swift – 如何在Google Place AutocompleteViewController中的GMSAutocompleteViewController中设置文本

在我的应用程序中打开时,我需要帮助在GMSAutocompleteViewController的searchBar中设置文本.我在 Google Place AutocompleteViewController使用GMSAutocompleteViewController.

我通过结合@Youngjin和@ Exception的Swift 4和Google Places 2.6.0的答案得到了一个有效的解决方案

要访问GMSAutocompleteViewController搜索栏：

let views = gmsAutoCompleteViewController.view.subviews
let subviewsOfSubview = views.first!.subviews
let subOfNavTransitionView = subviewsOfSubview[1].subviews
let subOfContentView = subOfNavTransitionView[2].subviews     
let searchBar = subOfContentView[0] as! UISearchBar

然后设置文本并自动搜索：

searchBar.text = "Your address"
searchBar.delegate?.searchBar?(searchBar,textDidChange: "Your address") // This performs the automatic searching.

我发现在尝试从内部设置文本时收到了EXC_BAD_ACCESS错误
didRequestAutocompletePredictions(_ viewController：GMSAutocompleteViewController).

所以我把这段代码放在我提供autoCompleteController的完成块中,它可以正常工作.

将它们组合在一起：

let gmsAutoCompleteViewController = GMSAutocompleteViewController()
gmsAutoCompleteViewController.delegate = self

present(gmsAutoCompleteViewController,animated: true) {
    let views = gmsAutoCompleteViewController.view.subviews
    let subviewsOfSubview = views.first!.subviews
    let subOfNavTransitionView = subviewsOfSubview[1].subviews
    let subOfContentView = subOfNavTransitionView[2].subviews
    let searchBar = subOfContentView[0] as! UISearchBar
    searchBar.text = "Your address"
    searchBar.delegate?.searchBar?(searchBar,textDidChange: "Your address")
}

编辑：我发现这个解决方案似乎只适用于iOS 11.让searchBar = subOfContentView [0]为！的UISearchBar将在iOS 10上失败,可能还会降低版本.

原文地址：https://www.jb51.cc/swift/319290.html