iOS 访问手机相册以及从相册获取相片

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原创最新推荐文章于 2026-10-16 09:38:12 发布 1k 阅读 AI 写同款· GEO 优化 ›

Unity3D，获取相册图片，手机拍照 Unity端先新建个项目吧，添加一个Button和两个UIimage吧。之后我们提取的相片会在UIimage上显示。至于为什么要两个，主要是一会我还要进行图片的压缩。然后把小图也显示出来。新建个脚本，代码如下： public void GetBigImage(string filename){ string path="file://"+platformPath+fi 阅读详情

在iOS中经常会需要访问相册图片，在本文总结访问相册的步骤

1.创建UIImagePickerController对象

2.设置该对象的参数以及委托对象

3.实现协议回调方法

特别注意：因为UIImagePickerController继承UINavigationController类，所以需要实现

UIImagePickerControllerDelegate、

 //访问手机相册
    //创建UIImagePickerController对象
    UIImagePickerController *pickController = [[UIImagePickerController alloc] init];
    /**
     设置pickController读取相册资源类型（默认资源）
     共有三种选择：
     UIImagePickerControllerSourceTypePhotoLibrary,
     UIImagePickerControllerSourceTypeCamera,
     UIImagePickerControllerSourceTypeSavedPhotosAlbum
     */
    [pickController setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
    //设置代理
    pickController.delegate = self;
    //视图跳转
    [self presentViewController:pickController animated:YES completion:^{
        NSLog(@"加载图片成功");
    }];
//协议实现
#pragma mark - UIImagePickerControllerDelegate
//选择
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    //UIImagePickerControllerOriginalImage 是框架定义的提取选中的图片资源的 key
    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
    
    _slectImageView.image = image;
    
    [picker dismissViewControllerAnimated:YES completion:nil];
}

//取消选择
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    //取消相册的显示
    [picker dismissViewControllerAnimated:YES completion:nil];
    
}

UINavigationControllerDelegate协议

//获取选择的图片

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info；

//退出访问相册

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker；

示例代码：

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