英文:
Button stops working after swiping up app in control center SwiftUI
问题
我的应用实际上就是默认的Xcode项目，只有一个按钮，按下时会在控制台中打印“工作”。当我第一次在手机上打开应用时，按钮可以正常工作。如果我退出然后重新打开应用，甚至关闭手机然后重新打开应用，按钮仍然可以正常工作。
但是当我向上滑动以打开控制中心，然后向上滑动我的应用并重新打开它时，按钮就不再起作用了。
偶尔（但不是每次测试时都会出现），Xcode会显示：“来自调试器的消息：由于信号9而终止”。我做错了什么？再次说明，代码只是SwiftUI项目的起始代码和这样的一段：
Button("点击我", action: {
print("工作")
})
英文:
My app is literally the default Xcode project with just a button that prints "Working" to the console when pressed. The button works when I first open the app on my phone. The button still works if I exit and then reopen the app, or even turn off my phone and then reopen the app.
But when I swipe up to go to the Control Center and then swipe up on my app and then reopen it, the button no longer works.
Occasionally (but not every time I have tested), Xcode will say: "Message from debugger: Terminated due to signal 9". What am I doing wrong? Again, the code is just the SwiftUI Project starter code and this:
Button("Click me", action: {
print("Works")
})
答案1
得分: 3
终止正在运行的应用程序时，从Xcode中进行操作并不是一个很好的做法，因为这会导致Xcode变得混乱，不再与运行中的应用程序"连接"。您需要让Xcode恢复正常：
-
在您"重新打开它"之前，您没有等待足够长的时间：在滑动上去之后，缓慢地数到十，然后从Xcode中重新启动应用程序。
-
另一个好主意是检查应用程序是否也在Xcode中停止了：在滑动上去之后，切换到Xcode并点击其停止按钮，缓慢地数到三，然后从Xcode中重新启动应用程序。
英文:
Killing the app while it's running from Xcode is not a very nice thing to do to Xcode, which becomes confused and is no longer "hooked up" to the running app. You need to unconfuse Xcode:
-
You're not waiting long enough before you "reopen it": after the swipe up, count to ten, slowly, and then relaunch the app from Xcode.
-
Another good idea is to check that the app has also stopped in Xcode itself: after the swipe up, switch to Xcode and hit its Stop button, count to three, slowly, then relaunch the app from Xcode.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论