How to refresh a combo-box in qml after sending a signal - qt

Question

Basically, I have a combo-box in qml that I populate using a QStringList. However, I'm not able to refresh the combo-box (reload) to show the list has changed. I looked into doing that using the Loader but I couldn't figure it out. Can someone guide me in how to do it.
network.qml
Popup{
contentItem: Rectangle{
LabelValueList {
id: list1
row1: LabelValue {
id: row1
row2: LabelValue {
id: row2
value: ComboBox {
id: combobox
model: ListModel {
id: comboModel
Component.onCompleted: {
//..
}
}
}
}
}
}
}
}
network.h
class Network : public QObject{
Q_OBJECT
Q_PROPERTY(QStringList listOfNetworks READ m_listOfNetworks NOTIFY updateNetworks)
private:
QStringList m_listOfNetworks;
public:
explicit Network(QObject *parent = 0);
QStringList listOfNetworks() const;
public slots:
void slot_scanNetworks();
signals:
void updateNetworks();
};
network.cpp
Network::Network(QObject *parent) : QObject (parent){
}
void Network::slot_scanNetworks(){
QFile SSIDsFile("/home/root/networking/listOfWifiNetworks.txt");
m_listOfNetworks.clear();
if (!SSIDsFile.open(QIODevice::ReadOnly | QIODevice::Text)){
//
}
else{
QTextStream scanNetworkStream(&SSIDsFile);
while (!scanNetworkStream.atEnd()){
QString line = scanNetworkStream.readLine();
if (line.size() != 0){
QStringList lineSplit = line.split(' ');
m_listOfNetworks.append(lineSplit[1]);
}
}
}
SSIDsFile.close();
emit updateNetworks();
}
How do I reload the combo-box of row2 to refresh the list? It only get's the list at the beginning but i want to update the drop-down (combo-box) when I emit the signal updateNetworks(). I tried using the Loader and setting the source.Component of it to the id of row2 but I kept getting the error "Error: Cannot assign QObject* to QQmlComponent". Any help?

Answer 1

I am not pro but maybe help u this post .
you can use a timer on ur application and set 1s to refresh this and make a variable and when call signal call this variable
example :
// make a variable type of bool by value = false
property bool refreshMyBoxNow : false
//add this timer to ur project
Timer
{
id: timeToRefreshBox
//interval = time to tick . (1000) = 1sec
interval: 1; running: true; repeat: true
onTriggered:
{
//your code here for refresh box
}
}