在iOS中以編程方式將用戶置於後臺刷新設置

Question

在我的應用程序中，我檢查後臺刷新設置是否啓用。如果未啓用，我希望該應用將打開「設置」選項並將用戶帶到「後臺刷新」選項。 是否有可能以編程方式進行？

Answer 1

我想你想要做那樣的事情？

if ([[UIApplication sharedApplication] backgroundRefreshStatus] == UIBackgroundRefreshStatusAvailable) { 

    NSLog(@"Background updates are available for the app."); 
}else if([[UIApplication sharedApplication] backgroundRefreshStatus] == UIBackgroundRefreshStatusDenied) 
{ 
    NSLog(@"The user explicitly disabled background behavior for this app or for the whole system."); 
}else if([[UIApplication sharedApplication] backgroundRefreshStatus] == UIBackgroundRefreshStatusRestricted) 
{ 
    NSLog(@"Background updates are unavailable and the user cannot enable them again. For example, this status can occur when parental controls are in effect for the current user."); 
}