从UITableViewCell iOS打开相机 [英] open camera from UITableViewCell iOS

问题描述

我有一个UITableView和一个UITableViewCell。在每个UITableViewCell中，我要打开图库或单击图像。我通常会像这样显示UIImageviewController

I have a UITableView and a UITableViewCell. In every UITableViewCell I want to open gallery or click an image. I normally present UIImageviewController like

- (IBAction)takePhoto:(UIButton *)sender {

UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;

  [self presentViewController:picker animated:YES completion:NULL];
}

如何从单元格中显示？

Misha：）

推荐答案

正确的解决方案是使用正确的MVC设计。让您的自定义单元格为其自己的委托方法定义协议。将表视图控制器设置为每个单元格的委托。

The proper solution is to use proper MVC design. Have your custom cell define a protocol for its own delegate methods. Setup your table view controller to be each cell's delegate.

协议方法之一就是要求委托代表其代表视图控制器的方法。

One of the protocol methods would be a method asking the delegate to present a view controller on its behalf.

您的单元格协议应具有以下方法：

Your cell protocol would have a method such as:

- (void)cell:(CustomTableViewCell *)cell presentViewController:(UIViewController *)controller;

自定义单元格的 takePhoto 方法，您可以执行某些操作像这样：

Your custom cell's takePhoto method you do something like this:

- (IBAction)takePhoto:(UIButton *)sender {
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;

    [self.delegate cell:self presentViewController:picker];        
}

然后您的表视图控制器将实现该方法：

Then your table view controller would implement the method:

- (void)cell:(CustomTableViewCell *)cell presentViewController:(UIViewController *)controller {
    [self presentViewController:controller animated:YES completion:NULL];
}

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