应用程序刷新（Background App Refresh）：指的是应用程序在后台更新内容的功能。位置服务（Location Services）：指的是允许应用程序使用GPS、蓝牙、Wi-Fi或蜂窝网络信息来确定你的位置。
If you worry about your iPhone 14 Pro getting hot, you can always take preventive measures like disabling Background App Refresh or using Apple’s standard charger. Does the iPhone 14 Pro Have a Cooling System? Yes, the iPhone 14 Pro has a cooling system consisting of graphite sheets. Apple...
Understanding Background Refresh on iPhone What exactly does background refresh do, other than the obvious? What happens if I turn it off for all apps, other than messaging and social media? [Re-Titled By Moderator] iPhone 12, iOS 17 ...
In settings...select "General", then "Background App Refresh"...find the VPN app and toggle this OFF. In settings...select "Cellular", find the app again and toggle if OFF. VPNs can be wonderful, but I had no idea how badly it messes with data connections, even in an idle state...
Note: When Low Power mode is on, the Battery icon turns yellow and the battery percentage is displayed in the status bar. Fetch, background app refresh, automatic downloads, and some visual effects are reduced or turned off. You can view your app usage for theLast 24 Hoursor theLast 5...
I've reconfigured the phone again with the same settings as before (AOD On, brightness auto, about 10 apps with notifications on, eSIM, background app refresh off, job email & slack set to push, dark mode, 5G On (95% of the time I used 5G not the wireless connection), Bluetooth on...