iOS开发中访问相册摄像像头

迷南。 2022-08-27 02:27 188阅读 0赞

iOS开发中访问相册摄像像头

源码下载地址[http://download.csdn.net/download/jingjingxujiayou/7270479][http_download.csdn.net_download_jingjingxujiayou_7270479]

在AppDelegate.m文件中

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    {
        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        // Override point for customization after application launch.
        self.window.backgroundColor = [UIColor whiteColor];
        [self.window makeKeyAndVisible];
        self.window.rootViewController = [[dateViewController alloc]init];
        return YES;
    }

dateViewController.h

#import <UIKit/UIKit.h>
    
    @interface dateViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationBarDelegate>
    @property(nonatomic,retain)UIImageView* imageview1;
    @property(nonatomic,retain)UIImagePickerController* imagepicker;
    @end

dateViewController.m

//
    //  dateViewController.m
    //  datepick
    //
    //  Created by 5_2 on 14-4-29.
    //  Copyright (c) 2014年 Frountion. All rights reserved.
    //
    
    #import "dateViewController.h"
    
    @interface dateViewController ()
    
    @end
    
    @implementation dateViewController
    @synthesize imageview1,imagepicker;
    
    - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
    {
        self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
        if (self) {
            // Custom initialization
        }
        return self;
    }
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
    	// Do any additional setup after loading the view.
        
        //----------1 从网络加载图片
        imageview1 = [[UIImageView alloc]initWithFrame:CGRectMake(10, 50, 300, 200)];
        imageview1.backgroundColor = [UIColor yellowColor];
        [self.view addSubview:imageview1];
        NSURL* url = [[NSURL alloc]initWithString:@"https://www.google.com.hk/images/srpr/logo11w.png"];
        NSData* data = [NSData dataWithContentsOfURL:url];
        //把data转成image
        UIImage* image = [UIImage imageWithData:data];
        //显示图片
        imageview1.image = image;
        
        //把图片转化为数据
        NSData* imagedata = UIImageJPEGRepresentation(image, 1);
        NSLog(@"%d",imagedata.length);
        
        //保存到相册里面，这个可以到模拟器里的相册产查看的。
        UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
        
        //---------2 相册的访问
        
        UIButton *buttonphoto = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        buttonphoto.tag = 100;
        buttonphoto.frame = CGRectMake(50, 250, 80, 50);
        [buttonphoto setTitle:@"访问相册" forState:UIControlStateNormal];
        [buttonphoto addTarget:self action:@selector(look:) forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:buttonphoto];
        
        //---------3 摄像头的访问
        UIButton *buttoncamera = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        buttoncamera.tag = 200;
        buttoncamera.frame = CGRectMake(50, 310, 80, 50);
        [buttoncamera setTitle:@"访问摄像头" forState:UIControlStateNormal];
        [buttoncamera addTarget:self action:@selector(look:) forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:buttoncamera];
        
        
    }
    
    /*-(void)look:(UIButton*)button
    {
            UIImagePickerController* imagepicker = [[UIImagePickerController alloc]init];
            imagepicker.delegate = self;
            //访问相册类型的类型
            //UIImagePickerControllerSourceTypePhotoLibrary,
            //UIImagePickerControllerSourceTypeCamera, =====  访问摄像头
            //UIImagePickerControllerSourceTypeSavedPhotosAlbum ======= 只能访问第一列的图片
            imagepicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            //以摩擦动画的方式显示
            [self presentViewController:imagepicker animated:YES completion:^{
                
            }];
    
            if (button.tag == 200) {
            //UIImagePickerControllerCameraDeviceFront === 前摄像头
            //UIImagePickerControllerCameraDeviceRear === 后摄像头
            BOOL isCamrma = [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear];
            if (!isCamrma) {
                NSLog(@"没有摄像头");
                return;
            }
            //摄像头
            imagepicker.sourceType = UIImagePickerControllerSourceTypeCamera;
            //允许编辑
            imagepicker.allowsEditing =YES;
        }
    }*/
    
    -(void)look:(UIButton*)button
    {
        if (button.tag == 100) {
            imagepicker = [[UIImagePickerController alloc]init];
            imagepicker.delegate = self;
            //访问相册类型的类型
            //UIImagePickerControllerSourceTypePhotoLibrary,
            //UIImagePickerControllerSourceTypeCamera, =====  访问摄像头
            //UIImagePickerControllerSourceTypeSavedPhotosAlbum ======= 只能访问第一列的图片
            imagepicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
            //以摩擦动画的方式显示
            [self presentViewController:imagepicker animated:YES completion:^{
                
            }];
    
        }else {
            
            //注意摄像头的访问需要在真机上进行
            
            //UIImagePickerControllerCameraDeviceFront === 前摄像头
            //UIImagePickerControllerCameraDeviceRear === 后摄像头
            BOOL isCamrma = [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear];
            if (!isCamrma) {
                NSLog(@"没有摄像头");
                return;
            }
            //摄像头
            imagepicker.sourceType = UIImagePickerControllerSourceTypeCamera;
            //允许编辑
            imagepicker.allowsEditing =YES;
        }
    }
    
    //---------2 相册的访问
    #pragma mark - UIImagePickerControllerDelegate
    
    
    //相册选中之后调用
    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
        //UIImagePickerControllerOriginalImage === 取原始图片
        //UIImagePickerControllerEditedImage === 去编辑以后的图片
        UIImage* image = [info objectForKey:UIImagePickerControllerEditedImage];
        imageview1.image = image;
        NSLog(@"info = %@",info);
        [picker dismissViewControllerAnimated:YES completion:nil];
    }
    //取消按钮的点击事件
    -(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
    {
        [picker dismissViewControllerAnimated:YES completion:NULL];
    }
    //将图片保存
    - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
    {
        NSLog(@"error = %@",error);
    }
    
    
    
    - (void)didReceiveMemoryWarning
    {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end

[http_download.csdn.net_download_jingjingxujiayou_7270479]: http://download.csdn.net/download/jingjingxujiayou/7270479