ios 系统权限检测

权限判断

// 是否有相册访问权限
- (BOOL)checkPhotoAuth
{
        ALAuthorizationStatus author = [ALAssetsLibrary authorizationStatus];

        if(author == ALAuthorizationStatusRestricted || author == ALAuthorizationStatusDenied){

                //无权限
                NSError *error = [NSError errorWithDomain:@"访问相册" code:-1 userInfo:@{NSLocalizedDescriptionKey : @"无权访问相册"}];
}
// 是否有相机访问权限
- (BOOL)checkCameraAuth
{
        AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];

        if(authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied){

                //无权限
}

 // 定位权限
 // 手机是否开启了定位服务
    BOOL service = [CLLocationManager locationServicesEnabled];
    // 方向服务是否支持
    BOOL heading = [CLLocationManager headingAvailable];
    // 后台位置刷新
    BOOL backRefresh = [CLLocationManager significantLocationChangeMonitoringAvailable];

    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];

    if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied)
    {
        // 无权限
    }

系统权限scheme

// 使用此方法打开系统设置
NSURL*url=[NSURL URLWithString:@"prefs:root=WIFI"];  
[[UIApplication sharedApplication] openURL:url]; 


关于：About — prefs:root=General&path=About
辅助功能：Accessibility — prefs:root=General&path=ACCESSIBILITY
飞行模式：Airplane Mode On — prefs:root=AIRPLANE_MODE
自动锁定：Auto-Lock — prefs:root=General&path=AUTOLOCK
亮度：Brightness — prefs:root=Brightness
蓝牙：Bluetooth — prefs:root=General&path=Bluetooth
日期：Date & Time — prefs:root=General&path=DATE_AND_TIME
视频：FaceTime — prefs:root=FACETIME
通用：General — prefs:root=General
键盘：Keyboard — prefs:root=General&path=Keyboard
iCloud登录:iCloud — prefs:root=CASTLE
语言和地区：International — prefs:root=General&path=INTERNATIONAL
定位服务：Location Services — prefs:root=LOCATION_SERVICES
音乐：Music — prefs:root=MUSIC
备忘录：Notes — prefs:root=NOTES
推送：Notification — prefs:root=NOTIFICATION
相册：Photos — prefs:root=Photos
描述文件：Profile — prefs:root=General&path=ManagedConfigurationList
还原：Reset — prefs:root=General&path=Reset
声音：Sounds — prefs:root=Sounds
系统更新：Software Update — prefs:root=General&path=SOFTWARE_UPDATE_LINK
AppStore:Store — prefs:root=STORE
墙纸：Wallpaper — prefs:root=Wallpaper
WiFi：Wi-Fi — prefs:root=WIFI
热点 — prefs:root=INTERNET_TETHERING
指定应用设置：prefs:root=应用bundleID

更多权限

// 部分权限似乎不可用，跟上面的有重复，上面的权限已经测试过，真机都可以用
#define About   @"prefs:root=General&path=About"
#define Accessibility  @"prefs:root=General&path=ACCESSIBILITY"
#define AirplaneModeOn  @"prefs:root=AIRPLANE_MODE"
#define AutoLock @"prefs:root=General&path=AUTOLOCK"
#define Brightness  @"prefs:root=Brightness"
#define Bluetooth  @"prefs:root=General&path=Bluetooth"
#define DateTime  @"prefs:root=General&path=DATE_AND_TIME"
#define FaceTime  @"prefs:root=FACETIME"
#define General  @"prefs:root=General"
#define Keyboard  @"prefs:root=General&path=Keyboard"
#define iCloud  @"prefs:root=CASTLE"
#define iCloudStorageBackup  @"prefs:root=CASTLE&path=STORAGE_AND_BACKUP"
#define International  @"prefs:root=General&path=INTERNATIONAL"
#define LocationServices  @"prefs:root=LOCATION_SERVICES"
#define Music @"prefs:root=MUSIC"
#define MusicEqualizer  @"prefs:root=MUSIC&path=EQ"
#define MusicVolumeLimit  @"prefs:root=MUSIC&path=VolumeLimit"
#define Network  @"prefs:root=General&path=Network"
#define NikeiPod  @"prefs:root=NIKE_PLUS_IPOD"
#define Notes  @"prefs:root=NOTES"
#define Notification  @"prefs:root=NOTIFICATI*****_ID"
#define Phone  @"prefs:root=Phone"
#define Photos  @"prefs:root=Photos"
#define Profile  @"prefs:root=General&path=ManagedConfigurationList"
#define Reset  @"prefs:root=General&path=Reset"
#define Safari  @"prefs:root=Safari"
#define Siri  @"prefs:root=General&path=Assistant"
#define Sounds  @"prefs:root=Sounds"
#define Software Update  @"prefs:root=General&path=SOFTWARE_UPDATE_LINK"
#define Store  @"prefs:root=STORE"
#define Twitter  @"prefs:root=TWITTER"
#define Usage  @"prefs:root=General&path=USAGE"
#define VPN  @"prefs:root=General&path=Network/VPN"
#define Wallpaper  @"prefs:root=Wallpaper"
#define WiFi  @"prefs:root=WIFI"
#define Hot  @"prefs:root=INTERNET_TETHERING"