从后台删除后保存应用程序状态
我在我的应用程序委托中使用以下函数
- (void)applicationWillResignActive:(UIApplication *)application {
NSLog(@"applicationWillResignActive");
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
NSLog(@"applicationDidEnterBackground");
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
NSLog(@"applicationWillEnterForeground");
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
NSLog(@"applicationDidBecomeActive");
}
- (void)applicationWillTerminate:(UIApplication *)application {
NSLog(@"applicationWillTerminate");
}
所有函数都工作正常。但是当我通过单击后台任务中的“-”红色按钮从后台删除应用程序时，然后再次打开应用程序。没有调用任何函数。我应该使用什么来代替上述所有功能..有什么想法吗？
我到底需要的是..我需要在使用“-”红色按钮从后台删除应用程序状态时保存应用程序状态，并在打开时恢复它。
I am using following functions in my App delegate
- (void)applicationWillResignActive:(UIApplication *)application {
NSLog(@"applicationWillResignActive");
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
NSLog(@"applicationDidEnterBackground");
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
NSLog(@"applicationWillEnterForeground");
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
NSLog(@"applicationDidBecomeActive");
}
- (void)applicationWillTerminate:(UIApplication *)application {
NSLog(@"applicationWillTerminate");
}
All functions are working fine. But When i Delete the app from the Background by clicking "-" red button in the background tasks, and again open the app. no function has been called. What should i use instead of all the above functions..have any ideas?
What exactly i need is ..i need to save the application state when it has been deleted from the background using "-" red button and restore it when ever it opened.
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当应用程序进入后台模式时，您应该保存应用程序的状态（
-applicationDidEnterBackground）。当后台应用程序终止时，不会调用委托方法。您应该在 iOS 应用程序编程指南。
You should save the state of the application when it enters background mode (
-applicationDidEnterBackground). No delegate methods are called when a background app is terminated.You should find a lot of useful informations about this in the iOS Application Programming Guide.