ios - Xcode 根据按钮在新 View 中加载数据

Question

我有一个 View ，其中包含大量按钮，所有按钮都指向一个新 View 。我想在新 View 中显示不同的数据，具体取决于按下哪个按钮进入它。

如果方向正确，那就太棒了。

Answer 1

使用 segues 将你的按钮连接到新的 View Controller 。然后您可以在包含您的按钮的 View Controller 中实现方法 prepareForSegue:sender:。在该方法中，您可以使用自定义新 View 所需的任何数据在新 View 上设置属性。您需要确定单击了哪个按钮。一种方法是将每个按钮的 tag 属性设置为不同的值(在 IB 中或在您的代码中)。

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // sender is the button that was clicked
    // you could set the tag property of the UIButtons when they are created
    // and inspect that property here to determine which was clicked

    // vc will be the view controller you are segueing to
    YourViewController *vc = [segue destinationViewController];

    // set properies of youe next view controller with data needed by new view
    switch (sender.tag) {
        case 0:   // first button
            vc.myProperty = someData;
            break;
        case 1:   // second button
            vc.myProperty = someOtherData;
            break;

        etc...
    }

}