我正在编程一个iPhone应用程序,我需要强制它退出由于某些用户操作。在清理应用程序分配的内存后,调用什么方法来终止应用程序?


当前回答

去你的信息。plist并检查关键“应用程序不运行在后台”。这一次,当用户单击home按钮时,应用程序将完全退出。

其他回答

我的应用程序最近被拒绝了,因为我使用了一个无文件记录的方法。字面意思:

“不幸的是,它不能添加到App Store,因为它使用的是私有API。如iPhone开发者程序许可协议第3.3.1节所述,禁止使用非公共api:

“3.3.1应用程序只能按照苹果规定的方式使用文档api,不得使用或调用任何私有api。”

包含在应用程序中的非公共API是terminateWithSuccess"

在iPhone上,没有退出应用的概念。导致应用退出的唯一操作是触摸手机上的Home键,而这不是开发者可以访问的。

根据苹果公司的说法,你的应用程序不应该自行终止。因为用户没有点击Home键,所以任何返回到Home屏幕的操作都会给用户留下应用程序崩溃的印象。这是令人困惑的,不规范的行为,应该避免。

点击这里查看问答:https://developer.apple.com/library/content/qa/qa1561/_index.html

Q: How do I programmatically quit my iOS application? There is no API provided for gracefully terminating an iOS application. In iOS, the user presses the Home button to close applications. Should your application have conditions in which it cannot provide its intended function, the recommended approach is to display an alert for the user that indicates the nature of the problem and possible actions the user could take — turning on WiFi, enabling Location Services, etc. Allow the user to terminate the application at their own discretion. WARNING: Do not call the exit function. Applications calling exit will appear to the user to have crashed, rather than performing a graceful termination and animating back to the Home screen. Additionally, data may not be saved, because -applicationWillTerminate: and similar UIApplicationDelegate methods will not be invoked if you call exit. If during development or testing it is necessary to terminate your application, the abort function, or assert macro is recommended

- (IBAction)logOutButton:(id)sender
{
   //show confirmation message to user
   CustomAlert* alert = [[CustomAlert alloc] initWithTitle:@"Confirmation" message:@"Do you want  to exit?" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];
   alert.style = AlertStyleWhite;
   [alert setFontName:@"Helvetica" fontColor:[UIColor blackColor] fontShadowColor:[UIColor clearColor]];
   [alert show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{

   if (buttonIndex != 0)  // 0 == the cancel button
   {
      //home button press programmatically
      UIApplication *app = [UIApplication sharedApplication];
      [app performSelector:@selector(suspend)];
      //wait 2 seconds while app is going background
      [NSThread sleepForTimeInterval:2.0];
      //exit app when app is in background
      NSLog(@"exit(0)");
      exit(0);
  }
}

用户应该决定应用程序何时退出。 我不认为当应用退出时这是一种良好的用户交互。因此,它没有很好的API,只有home按钮有一个。

如果有错误:更好地实现它或通知用户。 如果必须重新启动:执行它更好的通知用户。

这听起来很愚蠢,但在不让用户决定的情况下退出应用程序,并且不通知他,这是一种糟糕的做法。苹果表示,由于有一个home键用于用户交互,所以同一个功能(退出应用程序)不应该有两个东西。