ios - ios TableView List中的三态UIButton

Question

我有学生出勤名单UITableView .其中每个单元格都有 UIButton设置学生出勤率，如 Present , Absent和 Leave点击按钮。我怎样才能在单个按钮上实现这一点。

Answer 1

您可以通过简单地实现以下 @selector 来做到这一点为您的UIButton在 UITableViewCell .

- (void)btnSetMode:(id)sender
{
    UIButton *btn = (UIButton *)sender;
    if (btn.tag == 0)
    {
        [btn setTitle:@"Present" forState:UIControlStateNormal];
        btn.tag = 1;
        // Define your required task...
    }
    else if (btn.tag == 1)
    {
        [btn setTitle:@"Absent" forState:UIControlStateNormal];
        btn.tag = 2;
        // Define your required task...
    }
    else if (btn.tag == 2)
    {
        [btn setTitle:@"Leave" forState:UIControlStateNormal];
        btn.tag = 3;
        // Define your required task...
    }
    else if (btn.tag == 3)
    {
        [btn setTitle:@"Attendance" forState:UIControlStateNormal];
        btn.tag = 0;
        // Define your required task...
    }
}

您的单个按钮将按照您的意愿完成所有必需的任务。