iOS中权限的总结

1、关于照相机的权限分类（麦克风，录像机）

typedef NS_ENUM(NSInteger, AVAuthorizationStatus) {

    AVAuthorizationStatusNotDetermined = 0,//默认选项，表示暂时没有选择客户端访问硬件

    AVAuthorizationStatusRestricted,//客户端未被授权访问媒体类型

    AVAuthorizationStatusDenied,// 拒绝访问客户端支持类型的媒体类型

    AVAuthorizationStatusAuthorized//客户端允许访问硬件支持的媒体类型

}

2、关于相册的权限分类

typedef NS_ENUM(NSInteger, PHAuthorizationStatus) {

    PHAuthorizationStatusNotDetermined = 0,

    PHAuthorizationStatusRestricted,       

    PHAuthorizationStatusDenied,         

    PHAuthorizationStatusAuthorized      

} 

3、关于通讯录的权限分类

ios9以前：

typedef CF_ENUM(CFIndex, ABAuthorizationStatus) {

    kABAuthorizationStatusNotDetermined = 0,    // deprecated, use CNAuthorizationStatusNotDetermined

    kABAuthorizationStatusRestricted,           // deprecated, use CNAuthorizationStatusRestricted

    kABAuthorizationStatusDenied,               // deprecated, use CNAuthorizationStatusDenied

    kABAuthorizationStatusAuthorized            // deprecated, use CNAuthorizationStatusAuthorized

} 

ios9以后：

typedef NS_ENUM(NSInteger, CNAuthorizationStatus){

    CNAuthorizationStatusNotDetermined = 0，

    CNAuthorizationStatusRestricted,

    CNAuthorizationStatusDenied,

    CNAuthorizationStatusAuthorized

} 

4、关于地理定位权限分类

typedef NS_ENUM(int, CLAuthorizationStatus) {

kCLAuthorizationStatusNotDetermined = 0,

kCLAuthorizationStatusRestricted,

kCLAuthorizationStatusDenied,

kCLAuthorizationStatusAuthorizedAlways,

kCLAuthorizationStatusAuthorizedWhenInUse,

kCLAuthorizationStatusAuthorized

};

定位条件：[CLLocationManager locationServicesEnabled] && 

             ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse 

            ||[CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways)

 5、跳转到设置界面

    NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];

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

        NSURL*url =[NSURL URLWithString:UIApplicationOpenSettingsURLString];

        [[UIApplication sharedApplication] openURL:url];

    }