ios --- 调用系统"设置"里的功能

安装后第一次运行软件时，系统会弹出提示用户是否允许软件获取当前位置，如果用户不允许的话，之后运行时系统不会在弹出提示设置，这点很不方便，有个解决办法是给用户一个选项，调出iphone中“设置”定位服务选项，由用户手动设置，调用系统“设置”中定位服务相关代码如下： -(IBAction)btnSetting:(id)sender{ NSURL*url=[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]; [[UIApplication sharedApplication] openURL:url]; } 还有其他调用系统设置的命令： [font=] 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

安装后第一次运行软件时，系统会弹出提示用户是否允许软件获取当前位置，如果用户不允许的话，之后运行时系统不会在弹出提示设置，这点很不方便，有个解决办法是给用户一个选项，调出iphone中“设置”定位服务选项，由用户手动设置，调用系统“设置”中定位服务相关代码如下： -(IBAction)btnSetting:(id)sender{ NSURL*url=[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]; [[UIApplication sharedApplication] openURL:url]; } 还有其他调用系统设置的命令： [font=] 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