小编gee*_*eek的帖子

我有多个QML文件.我只是想把它们联系起来.然后我想从我浏览的每个页面返回到我的主页.我在每个页面都使用加载器这是我的代码.

import QtQuick 1.1
Rectangle{
    id:welcome
    width:480
    height:272
    Loader{
        id:loader
        focus:false
        anchors.fill: parent
    }
    gradient: Gradient {
        GradientStop { position: 0.0; color: "light blue" }
        GradientStop { position: 1.0; color: "blue" }
    }
    Text{
        text:"\n\t\tPRESS ENTER"
        font.bold:true
        font.pointSize: 17
    }
    Button {
    id: wel
        height:30;
        x:parent.width/2-30
        y:parent.height/2-30
        focus:true
        border.color:"black"
        opacity: activeFocus ? 1.0 : 0.5
        Text{   
            text:"WELCOME"
            anchors.horizontalCenter:wel.horizontalCenter;
            anchors.verticalCenter:wel.verticalCenter;
        }   
        Keys.onReturnPressed: {
            wel.focus=false
            loader.focus=true;
            anchors.fill=parent
           loader.source="Home.qml";
            //welcome.visible=false;
        }
    }
}

我的问题是每当我点击按钮加载新文件.但是欢迎页面不会出现.两个文件都将重叠.当我做了visible = false时,完整的UI将会出现.我得到一个白色的屏幕.任何人都可以帮我解决这个问题吗？如何加载其他文件？

我正在尝试创建一个新的线程gpsthread,它应该在后台运行,并存储该值.

class gpsthread: public QThread{
    Q_OBJECT
private:nrega_status_t status2;

public: 
explicit gpsthread(QObject *parent = 0):QThread(parent) {
    // QTimer *t = new QTimer(this);
    // connect(t, SIGNAL(timeout()), this, SLOT(processgps()));
    // t->start(10000);
 }
 void run(){
    qDebug()<<"inside gps thread\n";
    QTimer *t = new QTimer(this);
     connect(t, SIGNAL(timeout()), this, SLOT(processgps()));
     t->start(10000);
    }

public slots:void processgps(){
    int status2;
    status2=gps_management();
}
};

我的主要课程是quickview.

int main(int argc, char *argv[])
{

QString file = "qml/main.qml";
QApplication app(argc, argv);
TranslationTest myObj;
QuickView view;
subthread object;
gpsthread obj;
gprsthread gprs;
view.rootContext()->setContextProperty("rootItem", (QObject *)&myObj); …

我有一个jointjs演示代码,它在纸上有基本形状,我想增加形状的大小,或突出指针上的形状点击或光标在形状上移动,
示例演示代码在这里

var graph = new joint.dia.Graph;

var paper = new joint.dia.Paper({

el: $('#paper'),
width: 650,
height: 400,
gridSize: 20,
model: graph
});

var rb = new joint.shapes.basic.Rect({
position: { x: 50, y: 50 },
size: { width: 100, height: 40 },
attrs: { text: { text: 'basic.Rect' } }
});
graph.addCell(rb);

var tb = new joint.shapes.basic.Text({
position: { x: 170, y: 50 },
size: { width: 100, height: 30 },
attrs: { text: { text: 'basic.Text' } }
}); …