内容

• 特性
• 信号
• 详细描述

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
• bottomInset : real
• focusReason : enumeration
• hoverEnabled : bool
• hovered : bool
• implicitBackgroundHeight : real
• implicitBackgroundWidth : real
• leftInset : real
• placeholderText : string
• placeholderTextColor : color
• rightInset : real
• topInset : real

信号

• pressAndHold (MouseEvent event )
• pressed (MouseEvent event )
• 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 .

[since QtQuick.Controls 2.5 (Qt 5.12)] bottomInset : real

This property holds the bottom inset for the background.

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 Control Layout and topInset .

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 .

[since QtQuick.Controls 2.1 (Qt 5.8)] hoverEnabled : bool

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

该特性在 QtQuick.Controls 2.1 (Qt 5.8) 引入。

另请参阅 hovered .

[read-only, since QtQuick.Controls 2.1 (Qt 5.8)] hovered : bool

This property holds whether the text field is hovered.

该特性在 QtQuick.Controls 2.1 (Qt 5.8) 引入。

另请参阅 hoverEnabled .

[read-only, since QtQuick.Controls 2.5 (Qt 5.12)] implicitBackgroundHeight : real

This property holds the implicit background height.

值等于 background ? background.implicitHeight : 0 .

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 implicitBackgroundWidth .

[read-only, since QtQuick.Controls 2.5 (Qt 5.12)] implicitBackgroundWidth : real

This property holds the implicit background width.

值等于 background ? background.implicitWidth : 0 .

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 implicitBackgroundHeight .

[since QtQuick.Controls 2.5 (Qt 5.12)] leftInset : real

This property holds the left inset for the background.

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 Control Layout and rightInset .

placeholderText : string

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

[since QtQuick.Controls 2.5 (Qt 5.12)] placeholderTextColor : color

This property holds the color of placeholderText .

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 placeholderText .

[since QtQuick.Controls 2.5 (Qt 5.12)] rightInset : real

This property holds the right inset for the background.

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 Control Layout and leftInset .

[since QtQuick.Controls 2.5 (Qt 5.12)] topInset : real

This property holds the top inset for the background.

该特性在 QtQuick.Controls 2.5 (Qt 5.12) 引入。

另请参阅 Control Layout and bottomInset .

信号文档编制

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 coordinates of the press, and which button is pressed.

注意： 相应处理程序是 onPressAndHold .

另请参阅 pressed and released .

[since QtQuick.Controls 2.1 (Qt 5.8)] 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 coordinates of the press, and which button is pressed.

注意： 相应处理程序是 onPressed .

该信号在 QtQuick.Controls 2.1 (Qt 5.8) 引入。

另请参阅 released and pressAndHold .

[since QtQuick.Controls 2.1 (Qt 5.8)] 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 coordinates of the press, and which button is pressed.

注意： 相应处理程序是 onReleased .

该信号在 QtQuick.Controls 2.1 (Qt 5.8) 引入。

另请参阅 pressed and pressAndHold .