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‎README.md

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‎flutter_guide/.gitignore

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# Miscellaneous
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*.class
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*.log
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*.pyc
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*.swp
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.DS_Store
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.atom/
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.buildlog/
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.history
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.svn/
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# IntelliJ related
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*.iml
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*.ipr
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*.iws
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.idea/
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# The .vscode folder contains launch configuration and tasks you configure in
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# VS Code which you may wish to be included in version control, so this line
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# is commented out by default.
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#.vscode/
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# Flutter/Dart/Pub related
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**/doc/api/
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.dart_tool/
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.flutter-plugins
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.flutter-plugins-dependencies
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.packages
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.pub-cache/
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.pub/
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/build/
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# Web related
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lib/generated_plugin_registrant.dart
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# Symbolication related
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app.*.symbols
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# Obfuscation related
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app.*.map.json
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# Exceptions to above rules.
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!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

‎flutter_guide/.metadata

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# This file tracks properties of this Flutter project.
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# Used by Flutter tool to assess capabilities and perform upgrades etc.
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#
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# This file should be version controlled and should not be manually edited.
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version:
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revision: b041144f833e05cf463b8887fa12efdec9493488
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channel: stable
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project_type: app

‎flutter_guide/README.md

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# guide
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A new Flutter application.
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## Getting Started
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This project is a starting point for a Flutter application.
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A few resources to get you started if this is your first Flutter project:
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- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
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- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
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For help getting started with Flutter, view our
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[online documentation](https://flutter.dev/docs), which offers tutorials,
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samples, guidance on mobile development, and a full API reference.

‎flutter_guide/android/.gitignore

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gradle-wrapper.jar
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/.gradle
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/captures/
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/gradlew
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/gradlew.bat
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/local.properties
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GeneratedPluginRegistrant.java

‎flutter_guide/android/app/build.gradle

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def localProperties = new Properties()
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def localPropertiesFile = rootProject.file('local.properties')
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if (localPropertiesFile.exists()) {
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localPropertiesFile.withReader('UTF-8') { reader ->
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localProperties.load(reader)
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}
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}
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def flutterRoot = localProperties.getProperty('flutter.sdk')
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if (flutterRoot == null) {
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throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
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}
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def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
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if (flutterVersionCode == null) {
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flutterVersionCode = '1'
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}
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def flutterVersionName = localProperties.getProperty('flutter.versionName')
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if (flutterVersionName == null) {
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flutterVersionName = '1.0'
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}
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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
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android {
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compileSdkVersion 28
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sourceSets {
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main.java.srcDirs += 'src/main/kotlin'
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}
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lintOptions {
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disable 'InvalidPackage'
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}
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defaultConfig {
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// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
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applicationId "com.flutter.guide"
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minSdkVersion 16
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targetSdkVersion 28
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versionCode flutterVersionCode.toInteger()
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versionName flutterVersionName
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}
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buildTypes {
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release {
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// TODO: Add your own signing config for the release build.
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// Signing with the debug keys for now, so `flutter run --release` works.
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signingConfig signingConfigs.debug
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}
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}
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}
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flutter {
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source '../..'
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}
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dependencies {
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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}

‎flutter_guide/android/app/src/debug/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.flutter.guide">
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<!-- Flutter needs it to communicate with the running application
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to allow setting breakpoints, to provide hot reload, etc.
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-->
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>

‎flutter_guide/android/app/src/main/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.flutter.guide">
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<!-- io.flutter.app.FlutterApplication is an android.app.Application that
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calls FlutterMain.startInitialization(this); in its onCreate method.
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In most cases you can leave this as-is, but you if you want to provide
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additional functionality it is fine to subclass or reimplement
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FlutterApplication and put your custom class here. -->
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<application
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android:name="io.flutter.app.FlutterApplication"
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android:label="guide"
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android:icon="@mipmap/ic_launcher">
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<activity
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android:name=".MainActivity"
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android:launchMode="singleTop"
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android:theme="@style/LaunchTheme"
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android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
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android:hardwareAccelerated="true"
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android:windowSoftInputMode="adjustResize">
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<meta-data
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android:name="io.flutter.embedding.android.NormalTheme"
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android:resource="@style/NormalTheme"
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/>
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<meta-data
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android:name="io.flutter.embedding.android.SplashScreenDrawable"
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android:resource="@drawable/launch_background"
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/>
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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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<intent-filter>
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<action android:name="android.intent.action.VIEW"/>
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<category android:name="android.intent.category.DEFAULT" />
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<category android:name="android.intent.category.BROWSABLE" />
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<data android:scheme="ubnet" android:host="ub.com"/>
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</intent-filter>
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</activity>
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<!-- Don't delete the meta-data below.
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This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
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<meta-data
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android:name="flutterEmbedding"
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android:value="2" />
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</application>
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</manifest>

‎flutter_guide/android/app/src/main/kotlin/com/flutter/guide/BasicMessageChannelDemo.kt

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package com.flutter.guide
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import android.app.Activity
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import android.util.Log
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import io.flutter.plugin.common.*
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import java.util.*
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import kotlin.concurrent.timerTask
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/**
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* des:
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*/
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class BasicMessageChannelDemo(var activity: Activity, messenger: BinaryMessenger) : BasicMessageChannel.MessageHandler<Any> {
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private var channel: BasicMessageChannel<Any>
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private var count = 0
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init {
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channel = BasicMessageChannel(messenger, "com.flutter.guide.BasicMessageChannel", StandardMessageCodec())
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channel.setMessageHandler(this)
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startTimer()
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}
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fun startTimer() {
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var timer = Timer().schedule(timerTask {
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activity.runOnUiThread {
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var map = mapOf("count" to count++)
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channel.send(map,object :BasicMessageChannel.Reply<Any>{
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override fun reply(reply: Any?) {
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}
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})
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}
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}, 0, 1000)
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}
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override fun onMessage(message: Any?, reply: BasicMessageChannel.Reply<Any>) {
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val name = (message as Map<String, Any>)["name"]
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val age = (message as Map<String, Any>)["age"]
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var map = mapOf("name" to "hello,$name",
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"age" to "$age"
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)
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reply.reply(map)
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}
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}

‎flutter_guide/android/app/src/main/kotlin/com/flutter/guide/EventChannelDemo.kt

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package com.flutter.guide
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import android.app.Activity
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import io.flutter.plugin.common.BasicMessageChannel
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import io.flutter.plugin.common.BinaryMessenger
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import io.flutter.plugin.common.EventChannel
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import java.util.*
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import kotlin.concurrent.timerTask
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class EventChannelDemo(var activity: Activity, messenger: BinaryMessenger):EventChannel.StreamHandler {
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private var channel: EventChannel
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private var index = 0
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private var events: EventChannel.EventSink? = null
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init {
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channel = EventChannel(messenger, "com.flutter.guide.EventChannel")
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channel.setStreamHandler(this)
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startTimer()
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}
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fun startTimer() {
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var timer = Timer().schedule(timerTask {
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index++
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var map = mapOf("name" to "laomeng${index}",
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"age" to "${index}"
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)
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activity.runOnUiThread {
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events?.success(map)
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}
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}, 0, 1000)
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}
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override fun onListen(arguments: Any?, events: EventChannel.EventSink?) {
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this.events = events
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}
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override fun onCancel(arguments: Any?) {
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this.events = null
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}
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}

‎flutter_guide/android/app/src/main/kotlin/com/flutter/guide/MainActivity.kt

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package com.flutter.guide
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import io.flutter.embedding.android.FlutterActivity
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import io.flutter.embedding.engine.FlutterEngine
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class MainActivity : FlutterActivity() {
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override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
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super.configureFlutterEngine(flutterEngine)
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MethodChannelDemo(this,flutterEngine.dartExecutor.binaryMessenger)
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BasicMessageChannelDemo(this,flutterEngine.dartExecutor.binaryMessenger)
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EventChannelDemo(this,flutterEngine.dartExecutor.binaryMessenger)
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flutterEngine.plugins.add(MyPlugin())
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}
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}

‎flutter_guide/android/app/src/main/kotlin/com/flutter/guide/MethodChannelDemo.kt

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package com.flutter.guide
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import android.app.Activity
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import android.content.Context
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import androidx.annotation.UiThread
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import io.flutter.plugin.common.BinaryMessenger
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import io.flutter.plugin.common.MethodCall
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import io.flutter.plugin.common.MethodChannel
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import java.util.*
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import kotlin.concurrent.timerTask
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/**
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* des:
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*/
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class MethodChannelDemo(var activity: Activity, messenger: BinaryMessenger) : MethodChannel.MethodCallHandler {
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private var channel: MethodChannel
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private var count = 0
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init {
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channel = MethodChannel(messenger, "com.flutter.guide.MethodChannel")
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channel.setMethodCallHandler(this)
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startTimer()
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}
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fun startTimer() {
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var timer = Timer().schedule(timerTask {
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activity.runOnUiThread {
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var map = mapOf("count" to count++)
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channel.invokeMethod("timer", map)
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}
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}, 0, 1000)
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}
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override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
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if (call.method == "sendData") {
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val name = call.argument("name") as String?
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val age = call.argument("age") as Int?
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var map = mapOf("name" to "hello,$name",
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"age" to "$age"
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)
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result.success(map)
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}
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}
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}

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