从其他视图访问表视图的按钮 [英] Accessing a button of a table view from other view

问题描述

我如何从任何其他视图访问视图中存在的按钮.让我详细说明一下，我有两个视图控制器A和B.在视图A中，我在表视图中有一个按钮，例如button1.我要访问我试图从另一个视图中查看表视图中的那个按钮.请帮忙.我尝试创建A类的对象，然后编写[objA.tableview button1然后我设置图像]，但是它没有用.请帮助.任何帮助将不胜感激.

How can i access a button which is present in a view ,from any other view.Let me elaborate i have two view controller A and B.in view A i have a button inside table view say button1 .I want to access that button inside the table view from my other view.Please help.I tried creating an object of class A and then write [objA.tableview button1 then i set image ] but it hasnt worked .Please help. Any help will be appreciated.

谢谢， 克里斯蒂

推荐答案

您可以尝试为此按钮添加标签(确保它是唯一的).

You can try this give a tag to your button (make sure it is unique).

假设您的按钮带有标签45；并且您已经在表格视图中做到了.

Let say your button has tag 45; and you have made it in your table view.

现在，在另一种方法中，您想使用该按钮，如下所示:-

Now in another method you want to use your that button like this:-

-(void)deletePostMethod
{
    UIButton *button=(UIButton *)[self.view viewWithTag:49];
    [button setBackgroundColor:[UIColor redColor]];
    NSLog(@"button=%@",button);
}

编辑答案:-

- (UITableViewCell *)tableView:(UITableView *)tablefirst cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    // I  have added a button in my table view in first row
    if (indexPath.row==0) {
        UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
        [btn setFrame:CGRectMake(0, 0, 40, 30)];
        [btn addTarget:self action:@selector(deletePostMethod) forControlEvents:UIControlEventTouchUpInside];
        btn.tag=579;
        [cell.contentView addSubview:btn];
    }
        return cell;
}

在该按钮上单击方法

-(void)deletePostMethod
{
    UIButton *button=(UIButton *)[self.view viewWithTag:579];
    [button setBackgroundColor:[UIColor redColor]];
    NSLog(@"button=%@",button);
}

点击此按钮按钮后，背景色设置为红色.

After clicking this button button background color set to red.

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