@class MyCustomCell;
@protocol MyCustomCellDelegate
- (void) customCell:(MyCustomCell *)cell button1Pressed:(UIButton *)btn;
@end
@interface MyCustomCell:UItableViewCell {
id<MyCustomCellDelegate> delegate;
}
@property (nonatomic, assign) id<MyCustomCellDelegate> delegate;
@end
在 .m 文件中
@synthesize delegate;
- (void) buttonPressed {
if (delegate && [delegate respondToSelector:@selector(customCell: button1Pressed:)]) {
[delegate customCell:self button1Pressed:button];
}
}
您的视图控制器必须像这样采用此协议
.h文件
#import "MyCustomCell.h"
@interface MyViewController:UIViewController <MyCustomCellDelegate>
.....
.....
@end
cell.delegate = self;
最后，您需要实现协议中的方法。
- (void) customCell:(MyCustomCell *)cell button1Pressed:(UIButton *)btn {
}
非常抱歉我的英语和代码，我是在没有XCODE的情况下从我的电脑上编写的。
我遇到相同的问题，通过对单元格进行子类化并将按钮放置为Outlets解决了该问题，并使用从模型填充单元格的数据方法，同时使用返回当前查看的单元格的方法。
例如，如果你有一个Person类，每个人都有姓名、姓氏和一些朋友。每当你点击单元格中的一个按钮时，特定人的朋友数量会增加1。
_______________DATA SOURCE___________________________
#import <Foundation/Foundation.h>
@interface Person : NSObject
@property (nonatomic, strong) NSString *name;
@property (nonatomic, strong) NSString *comment;
@property (nonatomic) NSInteger numberOfFriends;
+(instancetype)personWithName:(NSString *)aName Surname:(NSString *)aSurname;
@end
#import "Person.h"
@implementation Person
+(instancetype)personWithName:(NSString *)aName Surname:(NSString *)aSurname{
Person *person = [[Person alloc] init];
[person setName:aName];
[person setSurname:aSurname];
[person setNumberOfFriends:0];
return person;
}
@end
_____________________PERSON CELL________________________
#import <UIKit/UIKit.h>
@interface PersonCell : UITableViewCell
@property (strong, nonatomic) IBOutlet UILabel *friendsNum;
@property (strong, nonatomic) IBOutlet UIButton *friendsBtn;
@property (strong, nonatomic) IBOutlet UILabel *nameLabel;
@property (strong, nonatomic) IBOutlet UILabel *surnameLabel;
@end
个人而言，我创建了一个私有的NSArray来保存我的Person对象的名称，还创建了一个私有的NSMutableDictionary来保存我的Person对象，并将键设置为人名。
_____________________PERSON TABLE VIEW________________________
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
PersonCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
NSString *name = [peopleNames objectAtIndex:indexPath.row];
Person *person = [people objectForKey:name];
if(cell == nil)
{
cell = [[PersonCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.nameLabel.text = person.name;
cell.surname.Label.text = person.surname
[cell.friendsButton addTarget:self action:@selector(moreFriends:) forControlEvents:UIControlEventTouchUpInside];
cell.friendsNum.text = [NSString stringWithFormat:@"%i", person.numberOfFriends];
return cell;
}
- (IBAction)moreFriends:(id)sender {
UIButton *btn = (UIButton *)sender;
PersonCell *cell = [self parentCellForView:btn];
Person *person = [people objectForKey:cell.nameLabel.text];
person.numberOfFriends++;
[self.tableView reloadData];
}
-(PersonCell *)parentCellForView:(id)theView
{
id viewSuperView = [theView superview];
while (viewSuperView != nil) {
if ([viewSuperView isKindOfClass:[PersonCell class]]) {
return (PersonCell *)viewSuperView;
}
else {
viewSuperView = [viewSuperView superview];
}
}
return nil;
}
[yourCell.button addTarget:self action:@selector(customActionPressed:) forControlEvents:UIControlEventTouchDown];
然后在你的“customActionPressed:(id) sender”方法中处理按钮点击事件。
//Get the superview from this button which will be our cell
UITableViewCell *owningCell = (UITableViewCell*)[sender superview];
//From the cell get its index path.
NSIndexPath *pathToCell = [myTableView indexPathForCell:owningCell];
//Do something with our path
除非您尚未列出更多因素，否则这可能是对您更好的解决方案。
我有一个教程，可能会更详细地解释http://www.roostersoftstudios.com/2011/05/01/iphone-custom-button-within-a-uitableviewcell/