响应按键
import QtQuick 2.2
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
Rectangle {
width: 300;
height: 200;
color: "blue";
focus: true;
Keys.enabled: true;
Keys.onEscapePressed: Qt.quit();
Keys.onBackPressed: Qt.quit();
Keys.onPressed: {
switch(event.key){
case Qt.Key_0:
case Qt.Key_1:
case Qt.Key_2:
case Qt.Key_3:
case Qt.Key_4:
case Qt.Key_5:
case Qt.Key_6:
case Qt.Key_7:
case Qt.Key_8:
case Qt.Key_9:
event.accepted=true;
keyView.text = event.key - Qt.Key_0;
break;
}
}
Text {
id: keyView;
font.bold: true;
font.pixelSize: 24;
text: qsTr("text");
anchors.centerIn: parent;
}
}
}
检测到Escape和Back键时退出应用,检测到数字时,就通过Text来显示对应的数字。
运行结果如下: