added some basic controls

OmobiDisplayApp/OmobiDisplayApp.pro

@@ -1,5 +1,5 @@
 QT += quick bluetooth
-CONFIG += c++11 console
+CONFIG += c++11
 
 TARGET = OmobiDisplayApp
 

OmobiDisplayApp/main.cpp

@@ -1,5 +1,6 @@
 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
+#include <qbluetoothleuart.h>
 
 #include "omobidisplaybackend.h"
 
@@ -9,10 +10,9 @@ int main(int argc, char *argv[])
 
     QGuiApplication app(argc, argv);
 
-    OmobiDisplayBackend b;
-    b.startScanning();
+    qmlRegisterType<OmobiDisplayBackend>("de.itsblue.omobidisplayapp", 1, 0, "OmobiDisplayBackend");
+    QBluetoothLeUart::init();
 
-    /*
     QQmlApplicationEngine engine;
     const QUrl url(QStringLiteral("qrc:/main.qml"));
     QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
@@ -21,6 +21,6 @@ int main(int argc, char *argv[])
             QCoreApplication::exit(-1);
     }, Qt::QueuedConnection);
     engine.load(url);
-*/
+
     return app.exec();
 }

OmobiDisplayApp/main.qml

@@ -1,10 +1,54 @@
 import QtQuick 2.12
 import QtQuick.Controls 2.0
 import QtQuick.Window 2.12
+import de.itsblue.omobidisplayapp 1.0
+import de.itsblue.bluetoothleuart 1.0
 
 ApplicationWindow {
     width: 640
     height: 480
     visible: true
     title: qsTr("Hello World")
+
+    Page {
+        id: app
+
+        anchors.fill: parent
+
+        OmobiDisplayBackend {
+            id: backend
+        }
+
+        Button {
+            id: connectButton
+            text: "Scan for devices"
+
+            visible: backend.bleController.state === QBluetoothLeUART.Idle
+
+            onClicked: {
+                backend.bleController.startScanningForDevices()
+            }
+        }
+
+        ListView {
+            id: list
+            anchors.top: connectButton.bottom
+            anchors.margins: 10
+
+            height: parent.height
+
+            model: backend.bleController.avaliableDevices.length
+
+            delegate: Button {
+                property var thisDevice: backend.bleController.avaliableDevices[index]
+
+                text: thisDevice["name"]
+
+                onClicked: {
+                    backend.bleController.connectToDevice(thisDevice["id"])
+                }
+
+            }
+        }
+    }
 }

OmobiDisplayApp/omobidisplaybackend.cpp

@@ -8,7 +8,7 @@ OmobiDisplayBackend::OmobiDisplayBackend(QObject *parent) : QObject(parent)
     connect(this->ble, &QBluetoothLeUart::stateChanged, this, &OmobiDisplayBackend::handleBluetoothStateChange);
     connect(this->ble, &QBluetoothLeUart::foundNewDevice, this, &OmobiDisplayBackend::handleFoundNewDevice);
     connect(this->ble, &QBluetoothLeUart::dataReceived, this, &OmobiDisplayBackend::DataHandler);
-
+    connect(this->ble, &QBluetoothLeUart::connectedToDevice, this, &OmobiDisplayBackend::handleBluetoothDeviceConected);
 }
 
 
@@ -21,36 +21,6 @@ void OmobiDisplayBackend::handleBluetoothStateChange(QBluetoothLeUart::Bluetooth
     qDebug() << state;
 
     switch(state){
-
-        case QBluetoothLeUart::Scanning:
-        {
-            qDebug() << "Now scanning";
-            break;
-        }
-
-
-        case QBluetoothLeUart::ScanFinished:
-        {
-            qDebug() << "Scan finished";
-
-            break;
-        }
-
-        case QBluetoothLeUart::Connecting:
-        {
-            qDebug() << "Now connecting";
-            break;
-        }
-        case QBluetoothLeUart::Connected:
-        {
-            qDebug() << "Connected.";
-            break;
-        }
-        case QBluetoothLeUart::ServiceFound:
-        {
-            qDebug() << "Service found!";
-            break;
-        }
         case QBluetoothLeUart::AcquireData:
         {
             qDebug() << "Now acquiring data!";
@@ -68,13 +38,12 @@ void OmobiDisplayBackend::handleBluetoothStateChange(QBluetoothLeUart::Bluetooth
     }
 }
 
+void OmobiDisplayBackend::handleBluetoothDeviceConected() {
+    this->ble->sendData("Hallihallo ich bin Julia Mueller");
+}
+
 void OmobiDisplayBackend::handleFoundNewDevice(QBluetoothLeUartDevice* device) {
     qDebug() << "Found a device: name: " << device->getName() << " address: " << device->getAddress();
-
-    if(device->getName() == "ESP32 Chat Test") {
-        this->ble->stopScanningForDevices();
-        this->ble->connectToDevice(device);
-    }
 }
 
 void OmobiDisplayBackend::DataHandler(const QString &s){
@@ -83,3 +52,6 @@ void OmobiDisplayBackend::DataHandler(const QString &s){
 
 }
 
+QBluetoothLeUart* OmobiDisplayBackend::getBleController() {
+    return this->ble;
+}

OmobiDisplayApp/omobidisplaybackend.h

@@ -7,20 +7,26 @@
 class OmobiDisplayBackend : public QObject
 {
     Q_OBJECT
+    Q_PROPERTY(QBluetoothLeUart* bleController READ getBleController NOTIFY bleControllerChanged)
 public:
     explicit OmobiDisplayBackend(QObject *parent = nullptr);
 
-    void startScanning();
+    Q_INVOKABLE void startScanning();
 
 private:
     QBluetoothLeUart *ble;
 
+public slots:
+    QBluetoothLeUart* getBleController();
+
 private slots:
     void handleBluetoothStateChange(QBluetoothLeUart::BluetoothLeUartState state);
     void handleFoundNewDevice(QBluetoothLeUartDevice* device);
     void DataHandler(const QString &s);
+    void handleBluetoothDeviceConected();
 
 signals:
+    void bleControllerChanged();
 
 };