(IOS)앨범,사진찍어서 이미지 가저오기

objectiv c

 

info.plist

    <key>NSPhotoLibraryAddUsageDescription</key>
    <string>Message requesting the ability to add to the photo library</string>
    <key>NSPhotoLibraryUsageDescription</key>
    <string>This app requires access to the photo library.</string>
    <key>NSCameraUsageDescription</key>
    <string>This app requires access to the camera.</string>

ImagePickerManager.h

#import <UIKit/UIKit.h>
#import <Photos/Photos.h>

@interface ImagePickerManager : NSObject<UINavigationControllerDelegate,UIImagePickerControllerDelegate>
+ (ImagePickerManager*)store;
-(void)getGallery:(UIViewController*)viewcontroller
                    pickImageHandler:(void (^)(UIImage*))pickImageHandler
                    cancelHandler:(void (^)(void))cancelHandler;
-(void)getCamera:(UIViewController*)viewcontroller
                    pickImageHandler:(void (^)(UIImage*))pickImageHandler
                    cancelHandler:(void (^)(void))cancelHandler;
@end

ImagePickerManager.m

#import "ImagePickerManager.h"

static ImagePickerManager *_store;

@interface ImagePickerManager(){
    UIImagePickerController *picker;
    void (^pickImageHandler)(UIImage*);//이미지 콜백
    void (^cancelHandler)(void);//취소 콜백
}

@end
@implementation ImagePickerManager
+ (ImagePickerManager *) store{
    if (!_store){
        _store = [[ImagePickerManager alloc] init];
    }
    return _store;
}

- (instancetype)init
{
    self = [super init];
    if (self) {
        picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
    }
    return self;
}

//앨범에서 가저오기
-(void)getGallery:(UIViewController*)viewcontroller pickImageHandler:(void (^)(UIImage*))pickImageHandler cancelHandler:(void (^)(void))cancelHandler {
    self->pickImageHandler = pickImageHandler;
    self->cancelHandler = cancelHandler;
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [viewcontroller presentViewController:picker animated:true completion:nil];
}
//카메라에서 가저오기
-(void)getCamera:(UIViewController*)viewcontroller pickImageHandler:(void (^)(UIImage*))pickImageHandler cancelHandler:(void (^)(void))cancelHandler {
    self->pickImageHandler = pickImageHandler;
    self->cancelHandler = cancelHandler;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    [viewcontroller presentViewController:picker animated:true completion:nil];
}

#pragma mark - imagePicker extenstion
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
    if (cancelHandler){
        dispatch_async(dispatch_get_main_queue(), ^{
            self->cancelHandler();
        });
    }

    [picker dismissViewControllerAnimated:true completion:nil];
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<UIImagePickerControllerInfoKey,id> *)info{
    UIImage *image =(UIImage*)info[UIImagePickerControllerOriginalImage];
    
    if (pickImageHandler){
        dispatch_async(dispatch_get_main_queue(), ^{
            self->pickImageHandler(image);
        });
    }
    
    [picker dismissViewControllerAnimated:true completion:nil];
}

@end

 

사용 방법

//카메라
-(void)getCamera{
    [ImagePickerManager.store getCamera:self pickImageHandler:^(UIImage * image) {
         //get image
    } cancelHandler:^{
		//user cancel
    }];
}
//앨범
-(void)getAlbum{
    [ImagePickerManager.store getGallery:self pickImageHandler:^(UIImage * image) {
       //get image
    } cancelHandler:^{
        //user cancel
    }];
}

---

swift

 

ImagePickerManager.class

import UIKit


class ImagePickerManager: NSObject, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    var picker = UIImagePickerController();
    var alert = UIAlertController(title: "Choose Image", message: nil, preferredStyle: .actionSheet)
    var viewController: UIViewController?
    var pickImageCallback : ((UIImage) -> ())?;
    var pickImageCancelCallback : (() -> ())?;
    override init(){
        super.init()
    }

    func pickImage(_ viewController: UIViewController, _ callback: @escaping ((UIImage) -> ())) {
        pickImageCallback = callback;
        self.viewController = viewController;

        let cameraAction = UIAlertAction(title: "Camera", style: .default){
            UIAlertAction in
            self.openCamera()
        }
        let galleryAction = UIAlertAction(title: "Gallery", style: .default){
            UIAlertAction in
            self.openGallery()
        }
        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel){
            UIAlertAction in
        }

        // Add the actions
        picker.delegate = self
        alert.addAction(cameraAction)
        alert.addAction(galleryAction)
        alert.addAction(cancelAction)
        alert.popoverPresentationController?.sourceView = self.viewController!.view
        viewController.present(alert, animated: true, completion: nil)
    }
    
    func pickImage(_ viewController: UIViewController, _ callback: @escaping ((UIImage) -> ()), _ cancelCallback:@escaping ()->()) {
        pickImageCallback = callback;
        pickImageCancelCallback = cancelCallback;
        
        self.viewController = viewController;
        
        let cameraAction = UIAlertAction(title: "Camera", style: .default){
            UIAlertAction in
            self.openCamera()
        }
        let galleryAction = UIAlertAction(title: "Gallery", style: .default){
            UIAlertAction in
            self.openGallery()
        }
        let cancelAction = UIAlertAction(title: "Cancel", style: .cancel){
            UIAlertAction in
        }

        // Add the actions
        picker.delegate = self
        alert.addAction(cameraAction)
        alert.addAction(galleryAction)
        alert.addAction(cancelAction)
        alert.popoverPresentationController?.sourceView = self.viewController!.view
        viewController.present(alert, animated: true, completion: nil)
    }
    func openCamera(){
        alert.dismiss(animated: true, completion: nil)
        if(UIImagePickerController.isSourceTypeAvailable(.camera)){
            picker.sourceType = .camera
            self.viewController!.present(picker, animated: true, completion: nil)
        } else {
            let alertWarning = UIAlertView(title:"Warning", message: "You don't have camera", delegate:nil, cancelButtonTitle:"OK", otherButtonTitles:"")
            alertWarning.show()
        }
    }
    func openGallery(){
        alert.dismiss(animated: true, completion: nil)
        picker.sourceType = .photoLibrary
        self.viewController!.present(picker, animated: true, completion: nil)
    }


    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        pickImageCancelCallback!()
        picker.dismiss(animated: true, completion: nil)
    }

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        picker.dismiss(animated: true, completion: nil)
        guard let image = info[.originalImage] as? UIImage else {
            fatalError("Expected a dictionary containing an image, but was provided the following: \(info)")
        }
        pickImageCallback?(image)
    }



    @objc func imagePickerController(_ picker: UIImagePickerController, pickedImage: UIImage?) {
        
    }

}

 

사용법

ImagePickerManager().pickImage(self, { img in
	//get image
}) {
	//user cancel
}

 

 

결론 : swift가 짱이다..