【iOS新手开发之旅】使用系统相机和相册

竹林风

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【iOS新手开发之旅】   http://www.sufeinet.com/thread-24000-1-1.html

首先要打开项目工程里面的相机和相册权限

找到项目中的info.plist 添加如下两个权限设置



1.调用系统相机

[Objective-C] 纯文本查看 复制代码

- (void)openCamera{
    
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    
    //实现协议<UIImagePickerControllerDelegate,UINavigationControllerDelegate>
    picker.delegate = self;
    
    picker.allowsEditing = YES; //可编辑
    
    //判断是否可以打开照相机
    
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
        //摄像头
        
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
        
        [self presentViewController:picker animated:YES completion:nil];
        
    }else{
        NSLog(@"没有摄像头");
    }
}

2.打开相册

[Objective-C] 纯文本查看 复制代码

/**
 
 *  打开相册
 
 */

-(void)openPhotoLibrary

{
    
    // Supported orientations has no common orientation with the application, and [PUUIAlbumListViewController shouldAutorotate] is returning YES
    // 进入相册
    
    if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
    {
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc]init];
        
        imagePicker.allowsEditing = YES;
        
        imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        
        imagePicker.delegate = self;
        
        [self presentViewController:imagePicker animated:YES completion:^{
            NSLog(@"打开相册");
        }];
        
    }else{
       NSLog(@"不能打开相册");
    }
}

实现代理方法

[Objective-C] 纯文本查看 复制代码

#pragma mark - UIImagePickerControllerDelegate

// 拍照完成回调

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{
    
    NSLog(@"finish..");

    NSString *type = [info objectForKey:UIImagePickerControllerMediaType];
    //当选择的类型是图片
    if ([type isEqualToString:@"public.image"])
    {
//        __weak typeof(self)weakSelf = self;
        [picker dismissViewControllerAnimated:YES completion:^{
            UIImage* image = [info objectForKey:UIImagePickerControllerEditedImage];
            self->_imgPicker.image = image;
        }];
        
    }
    
}

//进入拍摄页面点击取消按钮

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{
    
    [self dismissViewControllerAnimated:YES completion:nil];
    
}

运行结果：



附件： Test-CameraPhoto.zip (158.26 KB, 下载次数: 0)

2018-12-10 15:06 上传

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下一篇  iOS传感器加速计和陀螺仪

竹林风

相机是只能在真机中使用的，模拟器是不能用的。

竹林风

self->_imgPicker.image = image;

这里如果直接这样写：_imgPicker.image = image;会报下面的警告：


去除方法 第一种可以用上面的写法，还有一种就是

Building Settings
CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF=NO

站长苏飞

我只是路过打酱油的。

Amy

强烈支持楼主ing……

惜

我只是路过打酱油的。