iOS 相机 麦克风 照片 权限的检测与获取

前期设置
iOS10 中需要在plist文件中添加获取权限声明，否则会崩溃，提示信息如下：

[access] This app has crashed because it attempted to access privacy-sensitive data without a usage description.  The app's Info.plist must contain an NSMicrophoneUsageDescription key with a string value explaining to the user how the app uses this data.

plist中的设置如下图

1.检测麦克风权限

//检查麦克风权限
- (void) checkAudioStatus{
    AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];
    switch (authStatus) {
        case AVAuthorizationStatusNotDetermined:
        //没有询问是否开启麦克风
        self.audioStatus = @"AVAuthorizationStatusNotDetermined";
        break;
        case AVAuthorizationStatusRestricted:
        //未授权，家长限制
        self.audioStatus = @"AVAuthorizationStatusRestricted";
        break;
        case AVAuthorizationStatusDenied:
        //玩家未授权
        self.audioStatus = @"AVAuthorizationStatusDenied";
        break;
        case AVAuthorizationStatusAuthorized:
        //玩家授权
        self.audioStatus = @"AVAuthorizationStatusAuthorized";
        break;
        default:
        break;
    }
}

2.获取麦克风权限

[AVCaptureDevice requestAccessForMediaType:AVMediaTypeAudio completionHandler:^(BOOL granted) {
           NSLog(@"%@",granted ? @"麦克风准许":@"麦克风不准许");
       }];

3.检测相机权限

- (void) checkVideoStatus
{
    AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    switch (authStatus) {
        case AVAuthorizationStatusNotDetermined:
        //没有询问是否开启相机
        self.videoStatus = @"AVAuthorizationStatusNotDetermined";
        break;
        case AVAuthorizationStatusRestricted:
        //未授权，家长限制
        self.videoStatus = @"AVAuthorizationStatusRestricted";
        break;
        case AVAuthorizationStatusDenied:
        //未授权
        self.videoStatus = @"AVAuthorizationStatusDenied";
        break;
        case AVAuthorizationStatusAuthorized:
        //玩家授权
        self.videoStatus = @"AVAuthorizationStatusAuthorized";
        break;
        default:
        break;
    }
}

4.获取相机权限

 //授权相机
- (void)videoAuthAction
{
    [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
        NSLog(@"%@",granted ? @"相机准许":@"相机不准许");
    }];
}

5.检测照片权限

//检查照片权限
- (void) checkPhotoStauts{
    PHAuthorizationStatus photoAuthorStatus = [PHPhotoLibrary authorizationStatus];
    switch (photoAuthorStatus) {
        case PHAuthorizationStatusAuthorized:
        self.photoLibraryStatus = @"PHAuthorizationStatusAuthorized";
        break;
        case PHAuthorizationStatusDenied:
        self.photoLibraryStatus = @"PHAuthorizationStatusDenied";
        break;
        case PHAuthorizationStatusNotDetermined:
        self.photoLibraryStatus = @"PHAuthorizationStatusNotDetermined";
        break;
        case PHAuthorizationStatusRestricted:
        self.photoLibraryStatus = @"PHAuthorizationStatusRestricted";
        break;
        default:
        break;
    }
   }

6.获取照片权限

//授权照片
- (void)phontLibraryAction{
    [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
    }];
}

GitHub demo 地址：https://github.com/lilyDong/Permission