TextField QML Type

Single-line text input field. 更多...

导入语句：	import QtQuick.Controls 2.2
Since:	Qt 5.7
继承：	TextInput

所有成员列表，包括继承成员

特性

background : Item
focusReason : enumeration
hoverEnabled : bool
hovered : bool
placeholderText : string

信号

void pressAndHold (MouseEvent event )
void pressed (MouseEvent event )
void released (MouseEvent event )

详细描述

TextField is a single line text editor. TextField extends TextInput 采用 placeholder text functionality, and adds decoration.

	A text field in its normal state.
	A text field that has active focus.
	A text field that is disabled.

TextField {
    placeholderText: qsTr("Enter name")
}

另请参阅 TextArea , Customizing TextField ，和输入控件 .

特性文档编制

background : Item

此特性保持背景项。

注意： If the background item has no explicit size specified, it automatically follows the control's size. In most cases, there is no need to specify width or height for a background item.

注意： Most controls use the implicit size of the background item to calculate the implicit size of the control itself. If you replace the background item with a custom one, you should also consider providing a sensible implicit size for it (unless it is an item like 图像 which has its own implicit size).

另请参阅 Customizing TextField .

focusReason : enumeration

此特性保持最后聚焦更改的原因。

注意： This property does not indicate whether the control has active focus , but the reason why the control either gained or lost focus.

常量	描述
`Qt.MouseFocusReason`	发生鼠标动作。
`Qt.TabFocusReason`	按下 Tab 键。
`Qt.BacktabFocusReason`	发生 Backtab。输入可能包括 Shift 或 Control 键；如 Shift+Tab。
`Qt.ActiveWindowFocusReason`	窗口系统使此窗口活动或不活动。
`Qt.PopupFocusReason`	应用程序打开/关闭弹出窗口，抓取/释放键盘焦点。
`Qt.ShortcutFocusReason`	用户键入标签的好友快捷方式
`Qt.MenuBarFocusReason`	菜单栏获得聚焦。
`Qt.OtherFocusReason`	另一原因，通常特定于应用程序。

另请参阅 Item::activeFocus .

hoverEnabled : bool

This property determines whether the text field accepts hover events. The default value is false .

This QML property was introduced in QtQuick.Controls 2.1 (Qt 5.8).

另请参阅 hovered .

[read-only] hovered : bool

This property holds whether the text field is hovered.

This QML property was introduced in QtQuick.Controls 2.1 (Qt 5.8).

另请参阅 hoverEnabled .

placeholderText : string

This property holds the hint that is displayed in the TextField before the user enters text.

信号文档编制

void pressAndHold ( MouseEvent event )

This signal is emitted when there is a long press (the delay depends on the platform plugin). The event parameter provides information about the press, including the x and y position of the press, and which button is pressed.

另请参阅 pressed and released .

void pressed ( MouseEvent event )

This signal is emitted when the text field is pressed by the user. The event parameter provides information about the press, including the x and y position of the press, and which button is pressed.

This QML signal was introduced in QtQuick.Controls 2.1 (Qt 5.8).

另请参阅 released and pressAndHold .

void released ( MouseEvent event )

This signal is emitted when the text field is released by the user. The event parameter provides information about the release, including the x and y position of the press, and which button is pressed.

This QML signal was introduced in QtQuick.Controls 2.1 (Qt 5.8).

另请参阅 pressed and pressAndHold .