自定义UITableViewCell 上按钮点击事件处理

1、第一种方式给Button加上tag值

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{



static NSString *identifier = @"Cell";



UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentifier];

if (cell == nil) {

cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];

cell.selectionStyle = UITableViewCellSelectionStyleNone;

}

User *user = _users[indexPath.row];

cell.user = user;

//拍照button

UIButton *photographButton = [UIButton buttonWithType:UIButtonTypeCustom];

photographButton.frame = CGRectMake(221 , 10, 100, 44);

[photographButton setImage:[UIImage imageNamed:@"camera.png"] forState:UIControlStateNormal];

[photographButton addTarget:self action:@selector(photographButtonClicked:) forControlEvents:UIControlEventTouchUpInside];

photographButton.tag = indexPath.row;

[cell.contentView addSubview:photographButton];



return cell;

}

然后在点击事件中取数据，加信息

- (void)photographButtonClicked:(UIButton *)sender{

User *user = _users[sender.tag];

PhotoPickerController *photoPicker = [[PhotoPickerController alloc] init];

photoPicker.user = user;

[self.navigationController pushViewController:photoPicker animated:YES];



}

以上两个方法都是在同一个控制器中。
另外一种，自定义了UITableViewCell，那么就在UITableViewCell里添加一个代理方法。

#import <UIKit/UIKit.h>



@protocol TermCellDelegate <NSObject>



- (void)choseTerm:(UIButton *)button;



@end



@interface TermCell : UITableViewCell



@property (retain, nonatomic) IBOutlet UIButton *checkButton;

@property (retain, nonatomic) IBOutlet UILabel *termLabel;



@property (assign, nonatomic) BOOL isChecked;

@property (assign, nonatomic) id<TermCellDelegate> delegate;



- (IBAction)checkAction:(UIButton *)sender;



@end



#import "TermCell.h"



@implementation TermCell



- (void)awakeFromNib

{

// Initialization code

}



- (void)setSelected:(BOOL)selected animated:(BOOL)animated

{

[super setSelected:selected animated:animated];



// Configure the view for the selected state

}



- (void)layoutSubviews

{

[super layoutSubviews];

if (_isChecked) {

[_checkButton setBackgroundImage:[UIImage imageNamed:@"task_state_checked"] forState:UIControlStateNormal];

} else {

[_checkButton setBackgroundImage:[UIImage imageNamed:@"task_state_unchecked"] forState:UIControlStateNormal];

}

}



- (void)dealloc {

[_checkButton release];

[_termLabel release];

[super dealloc];

}



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

if ([_delegate respondsToSelector:@selector(choseTerm:)]) {

sender.tag = self.tag;

[_delegate choseTerm:sender];

}

}



@end

然后再控制器中实现Cell的代理方法即可

#pragma mark - TermCellDelegate

- (void)choseTerm:(UIButton *)button

{

_clickIndex = button.tag;

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"确定修改学期吗？" message:nil delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil nil];

[alertView show];

}

当然，这里也可以做界面跳转，取数据依然用button的tag值。
第二种，是直接在自定义的Cell里面跳转，这种耦合性比较强。思路先是找到button的父控制器，然后做界面跳转或者其他操作。有这样一个工具方法

#import "UIView+Additions.h"



@implementation UIView (Additions)



- (UIViewController *)viewController

{

UIResponder *next = [self nextResponder];

do {

if ([next isKindOfClass:[UIViewController class]]) {

return (UIViewController *)next;

}



next = [next nextResponder];



} while (next != nil);





return nil;

}

头文件就不写了，很简单的扩展。

[objc] view
plaincopy





- (void)setWeiboModel:(WeiboModel *)weiboModel

{

if (_weiboModel != weiboModel) {

[_weiboModel release];

_weiboModel = [weiboModel retain];

}



__block WeiboCell *this = self;

_userImage.touchBlock = ^{

NSString *nickName = this.weiboModel.user.screen_name;

UserViewController *userCtrl = [[UserViewController alloc] init];

userCtrl.userName = nickName;

[this.viewController.navigationController pushViewController:userCtrl animated:YES];

[userCtrl release];

};



}