给我一个qt 安卓 蓝牙的一个简单数据收发的工程
时间: 2023-08-06 19:02:56 浏览: 106
qt编写的低功耗蓝牙demo,可实现蓝牙检测连接与数据收发
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以下是一个使用Qt和Android蓝牙模块实现简单数据收发的工程:
main.cpp
```cpp
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QtAndroidExtras>
#include <QBluetoothDeviceDiscoveryAgent>
#include <QBluetoothSocket>
int main(int argc, char *argv[])
{
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
qmlRegisterType<QBluetoothDeviceDiscoveryAgent>("Bluetooth", 1, 0, "BluetoothDeviceDiscoveryAgent");
qmlRegisterType<QBluetoothSocket>("Bluetooth", 1, 0, "BluetoothSocket");
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
if (engine.rootObjects().isEmpty())
return -1;
return app.exec();
}
```
main.qml
```qml
import QtQuick 2.9
import QtQuick.Controls 2.2
import QtQuick.Layouts 1.3
import Bluetooth 1.0
ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Bluetooth Demo")
BluetoothDeviceDiscoveryAgent {
id: discoveryAgent
onDeviceDiscovered: {
console.log("Discovered device: " + device.name + " (" + device.address + ")");
devicesListModel.append(device);
}
onFinished: {
console.log("Discovery finished");
}
onError: {
console.log("Discovery error: " + error);
}
}
BluetoothSocket {
id: socket
onStateChanged: {
console.log("Socket state changed: " + state);
}
onReadyRead: {
var data = socket.readAll();
console.log("Received data: " + data);
}
onError: {
console.log("Socket error: " + error);
}
}
ListView {
id: devicesListView
anchors.fill: parent
model: devicesListModel
delegate: Text {
text: model.name + " (" + model.address + ")"
onClicked: {
socket.connectToService(model.address, "00001101-0000-1000-8000-00805F9B34FB");
}
}
}
ListModel {
id: devicesListModel
}
Button {
text: "Discover devices"
onClicked: {
discoveryAgent.start();
}
}
Button {
text: "Send data"
onClicked: {
socket.write("Hello, world!");
}
}
}
```
这个工程实现了以下功能:
1. 发现附近的蓝牙设备;
2. 点击设备连接到设备的串行端口服务;
3. 从设备读取数据并在控制台上显示;
4. 发送数据到设备。
需要注意的是,由于Android蓝牙模块的限制,这个工程只能在Android设备上运行。如果要在其他平台上运行,需要使用其他的蓝牙模块。
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