swift3.0调用相机和相册 简单实用

概述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： 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。 2、废话少说，上代码！ class MyController:UIViewCont

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：

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。

2、废话少说，上代码！

class MyController:UIVIEwController,UIImagePickerControllerDelegate,UINavigationControllerDelegate {

var uploaDalertController:UIAlertController!

var imagePickerController:UIImagePickerController!

@IBOutletweakvar headimg:UIImageVIEw!

overrIDefunc vIEwDIDLoad() {

super.vIEwDIDLoad()

self.initAlertController()

self.initimagePickerController()

}

func initAlertController()

{

weakvar blockSelf =self

self.uploaDalertController =UIAlertController(Title:nil,message: nil,preferredStyle:UIAlertControllerStyle.actionSheet)

self.uploaDalertController.vIEw.tintcolor = DeepMaincolor

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

blockSelf?.actionAction(action: action)

}

let photolib =UIAlertAction(Title:"从相册选择",style:UIAlertActionStyle.default) { (action:UIAlertAction)in

blockSelf?.actionAction(action: action)

}

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

blockSelf?.actionAction(action: action)

}

self.uploaDalertController?.addAction(takePhoto)

self.uploaDalertController?.addAction(photolib)

self.uploaDalertController?.addAction(cancel)

}

func initimagePickerController()

{

self.imagePickerController =UIImagePickerController()

self.imagePickerController.delegate = self

// 设置是否可以管理已经存在的图片或者视频

self.imagePickerController.allowsEditing = true

}

func actionAction(action:UIAlertAction)

{

if action.Title =="拍照" {

self.getimageFromPhotolib(type: .camera)

}elseif action.Title =="从相册选择"|| action.Title =="更换头像" {

self.getimageFromPhotolib(type: .photolibrary)

}elseif action.Title =="删除照片" {

self.headimg.image =UIImage(named:"head")

}

}

func getimageFromPhotolib(type:UIImagePickerControllerSourceType)

{

self.imagePickerController.sourceType = type

//判断是否支持相册

ifUIImagePickerController.isSourceTypeAvailable(.photolibrary) {

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

}

}

//MARK:- UIImagePickerControllerDelegate

func imagePickerController(_ picker:UIImagePickerController,dIDFinishPickingMediawithInfo info: [String :Any]){

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

//当选择的类型是图片

if type=="public.image"

{

let img = info[UIImagePickerControllerOriginalimage]as?UIImage

self.headimg.image =cropToBounds(image: img!)

let imgData =UIImageJPEGRepresentation(self.headimg.image!,0.5)

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

}

}

func imagePickerControllerDIDCancel(_ picker:UIImagePickerController){

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

}

@IBActionfunc headimgTapGesture(_ sender:AnyObject) {

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

}

}

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