1憎兽、相冊權(quán)限校驗(yàn)冷离，代碼如下：

    //相冊
    func checkPhotoLibraryPermission() -> Bool{
        if #available(iOS 9.0, *){  // iOS 9 及其以上系統(tǒng)運(yùn)行
            let status = PHPhotoLibrary.authorizationStatus()
            switch status {
            case .notDetermined:  //用戶尚未做出選擇
                return false
            case .authorized:  //已授權(quán)
                return true
            case .denied:  //用戶拒絕
                return false
            case .restricted:  //家長控制
                return false
            }
        }else {
            let authorizationStatus = ALAssetsLibrary.authorizationStatus()
            switch authorizationStatus {
            case .notDetermined:  //用戶尚未做出選擇
                return false
            case .authorized:  //已授權(quán)
                return true
            case .denied:  //用戶拒絕
                return false
            case .restricted:  //家長控制
                return false
            }
        }
    }

2、相機(jī)權(quán)限校驗(yàn)唇兑，代碼如下：

    //相機(jī)
    func checkCameraPermission() -> Bool{
        let mediaType = AVMediaTypeVideo
        let authorizationStatus = AVCaptureDevice.authorizationStatus(forMediaType: mediaType)
        switch authorizationStatus {
        case .notDetermined:  //用戶尚未做出選擇
            return false
        case .authorized:  //已授權(quán)
            return true
        case .denied:  //用戶拒絕
            return false
        case .restricted:  //家長控制
            return false
        }
    }

3酒朵、麥克風(fēng)權(quán)限校驗(yàn)，代碼如下：

    //麥克風(fēng)
    func checkMicroPermission() -> Bool{
        let mediaType = AVMediaTypeAudio
        let authorizationStatus = AVCaptureDevice.authorizationStatus(forMediaType: mediaType)
        switch authorizationStatus {
        case .notDetermined:  //用戶尚未做出選擇
            return false
        case .authorized:  //已授權(quán)
            return true
        case .denied:  //用戶拒絕
            return false
        case .restricted:  //家長控制
            return false
        }
    }

4扎附、定位權(quán)限校驗(yàn)蔫耽，代碼如下：

    //定位
    func checkLocationPermission() -> Bool{
        let status = CLLocationManager.authorizationStatus()
        switch status {
        case .notDetermined:  //用戶尚未做出選擇
            return false
        case .restricted:  //未被授權(quán)
            return false
        case .denied:  //用戶拒絕
            return false
        case .authorizedWhenInUse:  //使用期間定位
            return true
        case .authorizedAlways:  //一直定位
            return true
        }
    }

為什么switch最后沒有default呢？因?yàn)槲野袮VAuthorizationStatus所有狀態(tài)都列出來了

public enum AVAuthorizationStatus : Int {
    case notDetermined
    case restricted
    case denied
    case authorized
}