Question

如何检测tableview单元格中的多个按钮，我的疑问是示例我在单元格中有3个按钮如果我点击一个按钮该按钮将改变颜色，如果我单击indexpath.row = 1单元格按钮该按钮将着色还需要改变帮助我

Answer 1

使用section＆amp;组合为每个按钮分配标签。排..

当分配给按钮的方法被调用时，使用＆＃39;％＆＃39; ＆安培; ＆＃39; /＆＃39;进一步操纵。

如果您在执行方面遇到任何困难，请告诉我。

Answer 2

我确实喜欢这个：

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

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];

    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                       reuseIdentifier:MyIdentifier];
    }

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame = CGRectMake(10.0, 0.0, self.tableView.frame.size.width/4, 40.0);
    button.tag = 100 + indexPath.row*total_buttons_in_a_row;
    [button setTitle:[NSString stringWithFormat:@"%ld",(long)button.tag] forState:UIControlStateNormal];
    [button addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
    [cell addSubview:button];

    UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button2.frame = CGRectMake(10.0+self.tableView.frame.size.width/4+10.0, 0.0, self.tableView.frame.size.width/4, 40.0);
    button2.tag = 100 + indexPath.row*total_buttons_in_a_row + 1;
    [button2 setTitle:[NSString stringWithFormat:@"%ld",(long)button2.tag] forState:UIControlStateNormal];
    [button2 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
    [cell addSubview:button2];

    UIButton *button3 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button3.frame = CGRectMake(10.0+self.tableView.frame.size.width/4*2+10.0, 0.0, self.tableView.frame.size.width/4, 40.0);
    button3.tag = 100 + indexPath.row*total_buttons_in_a_row + 2;
    [button3 setTitle:[NSString stringWithFormat:@"%ld",(long)button3.tag] forState:UIControlStateNormal];
    [button3 addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
    [cell addSubview:button3];

    return cell;
}

-(void)btnClicked:(UIButton *)sender{
    id selectedButton = [self.view viewWithTag:sender.tag];
    if ([selectedButton backgroundColor] == [UIColor redColor]) {
        [selectedButton setBackgroundColor:[UIColor clearColor]];

    }else{
        [selectedButton setBackgroundColor:[UIColor redColor]];
    }
}

total_buttons_in_a_row是Int。在您的情况下，在viewDidLoad total_buttons_in_a_row=3

中定义它

P.S - 根据您的需要设置按钮CGRectMake。

Answer 3

到你的CustomCell.h＆amp;在#import下面添加此代码。

@protocol CustomCellDelegate <NSObject>
- (void)buttonActionwith :(NSIndexPath *)indexPath;
@end

然后在@interface CustomCell：UITableViewCell

下面添加此代码

//Manual Properties
@property (strong, nonatomic) NSIndexPath *buttonIndexPath;

//Delegate
@property (nonatomic, weak) id <CustomCellDelegate> delegate;

使用此NSIndexPath是为了识别选择哪个单元用户。

然后转到CustomCell.m＆amp;在您的按钮IBAction方法中添加此代码。

[self.delegate buttonActionwith:self.buttonIndexPath];

这行代码的含义是，当用户TouchUpIns使用委托方法调用单元格buttonAction中的Button时，如果你在UITiewView的UIViewController中设置了这个CustomCellDelegate，那个委托方法也将在该ViewController中调用。

现在转到MainViewController.h＆amp;加 CustomCellDelegate ＆安培;之后会是这样的，

@interface MainViewController : UIViewController <CustomCellDelegate,,UITableViewDataSource,UITableViewDelegate>

在- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath中创建自定义UITableViewCell时，不要忘记在返回单元格之前添加此行代码;

//Set Cell Values Here
cell.delegate = self; //Setting delegate to self
cell.buttonIndexPath = indexPath;

修改后的- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath将如下所示，

static NSString *MyIdentifier = @"MyIdentifier"; //Set Identifier for cell

        CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier: MyIdentifier]; //init CustomCell

        if (cell == nil) { //Check cell is nill or not
            NSArray *nib;
            nib = [[NSBundle mainBundle] loadNibNamed:@"CustomCell"
                                                owner:self options:nil]; //if cell is nil add CustomCell Xib

            for (id oneObject in nib) if ([oneObject isKindOfClass:[CustomCell class]])
                cell = (CustomCell *)oneObject;
        }

        //Set Cell Values Here
        cell.buttonIndexPath = indexPath

        return cell;

最后在MainViewController.m中添加此方法

#pragma mark - SwipeableCellDelegate
- (void)buttonActionwith:(NSIndexPath *)indexPath { //Delegate method
    NSLog(@"Button Clicks at index %ld",(long)indexPath.row);
}

这是在Cell中添加单个按钮的方法。您可以使用此方法向单元格添加更多按钮。

如何检测tableview单元格中的多个按钮

3 个答案: