IOS Swift 5.0 獲取圖片-相冊、拍照

一、創建項目

這個很簡單，創建好了看下面的就行了

 

二、添加權限

拍照和獲取相冊都需要先設置權限

 

三、佈局

實現一個簡單的佈局，同一個界面，一個按鈕 Button，一張圖片 ImageView

 

四、實現代碼

1、要繼承 UIImagePickerControllerDelegate, UINavigationControllerDelegate

2、拍照或從相冊選擇圖片都是通過 UIImagePickerController.init() 

        設置 sourceType = .camera 是拍照

        設置 sourceType = .photoLibrary 是從相冊選擇圖片

3、相冊選擇或拍照都是通過 imagePickerController 方法返回，如果對圖片還要做處理也可以在這裏做

import UIKit

class ImageController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate{

    //圖片展示
    @IBOutlet weak var image: UIImageView!
    var takingPicture:UIImagePickerController!
    
    //點擊按鈕彈出拍照、相冊的選擇框
    @IBAction func getImage(_ sender: Any) {
        let actionSheetController = UIAlertController()
        
        let cancelAction = UIAlertAction(title: "取消", style: UIAlertAction.Style.cancel) { (alertAction) -> Void in
            print("Tap 取消 Button")
        }
        
        let takingPicturesAction = UIAlertAction(title: "拍照", style: UIAlertAction.Style.destructive) { (alertAction) -> Void in
            self.getImageGo(type: 1)
        }
        
        let photoAlbumAction = UIAlertAction(title: "相冊", style: UIAlertAction.Style.default) { (alertAction) -> Void in
            self.getImageGo(type: 2)
        }
                
        actionSheetController.addAction(cancelAction)
        actionSheetController.addAction(takingPicturesAction)
        actionSheetController.addAction(photoAlbumAction)
        
        //iPad設備浮動層設置錨點
        actionSheetController.popoverPresentationController?.sourceView = sender as? UIView
        //顯示
        self.present(actionSheetController, animated: true, completion: nil)

    }
    
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }
    
    //去拍照或者去相冊選擇圖片
    func getImageGo(type:Int){
        takingPicture =  UIImagePickerController.init()
        if(type==1){
            takingPicture.sourceType = .camera
            //拍照時是否顯示工具欄
            //takingPicture.showsCameraControls = true
        }else if(type==2){
            takingPicture.sourceType = .photoLibrary
        }
        //是否截取，設置爲true在獲取圖片後可以將其截取成正方形
        takingPicture.allowsEditing = false
        takingPicture.delegate = self
        present(takingPicture, animated: true, completion: nil)
    }
    
    //拍照或是相冊選擇返回的圖片
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        takingPicture.dismiss(animated: true, completion: nil)
        if(takingPicture.allowsEditing == false){
            //原圖
            image.image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage
        }else{
            //截圖
            image.image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage
        }

    }
    
}

 

五、拍照界面改成中文

完成上面的步驟就能夠實現簡單的通過拍照、相冊獲取圖片了

但是，我們會發現，選擇拍照時，上面的操作步驟文字都是英文的，我們可以把它改成中文

如下圖所示，選中項目 -> PEOJECT -> Info -> Localization

點擊 + 將 Chinese，Simplified 添加到 Localization 重新運行項目就可以看到拍照界面都是中文了