swift3.0调用相机和相册 简单实用

1、首先，swift3.0中调用相机和相册会导致崩溃，需要在info.plist文件中加入两个键值对，如下：@H_262_17@

Privacy - Photo Library Usage Description 和Privacy - Camera Usage Description ，都是String类型，内容任意的字符串即可。
@H_262_17@

2、废话少说，上代码！@H_262_17@

class MyController:UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate { @H_262_17@

@H_262_17@

var uploaDalertController:UIAlertController!@H_262_17@

var imagePickerController:UIImagePickerController!@H_262_17@

@IBOutletweakvar headImg:UIImageView!@H_262_17@

@H_262_17@

@H_262_17@

overridefunc viewDidLoad() {@H_262_17@

super.viewDidLoad()@H_262_17@

@H_262_17@

self.initAlertController()@H_262_17@

self.initImagePickerController()@H_262_17@

} @H_262_17@

func initAlertController()@H_262_17@

{@H_262_17@

weakvar blockSelf =self@H_262_17@

self.uploaDalertController =UIAlertController(title:nil,message: nil,preferredStyle:UIAlertControllerStyle.actionSheet)@H_262_17@

self.uploaDalertController.view.TintColor = DeepMainColor@H_262_17@

let takePhoto =UIAlertAction(title:"拍照",style:UIAlertActionStyle.default) { (action:UIAlertAction)in@H_262_17@

blockSelf?.actionAction(action: action)@H_262_17@

}@H_262_17@

let photoLib =UIAlertAction(title:"从相册选择",style:UIAlertActionStyle.default) { (action:UIAlertAction)in@H_262_17@

blockSelf?.actionAction(action: action)@H_262_17@

}@H_262_17@

let cancel =UIAlertAction(title:"取消",style:UIAlertActionStyle.cancel) { (action:UIAlertAction)in@H_262_17@

blockSelf?.actionAction(action: action)@H_262_17@

}@H_262_17@

self.uploaDalertController?.addAction(takePhoto)@H_262_17@

self.uploaDalertController?.addAction(photoLib)@H_262_17@

self.uploaDalertController?.addAction(cancel)@H_262_17@

}@H_262_17@

func initImagePickerController()@H_262_17@

{@H_262_17@

self.imagePickerController =UIImagePickerController()@H_262_17@

self.imagePickerController.delegate = self@H_262_17@

// 设置是否可以管理已经存在的图片或者视频@H_262_17@

self.imagePickerController.allowsEdiTing = true@H_262_17@

}@H_262_17@

func actionAction(action:UIAlertAction)@H_262_17@

{@H_262_17@

if action.title =="拍照" {@H_262_17@

self.getImageFromPhotoLib(type: .camera)@H_262_17@

}elseif action.title =="从相册选择"|| action.title =="更换头像" {@H_262_17@

self.getImageFromPhotoLib(type: .photoLibrary)@H_262_17@

}elseif action.title =="删除照片" {@H_262_17@

self.headImg.image =UIImage(named:"head")@H_262_17@

}@H_262_17@

}@H_262_17@

func getImageFromPhotoLib(type:UIImagePickerControllersourceType)@H_262_17@

{@H_262_17@

self.imagePickerController.sourceType = type@H_262_17@

//判断是否支持相册@H_262_17@

ifUIImagePickerController.issourceTypeAvailable(.photoLibrary) {@H_262_17@

self.present(self.imagePickerController,animated: true,completion:nil)@H_262_17@

}@H_262_17@

}@H_262_17@

//MARK:- UIImagePickerControllerDelegate@H_262_17@

func imagePickerController(_ picker:UIImagePickerController,didFinishPickingMediaWithInfo info: [String :Any]){@H_262_17@

@H_262_17@

let type:String = (info[UIImagePickerControllerMediaType]as!String)@H_262_17@

//当选择的类型是图片@H_262_17@

if type=="public.image"@H_262_17@

{@H_262_17@

let img = info[UIImagePickerControllerOriginalImage]as?UIImage@H_262_17@

self.headImg.image =cropToBounds(image: img!)@H_262_17@

let imgData =UIImageJPEGRepresentation(self.headImg.image!,@H_197_911@0.5) @H_262_17@

picker.dismiss(animated:true,completion:nil)@H_262_17@

} @H_262_17@

}@H_262_17@

func imagePickerControllerDidCancel(_ picker:UIImagePickerController){@H_262_17@

picker.dismiss(animated:true,completion:nil)@H_262_17@

} @H_262_17@

@IBACtionfunc headImgTapGesture(_ sender:AnyObject) {@H_262_17@

present(self.uploaDalertController,animated:true,completion: nil)@H_262_17@

} @H_262_17@

}@H_262_17@