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pradeepan-prabhapradeepan-prabha
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Fest: Wifi Manager Wrapper In Kotlin, Implemented with listener
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‎.gitignore

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#built application files
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*.apk
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*.ap_
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# files for the dex VM
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*.dex
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# Java class files
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*.class
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# generated files
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bin/
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gen/
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# Local configuration file (sdk path, etc)
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local.properties
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# Windows thumbnail db
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Thumbs.db
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# OSX files
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.DS_Store
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# Android Studio
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*.iml
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.idea
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#.idea/workspace.xml - remove # and delete .idea if it better suit your needs.
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.gradle
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build/
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.navigation
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captures/
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output.json
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#NDK
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obj/
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.externalNativeBuild
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/local.properties
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/.idea/caches
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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/.idea/navEditor.xml
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/.idea/assetWizardSettings.xml
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/build
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/captures
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.cxx
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‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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android {
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compileSdkVersion 29
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buildToolsVersion "29.0.3"
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defaultConfig {
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applicationId "com.imake.wifimanagerwrapper"
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minSdkVersion 21
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targetSdkVersion 29
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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implementation 'androidx.appcompat:appcompat:1.1.0'
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implementation 'androidx.core:core-ktx:1.2.0'
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implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'androidx.test.ext:junit:1.1.1'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
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}

‎app/proguard-rules.pro

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

‎app/src/androidTest/java/com/imake/wifimanagerwrapper/ExampleInstrumentedTest.kt

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package com.imake.wifimanagerwrapper
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.imake.wifimanagerwrapper", appContext.packageName)
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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package="com.imake.wifimanagerwrapper">
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<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
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<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
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<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:usesCleartextTraffic="true"
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android:theme="@style/AppTheme"
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tools:targetApi="m">
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/imake/wifimanagerwrapper/MainActivity.kt

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package com.imake.wifimanagerwrapper
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import android.net.wifi.ScanResult
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import android.view.View
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import com.imake.waterlevel.util.wifiwrapper.WifiCallbackResult
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import com.imake.wifimanagerwrapper.util.wifiwrapper.WifiManagerWrapper
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import kotlinx.android.synthetic.main.activity_main.*
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class MainActivity : AppCompatActivity(), WifiCallbackResult {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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scanBtn.setOnClickListener {
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WifiManagerWrapper().wifiManagerInti(it.context,this)
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}
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}
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override fun wifiFailureResult(results: MutableList<ScanResult>) {
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println("wifiFailureResult*****************rootTemp = ${results}")
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}
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override fun wifiSuccessResult(results: List<ScanResult>) {
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println("wifiSuccessResult******************rootTemp = ${results}")
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}
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}

‎app/src/main/java/com/imake/wifimanagerwrapper/util/wifiwrapper/WifiCallbackResult.kt

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package com.imake.waterlevel.util.wifiwrapper
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import android.net.wifi.ScanResult
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interface WifiCallbackResult {
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fun wifiFailureResult(results: MutableList<ScanResult>);
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fun wifiSuccessResult(results: List<ScanResult>)
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}

‎app/src/main/java/com/imake/wifimanagerwrapper/util/wifiwrapper/WifiManagerWrapper.kt

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package com.imake.wifimanagerwrapper.util.wifiwrapper
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import android.content.BroadcastReceiver
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import android.content.Context
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import android.content.Intent
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import android.content.IntentFilter
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import android.net.wifi.WifiManager
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import android.os.Build
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import androidx.annotation.RequiresApi
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import com.imake.waterlevel.util.wifiwrapper.WifiCallbackResult
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class WifiManagerWrapper() {
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private lateinit var listenerCallback: WifiCallbackResult
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private lateinit var context: Context
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private lateinit var wifiScanReceiver: BroadcastReceiver
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private lateinit var wifiManager: WifiManager
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fun wifiManagerInti(contextInti: Context, listener: WifiCallbackResult) {
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this.listenerCallback = listener
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this.context = contextInti.applicationContext
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wifiManager =
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context.applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
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println("wifiManager.connectionInfo = ${wifiManager.connectionInfo}")
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if (wifiManager.isWifiEnabled)
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autoStartStopWifiScanner()
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}
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private fun autoStartStopWifiScanner() {
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wifiBroadcastReceiverInstance()
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registerWifiBroadcastReceiver()
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val success = wifiManager.startScan()
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if (!success) {
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// scan failure handling
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unregisterWifiBroadcastReceiver()
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// println("***************scanFailure******************")
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scanFailure()
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}
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}
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private fun startWifiScanner() {
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val success = wifiManager.startScan()
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if (!success) {
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// scan failure handling
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scanFailure()
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}
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}
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private fun unregisterWifiBroadcastReceiver() {
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context.unregisterReceiver(wifiScanReceiver)
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}
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private fun registerWifiBroadcastReceiver() {
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val intentFilter = IntentFilter()
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intentFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)
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context.registerReceiver(wifiScanReceiver, intentFilter)
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}
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private fun wifiBroadcastReceiverInstance() {
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wifiScanReceiver = object : BroadcastReceiver() {
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@RequiresApi(Build.VERSION_CODES.M)
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override fun onReceive(context: Context, intent: Intent) {
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val success = intent.getBooleanExtra(WifiManager.EXTRA_RESULTS_UPDATED, false)
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if (success) {
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scanSuccess()
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} else {
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scanFailure()
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}
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}
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}
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}
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private fun scanSuccess() {
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val results = wifiManager.scanResults
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listenerCallback.wifiSuccessResult(results)
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}
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private fun scanFailure() {
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// handle failure: new scan did NOT succeed
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// consider using old scan results: these are the OLD results!
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val results = wifiManager.scanResults
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listenerCallback.wifiFailureResult(results)
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}
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}

‎app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:aapt="http://schemas.android.com/aapt"
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android:width="108dp"
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android:height="108dp"
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android:viewportWidth="108"
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android:viewportHeight="108">
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<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
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<aapt:attr name="android:fillColor">
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<gradient
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android:endX="85.84757"
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android:endY="92.4963"
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android:startX="42.9492"
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android:startY="49.59793"
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android:type="linear">
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<item
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android:color="#44000000"
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android:offset="0.0" />
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<item
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android:color="#00000000"
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android:offset="1.0" />
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</gradient>
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</aapt:attr>
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</path>
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<path
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android:fillColor="#FFFFFF"
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android:fillType="nonZero"
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android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
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android:strokeWidth="1"
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android:strokeColor="#00000000" />
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</vector>

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