NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if ([[UIApplication sharedApplication] canOpenURL:url]) {  [[UIApplication sharedApplication] openURL:url];
}  

About — prefs:root=General&path=About
Accessibility — prefs:root=General&path=ACCESSIBILITY
Airplane Mode On — prefs:root=AIRPLANE_MODE
Auto-Lock — prefs:root=General&path=AUTOLOCK
Brightness — prefs:root=Brightness
Bluetooth — prefs:root=General&path=Bluetooth
Date & Time — prefs:root=General&path=DATE_AND_TIME
FaceTime — prefs:root=FACETIME
General — prefs:root=General
Keyboard — prefs:root=General&path=Keyboard
iCloud — prefs:root=CASTLE
iCloud Storage & Backup — prefs:root=CASTLE&path=STORAGE_AND_BACKUP
International — prefs:root=General&path=INTERNATIONAL
Location Services — prefs:root=LOCATION_SERVICES
Music — prefs:root=MUSIC
Music Equalizer — prefs:root=MUSIC&path=EQ
Music Volume Limit — prefs:root=MUSIC&path=VolumeLimit
Network — prefs:root=General&path=Network
Nike + iPod — prefs:root=NIKE_PLUS_IPOD
Notes — prefs:root=NOTES
Notification — prefs:root=NOTIFICATIONS_ID
Phone — prefs:root=Phone
Photos — prefs:root=Photos
Profile — prefs:root=General&path=ManagedConfigurationList
Reset — prefs:root=General&path=Reset
Safari — prefs:root=Safari
Siri — prefs:root=General&path=Assistant
Sounds — prefs:root=Sounds
Software Update — prefs:root=General&path=SOFTWARE_UPDATE_LINK
Store — prefs:root=STORE
Twitter — prefs:root=TWITTER
Usage — prefs:root=General&path=USAGE
VPN — prefs:root=General&path=Network/VPN
Wallpaper — prefs:root=Wallpaper
Wi-Fi — prefs:root=WIFI
Setting —prefs:root=INTERNET_TETHERING

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=WIFI"]];

    NSURL *url;if (isIOS8) {url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];}else{url=[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"];}if ([[UIApplication sharedApplication] canOpenURL:url]) {[[UIApplication sharedApplication] openURL:url];}

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSArray *allLanguage = [defaults objectForKey:@"AppleLanguages"];
NSString *currentLanguage = [allLanguage objectAtIndex:0];
NSLog(@"The current language is : %@", currentLanguage); 

/***  通过实现代理方法,来获取到位置数据*/
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{// course 方向(0°到359.9°,0°代表正北)// speed 速度 m/s// CLLocation 这个类封装了经纬度,海拔,移动方向,速度和位置等相关的信息CLLocation *location = [locations lastObject];// 地理反编码// 1. 提供一个经纬度的坐标数据创建一个CLLocation对象(coorfinate : 坐标)CLLocation *locationForRecode = [[CLLocation alloc] initWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude];// 2. 创建地理反编码-反编码对象CLGeocoder *geoCoder = [[CLGeocoder alloc] init];#warning keySteps :change System Language to English!!// 如果当前系统语言为中文 则:先将 系统语言强制转换成英文,,获取到地理位置信息后再转为默认值// 获取当前默认的系统语言 (先保存下来)NSMutableArray *userDefaultLanguages = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"];// 强制 转化为英文 (因为在请求天气预报的城市名时,需要英文状态下的城市名,)
//    NSLog(@"%@",userDefaultLanguages);
//    系统默认语言 :zh-Hans-CN, en-CN// 将语言强制转化为 英文[[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"en-CN", nil] forKey:@"AppleLanguages"];// 3. 利用编码反编码对象,进行编码反编码操作[geoCoder reverseGeocodeLocation:locationForRecode completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {if (error) {// 反编码出错 打印错误信息NSLog(@"地理编码出错:%@",error);}else{// 反编码成功,打印位置信息//            NSLog(@"%@",[placemarks lastObject].locality);NSString *cityName = [placemarks lastObject].locality;NSLog(@"placemarks==>>%@",placemarks);NSLog(@"%s,%@",__FUNCTION__,cityName);// 调用 blockself.passCityNameToWeatherBlock(cityName);// 当 block 将英文城市名传出去后,立即 Device 语言 还原为默认的语言[[NSUserDefaults standardUserDefaults] setObject:userDefaultLanguages forKey:@"AppleLanguages"];}}];
}

#import "WZYNavigationController.h"  @interface WZYNavigationController ()  @end @implementation WZYNavigationController  // 当类被加载到内存的时候调用
+ (void)load
{  }  // 当类第一次使用时调用
// 我们要在这个方法中设置指定当前自定义的控制器的导航条的样式
+ (void)initialize
{  /** 如果当前的navigationBar属于WZYNavigationController的，那么我们利用appearanceWhenContainedInInstancesOfClasses方法来获取该类型的bar，然后统一设置属性。注意后面参数是一个 “类的数组”*/    UINavigationBar *navigationBar = [UINavigationBar appearanceWhenContainedInInstancesOfClasses:@[[WZYNavigationController class]]];  // bgImage  [navigationBar setBackgroundImage:[UIImage imageNamed:@"navBg"] forBarMetrics:UIBarMetricsDefault];  // 字体属性  NSMutableDictionary *dictAttr = [NSMutableDictionary dictionary];  dictAttr[NSFontAttributeName] = [UIFont systemFontOfSize:20];  dictAttr[NSForegroundColorAttributeName] = [UIColor whiteColor];  [navigationBar setTitleTextAttributes:dictAttr];  //更改导航条主题颜色  navigationBar.tintColor = [UIColor whiteColor];  //调整返回按钮当中标题的位置.（我们只要返回按钮的那个图片，但是不要上面的文字，移走文字就好了）  UIBarButtonItem *item = [UIBarButtonItem appearance];   [item setBackButtonTitlePositionAdjustment:UIOffsetMake(0, -64) forBarMetrics:UIBarMetricsDefault];
}  // 对于只修改nav的根控制器的某些样式，我们需要获取到nav的根控制器，但是上面的方法是类方法，拿不到rootVC，所以说要在pushViewController 中获取我们需要的控制器。
// 由于根控制器本质上也是由nav push而来的，所以说该方法能获得所有push的控制器
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{  if (self.childViewControllers.count == 0) { // 判断是根控制器么，只有根控制器才需要设置menuIcon，其余push的控制器不需要  UIImage *leftBarBtnImage = [UIImage imageWithOriginalImageName:@"menuIcon"];  viewController.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:leftBarBtnImage style:0 target:self action:@selector(menuClick)];  }  // 设置完样式之后再push（先push再设置还有什么鸟用？！）  [super pushViewController:viewController animated:animated];
}  // leftBarBtn的监听方法，点击之后应跳转到leftView
// 为了拿到leftView，需要通知
- (void)menuClick
{  // 发送一个通知  [[NSNotificationCenter defaultCenter] postNotificationName:WZYLeftViewDidOpenDragNotification object:nil];
}  @end