iOS-退出App程序，进入设置页面

 AppDelegate *app = [UIApplication sharedApplication].delegate;
    UIWindow *window = app.window;
    [UIView animateWithDuration:1.0 animations:^{
        window.alpha = 0;
        window.frame = CGRectMake(0, window.bounds.size.width, 0, 0);
    } completion:^(BOOL finished) {
        exit(0);

    }];

 

   //iOS8前不可用 跳转手机设置页面

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];

//  NSURL*url=[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"];

    [[UIApplication sharedApplication] openURL:url];