1) 申请相机权限:
<key>NSCameraUsageDescription</key><string>This app will use camera.</string>
2) 申请相册权限
<key>NSPhotolibraryUsageDescription</key><string>You can select photos to attach to reports.</string>
在xcode中拖一个UIImagevIEw 控件
继承下面两个类
UINavigationControllerDelegate
UIImagePickerControllerDelegate
实现方法:
class yourController:...,UINavigationControllerDelegate,UIImagePickerControllerDelegate {...}
1. 拍照按钮实现:
@IBAction func your_take_photo_action(_ sender: UIbutton) { imagePicker = UIImagePickerController() imagePicker.delegate = self imagePicker.sourceType = .camera present(imagePicker,animated: true,completion: nil) }
2. 保存相册
@IBAction func save(_ sender: AnyObject) { UIImageWritetoSavedPhotosAlbum(imageTake.image!,self,#selector(image(_:dIDFinishSavingWithError:contextInfo:)),nil) }
3. 实现以下两个开启相机和选中图片的回调函数
func image(_ image: UIImage,dIDFinishSavingWithError error: Error?,contextInfo: UnsafeRawPointer) { if let error = error { // we got back an error! let ac = UIAlertController(Title: "Save error",message: error.localizedDescription,preferredStyle: .alert) ac.addAction(UIAlertAction(Title: "OK",style: .default)) present(ac,animated: true) } else { let ac = UIAlertController(Title: "Saved!",message: "Your altered image has been saved to your photos.",animated: true) } } //MARK: - Done image capture here func imagePickerController(_ picker: UIImagePickerController,dIDFinishPickingMediawithInfo info: [String : Any]) { imagePicker.dismiss(animated: true,completion: nil) imageTake.image = info[UIImagePickerControllerOriginalimage] as? UIImage }
最后如果希望转换成base64,可以使用以下函数
func UIimgToBase64(img:UIImage) ->String{ let imageData:NSData = UIImagePNGRepresentation(img)! as NSData let strBase64 = imageData.base64EncodedString(options: .lineLength64Characters) return strBase64 }总结
以上是内存溢出为你收集整理的Swift 3 实现拍照功能全部内容,希望文章能够帮你解决Swift 3 实现拍照功能所遇到的程序开发问题。
如果觉得内存溢出网站内容还不错,欢迎将内存溢出网站推荐给程序员好友。
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)