UITextField属性：键盘

Question

在Xcode的故事板中，我将键盘类型设置为电子邮件地址。我注意到还有一个Content-Type（也可以有一个电子邮件地址内容类型）下拉菜单。它的目的是什么？

screenshot

由于

Answer 1

键盘类型只设置要显示的键盘。

内容类型更为通用。

UITextField实现UITextInputTraits协议。在此，内容类型用于指示文本字段的语义含义。例如，它可用于指示可能发生的各种自动更正。

有关此协议的详细信息，请参阅https://developer.apple.com/documentation/uikit/uitextinputtraits。

Answer 2

根据文件：

  

textContentType属性用于为键盘提供有关文本文档语义意图的额外信息。

另一方面，

他们 Dim strPosUrl As String, strUsername As String, strPassword As String, _ strStoreDomId As String, strStore As String, _ strBtnStoreUpdateDomId As String, strOrder As String, _ strLoadingSpinner As String, strCssAttributeSpinner As String, _ strCssTextSpinner As String Dim objBrowser As Object 'SHDocVw.InternetExplorer Dim blnSsoLogin As Boolean Dim intStoreColNum As Integer, intOrderColNum As Integer, _ intCreditCardColNum As Integer 'Dim doc As MSHTML.HTMLDocument 'these are test vars----------------- strStore = "Data" strOrder = "Data" '---------------------------------- strLoadingSpinner = "spinnerUnique" strCssAttributeSpinner = "style" strCssTextSpinner = "display: none;" strUsername = "example" strPassword = "EXample" strStoreDomId = "orderLocInputId" strBtnStoreUpdateDomId = "orderLocValueUpdate" strPosUrl = "https://example.jsp" Set objBrowser = New InternetExplorerMedium objBrowser.Visible = True browserNavigate strPosUrl, objBrowser browserWait objBrowser blnSsoLogin = ssoLoginCheck(objBrowser) Select Case blnSsoLogin Case Is = True ssoLoginMod strUsername, strPassword, objBrowser browserWait objBrowser Case Is = False End Select fillTextboxWithId objBrowser, strStoreDomId, strStore clickButtonWithId objBrowser, strBtnStoreUpdateDomId browserWait objBrowser foundOrNot strLoadingSpinner, strCssAttributeSpinner, _ strCssTextSpinner, objBrowser '----------------------------------------------------- Dim IFrameText As Object Set IFrameText = objBrowser.document.getElementById("frmHome") IFrameText.HTML.getElementById("ordernum").Value = "1223" Dim x As String objBrowser.navigate "https://xxxxxxx.xxxxxxx.com" & x x = objBrowser.LocationURL x = "just messing with stuff" Set IFrameText = objBrowser.document.getElementById("frmHome") Dim elem As Object For Each elem In IFrameText If elem.innerText Like "*true*" Then MsgBox (elem) End If Next 属性决定了将要呈现的键盘布局。