UISearchBar x按钮已按下 [英] UISearchBar x button pressed

问题描述

按下 x按钮时如何处理事件？

How handle the event when press the 'x' button?

我尝试此方法但不起作用。

I try this method but not works.

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{

}

推荐答案

我认为没有简单的方法可以插入X按钮。

I don't think there's an easy way to hook into the X button.

但是，您可以了解其直接后果：已清除文本。

However, you can hook into its direct consequence: cleared text.

尝试以下操作：

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
    if searchText == "" {
        print("UISearchBar.text cleared!")
    }
}

副作用是当您手动清除文本时也会调用此函数。

The side effect is this also gets called when you manually clear your text.

这篇关于UISearchBar x按钮已按下的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！