在tableview页脚中添加按钮 [英] Add button in tableview footer

问题描述

我在一个viewcontroller中有tableview。我有一节。我想在页脚中添加按钮。我已编写此代码，但页脚视图未显示。

I have tableview in one viewcontroller. I have one section in that. I want to add button in footer. I have written this code but footer view is not displaying.

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{

    UIView *footerView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
    UIButton *addcharity=[UIButton buttonWithType:UIButtonTypeCustom];
    [addcharity setTitle:@"Add to other" forState:UIControlStateNormal];
    [addcharity addTarget:self action:@selector(addCharity:) forControlEvents:UIControlEventTouchUpInside];
    addcharity.frame=CGRectMake(0, 0, 40, 30);
    [footerView addSubview:addcharity];
    return footerView;

}

我还在委托方法中设置了页脚100的高度。

I have also set height of footer 100 in its delegate method.

截图：
最初我有3个数据。但是当我搜索特定数据并且结果将在当时的tableview中显示时，我有一个数据，因此当时页脚位置发生了变化。我想在最初的地方修剪页脚。

screenshots: Initially i have 3 data. But when I search for particular data and result will be displayed in tableview at that time I have one data so at that time footer location changed. I want to to fix footer at initial place.

< img src =https://i.stack.imgur.com/MEe1r.pngalt =在此处输入图像说明>

编辑：

作为替代解决方案，可以通过在末尾添加额外的单元格来添加按钮。

As an alternative solution one can add button by adding extra cell at the end.

推荐答案

每 Apple的文档你必须还实现 heightForFooterInSection 方法，否则你的 viewForFooterInSection 不会这样做任何事情。

Per Apple's Docs you must also implement the heightForFooterInSection method, otherwise your viewForFooterInSection wouldn't do anything.

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
      return 100.0f;
}

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    if(tableView == myListTableview)  //Here you can make decision 
    {
       UIView *footerView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
       UIButton *addcharity=[UIButton buttonWithType:UIButtonTypeCustom];
       [addcharity setTitle:@"Add to other" forState:UIControlStateNormal];
       [addcharity addTarget:self action:@selector(addCharity:) forControlEvents:UIControlEventTouchUpInside];
       [addcharity setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];  //Set the color this is may be different for iOS 7
       addcharity.frame=CGRectMake(0, 0, 130, 30); //Set some large width for your title 
       [footerView addSubview:addcharity];
       return footerView;
    }
}

- (void)addCharity:(id)sender
{
      NSLog(@"add to charity");
}

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