UISearchBarSearchField 背景视图颜色

Posted 2023-02-24

【中文标题】UISearchBarSearchField 背景视图颜色

【英文标题】：UISearchBarSearchField BackgroundView color

【发布时间】：2019-09-27 04:01:42

【问题描述】：

我正在尝试更改搜索栏文本字段的背景颜色，我已经搜索并尝试了很多解决方案，但这些都不起作用。

所以，请任何人都可以告诉我确切的解决方案。我们如何更改搜索栏文本字段的背景颜色？

/// used to prepare searchController inside navigation.
private func prepareNavigationSearchControllerSetup() 
    self.title = AppConstant.kContacts
    let search = UISearchController(searchResultsController: nil)
    search.searchResultsUpdater = self
    search.searchBar.cornerRadius = 10.0
    search.searchBar.textField?.backgroundColor = .red
    search.searchBar.textField?.tintColor = .yellow
    self.navigationItem.searchController = search
    self.navigationItem.hidesSearchBarWhenScrolling = false


extension UISearchBar 

    var textField: UITextField? 
        let subViews = subviews.flatMap  $0.subviews 
        return (subViews.filter  $0 is UITextField ).first as? UITextField
    

【参考方案1】：

经过大量搜索后，我找到了适合我的正确答案。

if #available(ios 11.0, *) 
        if let textfield = search.searchBar.value(forKey: "searchField") as? UITextField 
            textfield.textColor = UIColor.blue

            if let backgroundview = textfield.subviews.first 
                backgroundview.backgroundColor = UIColor.white
                backgroundview.layer.cornerRadius = 10;
                backgroundview.clipsToBounds = true;
            
        

  

【参考方案2】：

你可以试试这个

UITextField.appearance(whenContainedInInstancesOf: [type(of: searchController.searchBar)]).backgroundColor = .yellow
UITextField.appearance(whenContainedInInstancesOf: [type(of: searchController.searchBar)]).tintColor = .blue

输出

编辑：完整代码

    var searchController = UISearchController()
    let resultsTableController = Storyboard.Home.instantiateViewController(withIdentifier: "GlobalTableVC") as! GlobalTableVC
    resultsTableController.tableView.delegate = self
    resultsTableController.tableView.dataSource = self

    resultsTableController.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "SearchCell")

    searchController = UISearchController(searchResultsController: resultsTableController)
    searchController.searchBar.placeholder = "Search"
    searchController.dimsBackgroundDuringPresentation = true
    searchController.searchBar.sizeToFit()
    searchController.hidesNavigationBarDuringPresentation = false
    searchController.searchBar.keyboardType = UIKeyboardType.alphabet
    searchController.searchBar.tintColor = UIColor.white
    searchController.searchBar.barTintColor = UIColor(hexString: "EB033B")

    UITextField.appearance(whenContainedInInstancesOf: [type(of: searchController.searchBar)]).backgroundColor = .yellow
    UITextField.appearance(whenContainedInInstancesOf: [type(of: searchController.searchBar)]).tintColor = .blue


    searchController.searchBar.delegate = self
    searchController.delegate = self
    searchController.searchResultsUpdater = self

    present(searchController, animated: true, completion: nil)

【讨论】：

你能告诉我上面的代码应该放在哪里吗？

@AhemadabbasVagh 在prepareNavigationSearchControllerSetup。我认为您的 search.searchBar.textField?.tintColor 和 search.searchBar.textField?.backgroundColor 不起作用，因此您可以在此处替换行

@AhemadabbasVagh 检查完整代码。导航栏中有按钮，在 btnaction 上我调用了此代码。您的要求可能会有所不同，您需要进行相应的编码。

【参考方案3】：

自 iOS 13 起：

        if #available(iOS 13.0, *) 
            searchController.searchBar.searchTextField.backgroundColor = .red
            searchController.searchBar.searchTextField.tintColor = .yellow