Bluetooth Low Energy Scanner Example▲
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/***************************************************************************
**
** Copyright (C) 2013 BlackBerry Limited. All rights reserved.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
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** accordance with the commercial license agreement provided with the
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** BSD License Usage
** Alternatively, 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.
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** the documentation and/or other materials provided with the
** distribution.
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**
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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
}
}