内置UIControl的iOS原型单元 [英] iOS Prototype Cells with UIControls inside

问题描述

到目前为止，我只需要实现具有预定义设计（正常，副标题等）的原型单元，这不是问题。

So far I´ve only needed to implement prototype cells with pre-defined designs (normal, subtitle, etc.) and it hasn´t been a problem.

现在我需要实现原型单元，其中包含一些控件，如分段开关，开关或任何其他。问题是我无法找到触发的动作是如何实现的以及它们与控件的关系。此外，我还没有找到任何关于如何在单个UITableViewController中实现不同原型单元的示例。

Now I need to implement prototype cells which contain some controls like a segmented switch, a switch or any other. The problem is that I haven´t been able to find out how the actions triggered are implemented and how are they related to the control. Also I heven´t found any example of how different prototype cells inside a single UITableViewController are implemented.

我知道这是一个通用的问题，但我会感谢这里的一些指示。也许有人知道一些文档，教程等等。好吧，任何帮助都会这样做，

I know it´s kind of a generic question, but I´d appreciate some pointers here. Maybe someone knows about some documentation, tutorial, etc. Well, any help would do,

提前进行Thnaks。

Thnaks in advance.

推荐答案

我花了一些时间来了解如何使用原型单元格。如果要访问原型单元格内的用户界面元素，则必须创建UITableViewCell的子类并将其分配给Interface Builder中的原型单元格。
然后你必须手动定义IBOutlet属性，例如：

It took me also a while to understand how to use the prototype cells. If you want to access the user interface elements inside a prototype cell, you have to create a subclass of UITableViewCell and assign it to the prototype cell in Interface Builder. Then you have to define the IBOutlet properties manually e.g.:

@interface OptionSwitchCell : UITableViewCell
@property (weak, nonatomic) IBOutlet UISwitch* switchControl;
@end

之后，您可以通过控制拖动来连接界面元素元素到助手视图中的属性定义。
IBActions可以在拥有的View Controller中定义。您可以控制 - 从界面元素拖动到View Controller头文件并创建操作。在动作实现中，您可能想知道哪个单元格正在触发该动作。我这样做：

After that, you can connect the interface elements through control-dragging from the element to the property definition in the assistant view. The IBActions instead can be defined inside the owning View Controller. You can control-drag from a interface element to the View Controller header file and create an action. Inside the action implementation you will likely want to know which cell was been triggering the action. I do it like this:

@implementation SomeTableViewController

- (IBAction)toggleActivity:(id)sender {
    OptionSwitchCell* cell = (OptionSwitchCell *)[sender superview].superview;
    NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
    ...
}

@end

查找相应单元格和索引路径的另一种解决方案（通过jrturton）：

Another solution for finding the corresponding cell and index path (by jrturton):

- (IBAction)toggleActivity:(id)sender {
    CGPoint hitPoint = [sender convertPoint:CGPointZero toView:self.tableView]; 
    NSIndexPath *hitIndex = [self.tableView indexPathForRowAtPoint:hitPoint];
    OptionSwitchCell* cell = (OptionSwitchCell *)[self.tableView cellForRowAtIndexPath:hitIndex];
    ...
}

虽然这有点古怪，但我还是避风港到目前为止找不到更好的解决方案。希望有所帮助。

Although this is a bit quirky, I haven't found a better solution so far. Hope that helps.

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