swift中UIImagePickerController的使用（摄像）

https://github.com/potato512/SYSwiftLearning

效果图

关键代码

var cameraPicker:UIImagePickerController! = nil

// MARK: 摄像func videoShow(){        /*        使用如下属性时，注意添加framework：MobileCoreServices                KUTTypeImage 包含        const CFStringRef  kUTTypeImage ;抽象的图片类型        const CFStringRef  kUTTypeJPEG ;        const CFStringRef  kUTTypeJPEG2000 ;        const CFStringRef  kUTTypeTIFF ;        const CFStringRef  kUTTypePICT ;        const CFStringRef  kUTTypeGIF ;        const CFStringRef  kUTTypePNG ;        const CFStringRef  kUTTypeQuickTimeImage ;        const CFStringRef  kUTTypeAppleICNS        const CFStringRef  kUTTypeBMP;        const CFStringRef  kUTTypeICO;               KUTTypeMovie 包含：        const CFStringRef  kUTTypeAudiovisualContent ;抽象的声音视频        const CFStringRef  kUTTypeMovie ;抽象的媒体格式（声音和视频）        const CFStringRef  kUTTypeVideo ;只有视频没有声音        const CFStringRef  kUTTypeAudio ;只有声音没有视频        const CFStringRef  kUTTypeQuickTimeMovie ;        const CFStringRef  kUTTypeMPEG ;        const CFStringRef  kUTTypeMPEG4 ;        const CFStringRef  kUTTypeMP3 ;        const CFStringRef  kUTTypeMPEG4Audio ;        const CFStringRef  kUTTypeAppleProtectedMPEG4Audio;        */                // 获得相机模式下支持的媒体类型        let availableMediaTypes:Array = UIImagePickerController.availableMediaTypesForSourceType(.Camera)!        var canTakeVideo = false        for mediaType in availableMediaTypes        {            if mediaType == (kUTTypeImage as String)            {                // 支持摄像                canTakeVideo = true                break;            }        }        // 检查是否支持摄像        if (!canTakeVideo)        {            print("sorry, capturing video is not supported.!!!");            return;        }                // 创建图像选取控制器        let videoPicker = UIImagePickerController()        // 设置图像选取控制器的来源模式为相机模式        videoPicker.sourceType = UIImagePickerControllerSourceType.Camera        // 设置图像选取控制器的类型为动态图像，即视频文件        videoPicker.mediaTypes = [kUTTypeMovie as String]        // 设置摄像图像品质        videoPicker.videoQuality = UIImagePickerControllerQualityType.TypeHigh        // 设置最长摄像时间        videoPicker.videoMaximumDuration = 30        // 允许用户进行编辑        videoPicker.allowsEditing = false        // 设置委托对象        videoPicker.delegate = self        // 以模式视图控制器的形式显示        self.presentViewController(videoPicker, animated: true, completion: nil)}

// MARK: UIImagePickerControllerDelegate, UINavigationControllerDelegatefunc imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {        print("1 图片选择：\(info)")                // 录像            // 获取媒体类型            let mediaType = info[UIImagePickerControllerMediaType] as! String            // 判断是静态图像还是视频            if mediaType == (kUTTypeImage as String)            {                        }            else if mediaType == (kUTTypeMovie as String)            {                // 获取视频文件的url                let mediaURL = info[UIImagePickerControllerMediaURL] as! NSURL                // 视频文件的地址                let pathString = mediaURL.relativePath                print("视频地址：\(pathString)")                                // 创建ALAssetsLibrary对象并将视频保存到媒体库（注意添加frame：AssetsLibrary）                let assetsLibrary = ALAssetsLibrary()                assetsLibrary.writeVideoAtPathToSavedPhotosAlbum(mediaURL, completionBlock: {                    (assetURL:NSURL!, error:NSError!) -> Void in                    if let errorTmp = error                    {                        print("保存失败：\(errorTmp)");                    }                    else                    {                        print("保存成功");                    }                })            }                // 退出图片选择控制器        picker.dismissViewControllerAnimated(true, completion: nil)}    func imagePickerControllerDidCancel(picker: UIImagePickerController) {        print("2 放弃图片选择")                // 退出图片选择控制器        picker.dismissViewControllerAnimated(true, completion: nil)}