Qt Quick 演示 - Tweet 搜索

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import QtQuick 2.0
FocusScope {
    id: wrapper
    property alias text: input.text
    property alias hint: hint.text
    property alias prefix: prefix.text
    signal accepted
    Rectangle {
        anchors.fill: parent
        border.color: "#707070"
        color: "#c1c1c1"
        radius: 4
        Text {
            id: hint
            anchors { fill: parent; leftMargin: 14 }
            verticalAlignment: Text.AlignVCenter
            text: "Enter word"
            font.pixelSize: 18
            color: "#707070"
            opacity: input.displayText.length ? 0 : 1
        }
        Text {
            id: prefix
            anchors { left: parent.left; leftMargin: 14; verticalCenter: parent.verticalCenter }
            verticalAlignment: Text.AlignVCenter
            font.pixelSize: 18
            color: "#707070"
            opacity: !hint.opacity
        }
        TextInput {
            id: input
            focus: true
            anchors { left: prefix.right; right: parent.right; top: parent.top; bottom: parent.bottom }
            verticalAlignment: Text.AlignVCenter
            font.pixelSize: 18
            color: "#707070"
            onAccepted: wrapper.accepted()
        }
        Image {
            source: "resources/icon-search.png"
            anchors.right: parent.right
            anchors.rightMargin: 12
            anchors.verticalCenter: parent.verticalCenter
            MouseArea {
                anchors { fill: parent; margins: -10 }
                onClicked: wrapper.accepted()
            }
        }
    }
}