swift - 如何在pickerview上方添加搜索栏作为工具栏

Question

大家好，我想以编程方式在pickerView上方实现搜索栏，如下图示例设计照片所示

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标签： swift

Answer 1

您可以使用inputAccessoryView和toolbar。

let picker = UIPickerView()
picker.delegate = self
self.txtField.inputView = picker

let toolbar = UIToolbar()
toolbar.frame = CGRect(x: 0, y: 0, width: 0, height: 35)

self.txtField.inputAccessoryView = toolbar

let search = UISearchBar()
let addButton = UIBarButtonItem(customView: search)
toolbar.setItems([addButton], animated: true)