Qt 5.7 | Qt Bluetooth | Bluetooth Low Energy Scanner Example | Services.qml Example File

Qt 5.7.1 Reference Documentation

# Services.qml Example File

lowenergyscanner/assets/Services.qml

      /***************************************************************************
      **
      ** Copyright (C) 2013 BlackBerry Limited. All rights reserved.
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the QtBluetooth module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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      ****************************************************************************/

      import QtQuick 2.0

      Rectangle {
          width: 300
          height: 600

          Component.onCompleted: {
              // Loading this page may take longer than QLEController
              // stopping with an error, go back and readjust this view
              // based on controller errors
              if (device.controllerError) {
                  info.visible = false;
                  menu.menuText = device.update
              }
          }

          Header {
              id: header
              anchors.top: parent.top
              headerText: "Services list"
          }

          Dialog {
              id: info
              anchors.centerIn: parent
              visible: true
              dialogText: "Scanning for services...";
          }

          Connections {
              target: device
              onServicesUpdated: {
                  if (servicesview.count === 0)
                      info.dialogText = "No services found"
                  else
                      info.visible = false;
              }

              onDisconnected: {
                  pageLoader.source = "main.qml"
              }
          }

          ListView {
              id: servicesview
              width: parent.width
              anchors.top: header.bottom
              anchors.bottom: menu.top
              model: device.servicesList
              clip: true

              delegate: Rectangle {
                  id: servicebox
                  height:100
                  color: "lightsteelblue"
                  border.width: 2
                  border.color: "black"
                  radius: 5
                  width: parent.width
                  Component.onCompleted: {
                      info.visible = false
                  }

                  MouseArea {
                      anchors.fill: parent
                      onClicked: {
                          device.connectToService(modelData.serviceUuid);
                          pageLoader.source = "Characteristics.qml";
                      }
                  }

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

                  Label {
                      textContent: modelData.serviceType
                      font.pointSize: serviceName.font.pointSize * 0.5
                      anchors.top: serviceName.bottom
                  }

                  Label {
                      id: serviceUuid
                      font.pointSize: serviceName.font.pointSize * 0.5
                      textContent: modelData.serviceUuid
                      anchors.bottom: servicebox.bottom
                      anchors.bottomMargin: 5
                  }
              }
          }

          Menu {
              id: menu
              anchors.bottom: parent.bottom
              menuWidth: parent.width
              menuText: device.update
              menuHeight: (parent.height/6)
              onButtonClick: {
                  device.disconnectFromDevice()
                  pageLoader.source = "main.qml"
                  device.update = "Search"
              }
          }
      }