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yanchunlanyanchunlan
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架构搭建
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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea/workspace.xml
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/.idea/libraries
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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### Android template
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# Built application files
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*.apk
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*.ap_
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# Files for the ART/Dalvik 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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out/
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# Gradle files
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.gradle/
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build/
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# Local configuration file (sdk path, etc)
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local.properties
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# Proguard folder generated by Eclipse
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proguard/
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# Log Files
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*.log
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# Android Studio Navigation editor temp files
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.navigation/
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# Android Studio captures folder
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captures/
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# Intellij
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*.iml
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.idea/workspace.xml
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.idea/tasks.xml
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.idea/gradle.xml
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.idea/dictionaries
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.idea/libraries
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# Keystore files
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*.jks
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# External native build folder generated in Android Studio 2.2 and later
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.externalNativeBuild
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# Google Services (e.g. APIs or Firebase)
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google-services.json
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# Freeline
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freeline.py
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freeline/
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freeline_project_description.json
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‎.idea/gradle.xml

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‎.idea/misc.xml

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‎.idea/modules.xml

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‎.idea/runConfigurations.xml

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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 26
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buildToolsVersion "26.0.0"
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defaultConfig {
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applicationId "com.example.stack"
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minSdkVersion 16
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targetSdkVersion 26
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "android.support.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.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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androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.1', {
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exclude group: 'com.android.support', module: 'support-annotations'
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})
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implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
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implementation 'org.jetbrains.anko:anko-commons:0.10.1'
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implementation 'com.android.support:appcompat-v7:26+'
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testImplementation 'junit:junit:4.12'
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implementation 'com.android.support.constraint:constraint-layout:1.0.2'
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implementation 'com.android.support:design:26.0.2'
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implementation 'com.android.support:cardview-v7:26.0.2'
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in F:\AndroidStudio\sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive 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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# Add any project specific keep options here:
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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/example/stack/ExampleInstrumentedTest.kt

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package com.example.stack
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import android.support.test.InstrumentationRegistry
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import android.support.test.runner.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.getTargetContext()
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assertEquals("com.example.stack", 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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package="com.example.stack">
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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:theme="@style/AppTheme">
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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/example/stack/MainActivity.kt

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package com.example.stack
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import android.os.Bundle
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import android.support.v7.app.AppCompatActivity
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import android.support.v7.widget.LinearLayoutManager
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import android.support.v7.widget.RecyclerView
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import android.support.v7.widget.helper.ItemTouchHelper
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class MainActivity : AppCompatActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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RecyclerView(this).run {
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setContentView(this)
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layoutManager = LinearLayoutManager(context)
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val mAdapter = StackAdapter()
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adapter = mAdapter
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ItemTouchHelper(StackCallBack(this,mAdapter,mAdapter.list)).attachToRecyclerView(this)
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}
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}
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}

‎app/src/main/java/com/example/stack/StackAdapter.kt

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package com.example.stack
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import android.support.v7.widget.RecyclerView
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import android.view.View
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import android.view.ViewGroup
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import kotlinx.android.synthetic.main.item_stack.view.*
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import org.jetbrains.anko.toast
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/**
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* Created by yanchunlan on 2017/9/3.
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*/
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class StackAdapter(val list: ArrayList<StackEntity> = arrayListOf())
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: RecyclerView.Adapter<StackAdapter.StackViewHolder>() {
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private val drawables = arrayOf(R.mipmap.stack1, R.mipmap.stack2,
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R.mipmap.stack3, R.mipmap.stack4,
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R.mipmap.stack5, R.mipmap.stack6)
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init {
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drawables.forEachIndexed { index, item ->
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list.add(StackEntity(item, index))
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}
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}
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override fun onBindViewHolder(holder: StackViewHolder, position: Int) {
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with(holder.itemView) {
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val item=list[position]
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item_stack_iv.setBackgroundResource(item.mipmap)
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item_stack_tv.text = String.format(context.getString(R.string.item_tv), item.description)
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}
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}
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override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): StackViewHolder
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= StackViewHolder(View.inflate(parent?.context, R.layout.item_stack, null))
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override fun getItemCount(): Int = list.size
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class StackViewHolder(item: View) : RecyclerView.ViewHolder(item) {
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init {
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item.setOnClickListener {
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it.context.toast("position: $layoutPosition 被点击了")
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}
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}
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}
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}

‎app/src/main/java/com/example/stack/StackCallBack.kt

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package com.example.stack
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import android.support.v7.widget.RecyclerView
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import android.support.v7.widget.helper.ItemTouchHelper
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import org.jetbrains.anko.toast
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/**
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* Created by yanchunlan on 2017/9/3.
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*
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* 相对于 callback 少实现 getMovementFlags(RecyclerView recyclerView, ViewHolder viewHolder) 方法
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* int dragDirs, int swipeDirs
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* 不支持拖拽 ，支持滑动
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*
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*/
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class StackCallBack(val mRecyclerView: RecyclerView,
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val mAdapter: StackAdapter,
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val mData: ArrayList<StackEntity>) :
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ItemTouchHelper.SimpleCallback(0,
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ItemTouchHelper.DOWN or ItemTouchHelper.UP or ItemTouchHelper.LEFT or ItemTouchHelper.RIGHT) {
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/**
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* 拖动置位 true 置位 false 不置位
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*/
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override fun onMove(recyclerView: RecyclerView?,
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viewHolder: RecyclerView.ViewHolder?,
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target: RecyclerView.ViewHolder?): Boolean = false
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/**
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*滑动删除
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*/
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override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
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viewHolder.run {
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val item = mData.removeAt(layoutPosition)
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when (direction) {
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ItemTouchHelper.DOWN -> itemView.context.toast("方向：下，滑掉的第${item.description}个美女")
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ItemTouchHelper.UP -> itemView.context.toast("方向：上，滑掉的第${item.description}个美女")
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ItemTouchHelper.LEFT -> itemView.context.toast("方向：左，滑掉的第${item.description}个美女")
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ItemTouchHelper.RIGHT -> itemView.context.toast("方向：右，滑掉的第${item.description}个美女")
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}
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// 加到顶部，数据重复利用
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mData.add(0, item)
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mAdapter.notifyDataSetChanged()
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}
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}
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}
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