main.qml Example File

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 import QtQuick 2.0

 Rectangle {
     id: back
     width: 300
     height: 600
     property bool deviceState: device.state
     onDeviceStateChanged: {
         if (!device.state)
             info.visible = false;
     }

     Header {
         id: header
         anchors.top: parent.top
         headerText: "Start Discovery"
     }

     Dialog {
         id: info
         anchors.centerIn: parent
         visible: false
     }

     ListView {
         id: theListView
         width: parent.width
         clip: true

         anchors.top: header.bottom
         anchors.bottom: connectToggle.top
         model: device.devicesList

         delegate: Rectangle {
             id: box
             height:100
             width: parent.width
             color: "lightsteelblue"
             border.width: 2
             border.color: "black"
             radius: 5

             Component.onCompleted: {
                 info.visible = false;
                 header.headerText = "Select a device";
             }

             MouseArea {
                 anchors.fill: parent
                 onClicked: {
                     device.scanServices(modelData.deviceAddress);
                     pageLoader.source = "Services.qml"
                 }
             }

             Label {
                 id: deviceName
                 textContent: modelData.deviceName
                 anchors.top: parent.top
                 anchors.topMargin: 5
             }

             Label {
                 id: deviceAddress
                 textContent: modelData.deviceAddress
                 font.pointSize: deviceName.font.pointSize*0.7
                 anchors.bottom: box.bottom
                 anchors.bottomMargin: 5
             }
         }
     }

     Menu {
         id: connectToggle

         menuWidth: parent.width
         anchors.bottom: menu.top
         menuText: { if (device.devicesList.length)
                         visible = true
                     else
                         visible = false
                     if (device.useRandomAddress)
                         "Address type: Random"
                     else
                         "Address type: Public"
         }

         onButtonClick: device.useRandomAddress = !device.useRandomAddress;
     }

     Menu {
         id: menu
         anchors.bottom: parent.bottom
         menuWidth: parent.width
         menuHeight: (parent.height/6)
         menuText: device.update
         onButtonClick: {
             device.startDeviceDiscovery();
             // if startDeviceDiscovery() failed device.state is not set
             if (device.state) {
                 info.dialogText = "Searching...";
                 info.visible = true;
             }
         }
     }

     Loader {
         id: pageLoader
         anchors.fill: parent
     }
 }