ios判断相册,相机,麦克风等权限

#pragma mark - 判断相册授权

-(BOOL)determinePhotoAuthorizationWithVC:(UIViewController*)VC{

    PHAuthorizationStatus status = [PHPhotoLibraryauthorizationStatus]; //相册访问权限状态

    if (status ==PHAuthorizationStatusNotDetermined) {//相册访问权限未决定

        [PHPhotoLibraryrequestAuthorization:^(PHAuthorizationStatus resultStatus) { //请求权限,这句代码过后权限就不会再是未决定,这句代码只会被执行一次

        }];

    }

    if (status ==PHAuthorizationStatusRestricted || status == PHAuthorizationStatusDenied) {  //权限被拒绝或者不支持相册

        UIAlertController* alert = [UIAlertControlleralertControllerWithTitle:@"提示"message:@"请前往设置->兔展->开启相册权限" preferredStyle:UIAlertControllerStyleAlert];

        UIAlertAction* sureAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleCancelhandler:^(UIAlertAction *_Nonnull action) {

        }];

        [alert addAction:sureAction];

        [VC presentViewController:alertanimated:YEScompletion:nil];

        return NO;

    }else{

        return YES;

    }

}

#pragma mark - 判断相机授权和麦克风权限,拍摄视频一般需要同时获取这两个权限

-(BOOL)determineCameraAuthorizationWithVC:(UIViewController*)VC{

    /*

     typedef NS_ENUM(NSInteger, AVAuthorizationStatus) {

     AVAuthorizationStatusNotDetermined = 0,    权限未决定

     AVAuthorizationStatusRestricted    = 1,    暂时无法使用该功能(设备不支持,访问受限制等等特殊情况)

     AVAuthorizationStatusDenied        = 2,    权限被拒绝

     AVAuthorizationStatusAuthorized    = 3,    已经授权权限

     } NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;

     */

    

    AVAuthorizationStatus cameraStatus = [AVCaptureDeviceauthorizationStatusForMediaType:AVMediaTypeVideo]; //相机权限状态

    AVAuthorizationStatus microphoneStatus = [AVCaptureDeviceauthorizationStatusForMediaType:AVMediaTypeAudio];//麦克风权限状态

    if (cameraStatus ==ALAuthorizationStatusNotDetermined) { //相机权限未决定

        [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideocompletionHandler:^(BOOL granted) {//相机请求授权,这句代码过后相机权限就不会再是未决定,这句代码只会被执行一次

        }];

    }

    if (microphoneStatus) {  //麦克风权限未决定

        [[AVAudioSessionsharedInstance]requestRecordPermission:^(BOOL granted) {//麦克风请求授权,这句代码过后麦克风权限就不会再是未决定,这句代码只会被执行一次

        }];

    }

    if (cameraStatus ==ALAuthorizationStatusDenied) {  //相机权限被拒绝

        UIAlertController* alert = [UIAlertControlleralertControllerWithTitle:@"提示"message:@"请前往设置->兔展->开启相机权限" preferredStyle:UIAlertControllerStyleAlert];

        

        UIAlertAction* sureAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleCancelhandler:^(UIAlertAction *_Nonnull action) {

        }];

        [alert addAction:sureAction];

        [VC presentViewController:alertanimated:YEScompletion:nil];

        return NO;

    }else if (microphoneStatus ==AVAuthorizationStatusDenied){ //麦克风权限被拒绝

        UIAlertController* alert = [UIAlertControlleralertControllerWithTitle:@"提示"message:@"请前往设置->兔展->开启麦克风权限" preferredStyle:UIAlertControllerStyleAlert];

        UIAlertAction* sureAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleCancelhandler:^(UIAlertAction *_Nonnull action) {

        }];

        [alert addAction:sureAction];

        [VC presentViewController:alertanimated:YEScompletion:nil];

        return NO;

    }elseif (cameraStatus ==ALAuthorizationStatusRestricted){

        NSLog(@"模拟器不能打开相机，请在真机中使用");

        return NO;

    }elseif (microphoneStatus ==AVAuthorizationStatusRestricted ){

        NSLog(@"当前设备不支持麦克风");

        return NO;

    }elseif(microphoneStatus ==AVAuthorizationStatusAuthorized && cameraStatus ==AVAuthorizationStatusAuthorized){

        return YES;

    }else{

        return NO;

    }

}