目标c - 处理自定义UITableViewCell按钮的按钮触摸事件的最佳实践

处理自定义 UITableViewCell 按钮的按钮触摸事件的最佳做法是什么？

What is best practice to handle a button touch event for a button of a custom UITableViewCell?

我的课程：
MyViewController ， MyCustomCell

我可以想到三个选项：

第一个选项 - 拥有按钮作为 MyCustomCell 的属性，然后使用 MyViewController .m文件中添加目标$ c> MyViewController 作为目标。

First option- Have the button as a property of MyCustomCell, and then add a target to it in the MyViewController .m file with MyViewController as the target.

MyViewController .m文件

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"customCell";

    MyCustomCell *cell = (MyCustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
    cell = [[[MyCustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    [cell.theButton addTarget:self
                       action:@selector(theButtonTapped:)
             forControlEvents:UIControlEventTouchUpInside];
    }

    // Configure the cell...    
    [self configureCell:cell atIndexPath:indexPath];

    return cell;
}

- (void)theButtonTapped:(UIButton *)sender
{
    MyCustomCell *selectedCell = (MyCustomCell *)sender.superview;

    if (selectedCell) {
        NSIndexPath *indexPath = [self.tableView indexPathForCell:selectedCell];
        MyModel *selectedModel = [self.model objectAtIndex:indexPath.row]; 

        // do something with the model...
    }
}

第二个选项 - 如果自定义单元格是在IB中创建的，则将nib文件的所有者设置为 MyViewController ，实现 buttonTapped： MyViewController 中的方法，并将按钮的Touch Up Inside事件连接到 buttonTapped：方法。

Second option- If the custom cell was made in IB, Set the nib File's Owner to be MyViewController, implement buttonTapped: method in MyViewController and connect the button's Touch Up Inside event to the buttonTapped: method.

第三个选项 - 如果自定义单元格未在IB中制作，则将目标添加到按钮中以 MyCustomCell 作为目标的 MyCustomCell .m文件。

定义 MyCustomCellDelegate add @property（nonatomic，assign）id< MyCustomCellDelegate>委托到 MyCustomCell 并在按下按钮时调用此委托。

设置 MyViewController 作为创建单元格时的单元格委托并实现 MyCustomCellDelegate 协议。

Third option- if the custom cell wasn't made in IB, add a target to the button in the MyCustomCell .m file with MyCustomCell as the target.
Define a MyCustomCellDelegate add @property (nonatomic, assign) id<MyCustomCellDelegate> delegate to MyCustomCell and call this delegate when button tapped.
Set MyViewController as the cell's delegate when creating cells and implement the MyCustomCellDelegate protocol.

MyCustomCell .h文件

@class MyCustomCell;  

@protocol MyCustomCellDelegate <NSObject>
- (void)buttonTappedOnCell:(MyCustomCell *)cell;
@end

@interface MyCustomCell : UITableViewCell

@property (nonatomic, retain) UIButton *theButton;
@property (nonatomic, assign) id<MyCustomCellDelegate> delegate;

@end

MyCustomCell .m文件

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        // Initialization code
        self.theButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        self.theButton.frame = CGRectMake(10,10,50,30);
        [self addSubview:self.theButton];

        [self.theButton addTarget:self
                           action:@selector(theButtonTapped:)
                 forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}

- (void)theButtonTapped:(UIButton *)sender
{
    [self.delegate buttonTappedOnCell:self];
}

MyViewController .m file

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"customCell";

    MyCustomCell *cell = (MyCustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[MyCustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

        cell.delegate = self;
    }

    // Configure the cell...    
    [self configureCell:cell atIndexPath:indexPath];

    return cell;
}

- (void)buttonTappedOnCell:(MyCustomCell *)selectedCell
{
    if (selectedCell) {
        NSIndexPath *indexPath = [self.tableView indexPathForCell:selectedCell];
        MyModel *selectedModel = [self.model objectAtIndex:indexPath.row];

        // do something with the model...
    }
}