In my mobile app, I want to load a 'default' page from my main.cpp:

Qt Code: 
  1. X.engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
To copy to clipboard, switch view to plain text mode 

I use my main.qml as a 'container' for all the pages of my app. Right now, I have them all defined in main.qml:

Qt Code: 
  1. Rectangle {
  2.         id: winRect
  3.         visible: true
  4.         anchors.right: parent.right
  5.         anchors.left: parent.left
  6.         anchors.top: header.bottom
  7.         anchors.bottom: footer.top
  8.         color: "black"
  9.  
  10.         MainWin {
  11.             id: mainWin
  12.             anchors.fill: parent
  13.             visible: false;
  14.             z: 0;
  15.         }
  16.  
  17.         InfoWin {
  18.             id: infoWin
  19.             anchors.fill: parent
  20.             visible: false;
  21.             z: 0;
  22.         }
  23.  
  24.         SettingsWin {
  25.             id: settingsWin
  26.             anchors.fill: parent
  27.             visible: false;
  28.             z: 0;
  29.         }
  30.  
  31.         FileInfoWin {
  32.             id: fileInfoWin
  33.             anchors.fill: parent
  34.             visible: false;
  35.             z: 0;
  36.         }
  37.  
  38.         BusyWin {
  39.             id: busyWin
  40.             anchors.fill: parent
  41.             visible: false;
  42.             z: 0;
  43.         }
  44.  
  45.         ErrorWin {
  46.             id: errorWin
  47.             anchors.fill: parent
  48.             visible: false;
  49.             z: 0;
  50.         }
  51.     }
To copy to clipboard, switch view to plain text mode 

Then, later, via JavaScript, I 'show' the desired page by setting all 'visible' to false, then to true on the correct page. This all works fine...but causes a really slow startup time on iOS. I believe it is due to ALL my sub-pages being loaded at boot-time.

My question is... How can I use a Loader to load each page on demand, but still be able to access the attributes of each page when it is not loaded? For instance, I have Speed and Heading that get updated on two different pages every second or so. If a page is not "loaded" by the Loader, how can I update it's attributes?

IF that is not possible, then how can I detect when a page has fully loaded? As I understand it, the OnCompleted signal does not necessarily fire AFTER a component has been fully loaded.

--Sam