iOS模拟器无法正确刷新 [英] iOS Simulator does not refresh correctly
问题描述
我尝试模拟一个非常简单的应用程序，该应用程序是在Xcode 9中创建的.我尝试在具有iOS 11.2的iPhone6的iOS模拟器中对其进行模拟.我还测试了其他具有相同结果的设备.
I try to simulate a very very simple application which I have created in Xcode 9. I try to simulate it in the iOS Simulator in an iPhone6 with iOS 11.2. I have also tested other devices with the same result.
在真实设备上，该应用程序可以正常运行.但是在模拟器上却没有.
On a real device, the app works as expected. But on the simulator it doesn't.
我希望单击该按钮后该按钮将变为橙色.表情符号应该消失了.相反，它变成了一些奇怪的阴影"外观.如果我等待，该按钮有时会在30秒钟后将其背景变为橙色.
I expect, that the button will become orange after I have clicked on it. and the emoji should disappear. Instead it changes into some strange "shadowed" look. If I wait then, the button will sometimes turn its background to orange after around 30 seconds.
我已记录了gif，以说明问题.
I have recorded a gif, to illustrate the problem.
http://www.giphy.com/gifs/l4pSUuBtN7aBVvbVe
更新:
这是另一个GIF: http://www.giphy.com/gifs/26DNe5B0vxIO6pHiw我向下拖动信息中心后，按钮就会刷新.
Here is another GIF: http://www.giphy.com/gifs/26DNe5B0vxIO6pHiw The button gets refreshed, as soon as i drag down the info center.
开发机器:Mac mini 2011，i5，SSD，8GB RAM，高Sierra
Development machine: Mac mini 2011, i5, SSD, 8GB RAM, high Sierra
希望有人可以帮助我.
更新:15.02.18 该问题仅在10或更高版本的iOS版本中出现.使用iOS 9.0版没有问题.期望那里没有表情符号...
UPDATE: 15.02.18 The problem only appears with iOS versions beginning from 10 and up. With iOS Version 9.0 there is no problem. Expect that there arent any emojis...
在此期间，我已向苹果提交了错误报告.但是我认为对此不会有任何回应.
In the meantime, i have filed a bug report to apple. But i think there will be no response on that.
认为其他人有相同的问题: https://forums.developer.apple.com/thread/96511
Looks that others having the same problem: https://forums.developer.apple.com/thread/96511
推荐答案
iOS 13更新:使用 Hardware>切换所有使用iOS 13或更高版本的设备的通话中状态栏选项.所有设备的活动指示灯都消失了.幸运的是，通话状态栏不再更改布局大小.
iOS 13 UPDATE: Use the Hardware > Toggle In-call Status Bar option for all devices with iOS 13 or higher. The activity indicator is gone for all devices. Fortunately, the in-call status bar no longer changes the layout size.
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我终于找到了解决此问题的方法！
I have finally found a working workaround for this!
对于没有缺口的模拟器，请在启动应用程序时进行设置:
For simulators without the notch, set this when you launch the app:
[UIApplication sharedApplication] .networkActivityIndicatorVisible = YES;
Swift 4.1:
Swift 4.1:
UIApplication.shared.isNetworkActivityIndicatorVisible = true
，并且永远不要将其设置回 NO .这将在状态栏中显示少量加载指示器，这将使模拟器持续处于活动状态并解决您的问题.
and never set it back to NO. This will show the little loading indicator in statusbar, which will keep the simulator constantly active and will solve your issue.
请不要忘记确保您不在生产配置中使用它.
在状态栏(iPhone X)上带有槽口的仿真器不会显示活动指示器，但是您可以使用硬件">切换通话中的状态栏"，因为通话中的图标正在设置动画，并且还会保持屏幕显示积极的.
Simulators with the notch in the status bar (iPhone X) don't show the activity indicator, but you can use Hardware > Toggle In-call Status Bar, because the in-call icon is animating and will also keep the screen active.
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