####跳转到APP的设置界面
跳转事件

NSURL * url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];

       if([[UIApplication sharedApplication] canOpenURL:url]) {

           NSURL *url =[NSURL URLWithString:UIApplicationOpenSettingsURLString];

           [[UIApplication sharedApplication] openURL:url];

       }

####跳转到系统设置的其他界面以wifi为例
1.在info.plist中URL Types添加 URL Schemes 为 prefs 也可以TARGETS中选择info 在URL Types添加
2.跳转代码

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

跳转到其他的界面的字段

蜂窝网络：prefs:root=MOBILE_DATA_SETTINGS_ID
VPN — prefs:root=General&path=Network/VPN
Wi-Fi：prefs:root=WIFI
定位服务：prefs:root=LOCATION_SERVICES
个人热点：prefs:root=INTERNET_TETHERING
关于本机：prefs:root=General&path=About
辅助功能：prefs:root=General&path=ACCESSIBILITY
飞行模式：prefs:root=AIRPLANE_MODE
锁定：prefs:root=General&path=AUTOLOCK
亮度：prefs:root=Brightness
蓝牙：prefs:root=General&path=Bluetooth
时间设置：prefs:root=General&path=DATE_AND_TIME
FaceTime：prefs:root=FACETIME
设置：prefs:root=General
键盘设置：prefs:root=General&path=Keyboard
iCloud：prefs:root=CASTLE
iCloud备份：prefs:root=CASTLE&path=STORAGE_AND_BACKUP
语言：prefs:root=General&path=INTERNATIONAL
定位：prefs:root=LOCATION_SERVICES
音乐：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
Wallpaper — prefs:root=Wallpaper