boolean is501 = false;
boolean is520 = false;
boolean is601 = false;
//You need to define is501 this outside of for loop
if(plotNo.equals("501") || plotNo.equals("520") || plotNo.equals("601"){
if (!is501 && plotNo.equals("501")) {
//Your logic
is501 = true;
}
else if (!is520 && plotNo.equals("520")) {
//Your logic
is520 = true;
}
else if (!is520 && plotNo.equals("601")) {
//Your logic
is601 = true;
}
}
即使我已指定第1行和第11列,请查看黄色矩形的显示位置 :
必须红色和黄色矩形之间的空白区域 如何在QML的GridLayout中的特定行和列中放置矩形?
将import QtQuick 2.4
import QtQuick.Window 2.2
import QtQuick.Layouts 1.1 // GridLayout
Window
{
visible: true
height: 700; width: 1000
GridLayout
{
id: gridLayout
rows: 15;
columns: 15;
rowSpacing: 0; columnSpacing: 0
property int secondScreenOptionsOpacity: 0
property int hmmiButtonRow: 0
property int hmmiButtonCol: 0
Rectangle
{
id: hmmi;
Layout.row: gridLayout.hmmiButtonRow; Layout.column: gridLayout.hmmiButtonCol;
height: 70; width: 150; color: "pink";
Layout.alignment: Qt.AlignTop
Text { text: "HMMI"; anchors.centerIn: parent }
MouseArea {anchors.fill: parent; onClicked: mainScreenFunctionality.hmmiControlButton()}
}
property int optionsButtonRow: 1
property int optionsButtonCol: 0
Rectangle
{
id: optionsButton;
Layout.row: gridLayout.optionsButtonRow; Layout.column: gridLayout.optionsButtonCol;
height: 70; width: 150; color: "red"
Layout.alignment: Qt.AlignBottom
Text { text: "Options..."; anchors.centerIn: parent }
MouseArea { anchors.fill: parent; onClicked: mainScreenFunctionality.optionsButton() }
}
property int eulerWidgetRow: 1
property int eulerWidgetCol: 11
Rectangle
{
id: eulerWidgetControl;
Layout.row :gridLayout.eulerWidgetRow; Layout.column: gridLayout.eulerWidgetCol;
height: 140; width: 140; color: "yellow"
Layout.columnSpan: 2; Layout.rowSpan: 2
Layout.alignment: Qt.AlignRight
Text { text: "euler"; anchors.centerIn: parent }
}
}
}
添加到GridLayout会执行以下操作:
答案 0 :(得分:5)
必须红色和黄色矩形之间的空白区域。
仅当红色和黄色矩形之间的列宽度大于零时。在您的代码中,未指定1~10列,因此它们的宽度均为零。这就是为什么空格(列)不会出现的原因。要解决此问题,您可以向GridLayout
添加一些不可见的列,如下所示:
GridLayout {
//your code ...
Repeater {
model: 9
delegate: Item {
width: 10; height: 10
Layout.row: 1
Layout.column: index + 1
}
}
将anchors.fill: parent
添加到GridLayout
会在矩形之间显示空白区域,这是GridLayout
中最强大的功能之一:动态排列网格中的项目。如果我们将不可见列更改为黑色矩形:
GridLayout {
//your code...
Repeater {
model: 9
delegate: Rectangle {
width: 10; height: 10
Layout.row: 1
Layout.column: index + 1
color: "black"
}
}