initial commit

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches/build_file_checksums.ser
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.anoopm.mqtt"
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.1.0'
+    implementation 'org.eclipse.paho:org.eclipse.paho.android.service:1.1.1'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/example/anoopm/mqtt/ExampleInstrumentedTest.kt

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+package com.example.anoopm.mqtt
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("com.example.anoopm.mqtt", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.anoopm.mqtt">
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:roundIcon="@mipmap/ic_launcher_round"
+            android:supportsRtl="true"
+            android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <service android:name="org.eclipse.paho.android.service.MqttService" />
+    </application>
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
+</manifest>

app/src/main/java/com/example/anoopm/mqtt/MainActivity.kt

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+package com.example.anoopm.mqtt
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import android.view.View
+import com.example.anoopm.mqtt.manager.MQTTConnectionParams
+import com.example.anoopm.mqtt.manager.MQTTmanager
+import com.example.anoopm.mqtt.protocols.UIUpdaterInterface
+import kotlinx.android.synthetic.main.activity_main.*
+
+class MainActivity : AppCompatActivity(), UIUpdaterInterface {
+
+    var mqttManager:MQTTmanager? = null
+
+    // Interface methods
+    override fun resetUIWithConnection(status: Boolean) {
+
+        ipAddressField.isEnabled  = !status
+        topicField.isEnabled      = !status
+        messageField.isEnabled    = status
+        connectBtn.isEnabled      = !status
+        sendBtn.isEnabled         = status
+
+        // Update the status label.
+        if (status){
+            updateStatusViewWith("Connected")
+        }else{
+            updateStatusViewWith("Disconnected")
+        }
+    }
+
+    override fun updateStatusViewWith(status: String) {
+        statusLabl.text = status
+    }
+
+    override fun update(message: String) {
+
+        var text = messageHistoryView.text.toString()
+        var newText = """
+            $text
+            $message
+            """
+        //var newText = text.toString() + "\n" + message +  "\n"
+        messageHistoryView.setText(newText)
+        messageHistoryView.setSelection(messageHistoryView.text.length)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        // Enable send button and message textfield only after connection
+        resetUIWithConnection(false)
+    }
+
+    fun connect(view: View){
+
+        if (!(ipAddressField.text.isNullOrEmpty() && topicField.text.isNullOrEmpty())) {
+            var host = "tcp://" + ipAddressField.text.toString() + ":1883"
+            var topic = topicField.text.toString()
+            var connectionParams = MQTTConnectionParams("MQTTSample",host,topic,"","")
+            mqttManager = MQTTmanager(connectionParams,applicationContext,this)
+            mqttManager?.connect()
+        }else{
+            updateStatusViewWith("Please enter all valid fields")
+        }
+
+    }
+
+    fun sendMessage(view: View){
+
+        mqttManager?.publish(messageField.text.toString())
+
+        messageField.setText("")
+    }
+}