iphone之打开图库上传头像或照相保存到图库的必用自定义类——任意控件任意控制器均可使用，简单方便

女爷i 2022-08-08 14:49 99阅读 0赞

步骤如下：

新建此类的代理属性必须遵守的协议：

新建PhotoButtonDelegate.h如下：

//
    //  PhotoButtonDelegate.h
    //  作业整理
    //
    //  Created by apple on 15/9/16.
    //  Copyright (c) 2015年 LiuXun. All rights reserved.
    //
    
    #import <Foundation/Foundation.h>
    @class ImageAndPhotos;
    @protocol PhotoButtonDelegate <NSObject>
    
    -(void) setPhotoButton:(ImageAndPhotos *) imgAndP;
    @end

新建此类如下：

编辑ImageAndPhotos.h如下：

//
    //  ImageAndPhotos.h
    //  作业整理
    //
    //  Created by apple on 15/9/16.
    //  Copyright (c) 2015年 LiuXun. All rights reserved.
    //
    
    #import <Foundation/Foundation.h>
    #import "PhotoButtonDelegate.h"
    @class UIBaseScrollView;
    @interface ImageAndPhotos : NSObject <UIAlertViewDelegate,UIActionSheetDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
    
    @property (nonatomic, strong) UIViewController *controller;
    @property (nonatomic, strong)  UIImage *img;
    @property (nonatomic, strong)  UIButton *btn;
    @property (nonatomic, weak) id<PhotoButtonDelegate> delegate;
    
    
    -(id)initWithControler:(UIViewController *) crtler  AndButton:(UIButton *) button;
    @end

编辑ImageAndPhotos.m如下：

//
    //  ImageAndPhotos.m
    //  作业整理
    //
    //  Created by apple on 15/9/16.
    //  Copyright (c) 2015年 LiuXun. All rights reserved.
    //
    
    #import "ImageAndPhotos.h"
    
    @implementation ImageAndPhotos
    
    -(id)initWithControler:(UIViewController *) crtler  AndButton:(UIButton *) button
    {
        if (self = [super init]) {
            self.controller = crtler;
            self.btn = button;
            [self CameraEvent];
        }
        return self;
    }
    
    
    -(void)CameraEvent
    {
        [self.btn  addTarget:self action:@selector(showActionSheet) forControlEvents:UIControlEventTouchUpInside];
    }
    
    -(void) showActionSheet
    {
        UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照",@"我的相册", nil];
        [actionSheet  showInView:self.controller.view];
      }
    
    // 实现UIActionSheetDelegate协议中监听按钮的方法
    -(void) actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
    {
        if (buttonIndex == 0) {
            [self addCamera];
        }
        else if(buttonIndex == 1)
        {
            [self addPhoto];
        }
        
    }
    
    -(void)addCamera
    {
        // 判断是否可以打开一个相机
        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
            // 创建一个调出拍照的控制器
            UIImagePickerController *picker = [[UIImagePickerController alloc] init];
            picker.delegate = self;
            picker.allowsEditing = YES;
            // 摄像头
            NSLog(@"++++addCamera++++");
            picker.sourceType = UIImagePickerControllerSourceTypeCamera;
            [self.controller presentViewController:picker animated:YES completion:^{
        
            }];
        }
        else
        {
            [self showAlertView];
        }
    }
    -(void) addPhoto
    {     // 相册可以用模拟器打开，但是相机不可以用模拟器打开
        if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
            UIImagePickerController *picker = [[UIImagePickerController alloc] init];
            
            picker.delegate = self;
            picker.allowsEditing = YES;  // 是否可以编辑
            
            // 打开相册选择相片
            picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; //表示管理图库
            [self.controller presentViewController:picker animated:YES completion:nil];
            
        }
        else
        {
            [self showAlertView];
        }
        
    }
    
    -(void)showAlertView
    {
        UIAlertView *alert =[[UIAlertView alloc] initWithTitle:@"提示" message:@"你没有摄像头" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
        [alert show];
    }
    
    // 代理协议中的方法
    // 拍摄完成后,其实是选中图片后的方法要执行的方法，如果是照相的话则选中拍照后的相片
    -(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
        // 得到图片
        self.img = [info objectForKey:UIImagePickerControllerEditedImage];
        // 图片存入图库
        if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
            UIImageWriteToSavedPhotosAlbum(self.img, nil, nil, nil);  // 如果是相机
        }
        
        [self.controller dismissViewControllerAnimated:YES completion:^{
            if ([self.delegate respondsToSelector:@selector(setPhotoButton:)]) {
                [self.delegate setPhotoButton:self];
            }
        }];
        
    }
    
    //选中图片点击cancel按钮后执行的方法
    -(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
    {
        
        [self.controller dismissViewControllerAnimated:YES completion:nil];
    }
    
    
    @end

========================================================  
此类新建完成，在自定义控件中的应用如下：（此自定义控件是一个上传图片的scrollVIew）

新建自定义控件类编辑UIBaseScrollView.h如下

//
    //  UIBaseScrollView.h
    //  作业整理
    //
    //  Created by apple on 15/9/16.
    //  Copyright (c) 2015年 LiuXun. All rights reserved.
    //
    
    #import "UIBaseVIew.h"
    #import "ImageAndPhotos.h"
    
    
    @interface UIBaseScrollView : UIBaseVIew<PhotoButtonDelegate>
    
    @property (nonatomic, strong) NSMutableArray *arrayImgs;
    @property (nonatomic, strong) UIScrollView *scroll;
    @property (nonatomic, strong)  ImageAndPhotos *imgChange;
    @property (nonatomic, strong) UIButton *btnImg;
    @property (nonatomic, strong) UIImageView *imgV;
    -(id)initWithFrame:(CGRect)frame CurrenContr:(UIViewController *) crtl;
    
    @end

编辑定义控件的.m文件如下：

//
    //  UIBaseScrollView.m
    //  作业整理
    //
    //  Created by apple on 15/9/16.
    //  Copyright (c) 2015年 LiuXun. All rights reserved.
    //
    
    #import "UIBaseScrollView.h"
    
    @implementation UIBaseScrollView
    
    -(id)initWithFrame:(CGRect)frame CurrenContr:(UIViewController *) crtl
    {
        if (self = [super initWithFrame:frame]) {
            self.scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
            
            self.btnImg = [[UIButton alloc] initWithFrame:CGRectMake(10, 10, frame.size.height-20, frame.size.height-20)];
            [self.btnImg setImage:[UIImage imageNamed:@"tizhong_photo_increase_bj"] forState:UIControlStateNormal];
           
            self.imgChange = [[ImageAndPhotos alloc] initWithControler:crtl AndButton:self.btnImg];
            self.scroll.showsHorizontalScrollIndicator = YES;
            self.imgChange.delegate = self;
            [self.scroll addSubview:self.btnImg];
            [self addSubview:self.scroll];
        }
        return self;
    }
    
    -(void)setPhotoButton:(ImageAndPhotos *)imgAndP
    {
        NSLog(@"%@&&&&&&&&&",self.imgChange.img);
        if (imgAndP.img) {
            self.imgV =[[UIImageView alloc] initWithFrame: self.btnImg.frame ];
            self.imgV.image = imgAndP.img;
            self.imgV.backgroundColor = [UIColor yellowColor];
            [self.scroll addSubview:self.imgV];
           self.btnImg.frame = CGRectMake(CGRectGetMaxX(self.imgV.frame)+10, self.imgV.frame.origin.y, self.imgV.frame.size.width, self.imgV.frame.size.height);
            self.scroll.contentSize = CGSizeMake(CGRectGetMaxX(imgAndP.btn.frame)+10, 0);
            if (CGRectGetMaxX(self.btnImg.frame)>self.scroll.frame.size.width) {
                self.scroll.contentOffset = CGPointMake(self.btnImg.frame.origin.x-10, 0);
            }
        }
    
    }
    
    @end

在控制器中使用此自定义控件如下：

UIBaseScrollView *det5 = [[UIBaseScrollView alloc] initWithFrame:CGRectMake(20, CGRectGetMaxY(det4.frame)+20, WIDTH-40, 80) CurrenContr:self];

运行结果如下：

![Center][]

在控制器中直接使用此相册类也与此类似，不同之处就是让所在控制器遵守类属性的协议，然后实现即可

在此不再奥数。

[Center]: /images/20220731/f31b28a4c23446fd9ac2e9a77584c650.png