在应用程序中启用和禁用多任务处理 [英] Enabling and disabling multitasking within application

问题描述

目前，我的iPad应用程序实现了多任务处理。但是，我想为用户提供禁用多任务处理的选项。这是否可能，因为您无法修改设置了 UIApplicationExistsOnSuspend 键的Info.plist字典？

Currently, my iPad application implements multitasking. However, I would like to offer the user an option to disable multitasking. Is this possible, given the fact that you cannot modify the Info.plist dictionary where the UIApplicationExistsOnSuspend key is set?

推荐答案

好吧，你可以在你的应用程序委托中设置一个标志，当委托方法中的标志为TRUE时，该标志只会退出你的应用程序 applicationDidEnterBackground：，如下所示：

Well, you could set a flag in your application delegate that would simply exit your app when the flag is TRUE within the delegate method applicationDidEnterBackground:, like this:

@interface MyAppDelegate : NSObject <UIApplicationDelegate> {
   BOOL multitasking;
   ...
}
...
@end

@implementation MyAppDelegate

- (void) applicationDidEnterBackground:(UIApplication *)application {
   if(!multitasking) {
      exit(0);
      return;
   }
   ...
}

...
@end

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