跳转到系统软件

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从当前应用调整到系统自带应用，一行代码搞定

[[UIApplication sharedApplication] openURL:url];
通过给url不同的值，可以实现调用系统自带 电话／短信／邮箱／浏览器

1. 调用 电话phone

   • 拨打电话之后不跳转回app
     [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://800888"]];
   • 拨打电话之后跳转回app
     [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"telprompt://800888"]];

2. 调用自带 浏览器safari
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.abt.com"]];

3. 调用 自带Mail
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://admin@abt.com"]];

4. 调用 SMS
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms://800888"]];

5. 调用 app Store
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"itms-apps://"]];

6. 调用 iBook
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"itms-books://"]];

7. 调用 Map
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"maps://"]];

8. 调用 Facetime
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"facetime://"]];

9. 调用 Music
   [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"music://"]];

10. 跳转到系统设置相关界面
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=WIFI"]];

设置子界面的跳转关键字

目的地	URL
About	prefs:root=General&path=About
Accessibility	prefs:root=General&path=ACCESSIBILITY
AirplaneModeOn	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
INTERNET_TETHERING Internet_tethering	prefs:root= INTERNET_TETHERING