Initial commit

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.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 26
+    buildToolsVersion "26.0.1"
+    defaultConfig {
+        applicationId "net.blueness.recyclerviewtest"
+        minSdkVersion 15
+        targetSdkVersion 26
+        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-jre7:$kotlin_version"
+    implementation 'org.jetbrains.anko:anko-common:0.10.1'
+    implementation 'com.android.support:appcompat-v7:26.0.1'
+    implementation 'com.android.support:recyclerview-v7:26.0.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.0'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\Blueness\AppData\Local\Android\Sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# 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/net/blueness/recyclerviewtest/ExampleInstrumentedTest.kt

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+package net.blueness.recyclerviewtest
+
+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("net.blueness.recyclerviewtest", 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="net.blueness.recyclerviewtest">
+
+    <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>
+    </application>
+
+</manifest>

app/src/main/java/net/blueness/recyclerviewtest/Fruit.kt

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+package net.blueness.listviewtest
+
+/**
+ * Created by Blueness on 2017/8/25.
+ */
+
+class Fruit(val name: String, val imageId: Int)

app/src/main/java/net/blueness/recyclerviewtest/FruitAdapter.kt

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+package net.blueness.recyclerviewtest
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import net.blueness.listviewtest.Fruit
+import org.jetbrains.anko.find
+
+/**
+ * Created by Blueness on 2017/8/26.
+ */
+
+class FruitAdapter(private val mFruitList: MutableList<Fruit>):
+        RecyclerView.Adapter<FruitAdapter.ViewHolder>() {
+
+    class ViewHolder(val view: View): RecyclerView.ViewHolder(view) {
+        val fruitImage: ImageView = view.find(R.id.fruit_image)
+        val fruitName: TextView = view.find(R.id.fruit_name)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder{
+        val view = LayoutInflater.from(parent!!.context).inflate(R.layout.fruit_item, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val fruit = mFruitList.get(position)
+        holder.fruitImage.setImageResource(fruit.imageId)
+        holder.fruitName.setText(fruit.name)
+    }
+
+    override fun getItemCount(): Int {
+        return mFruitList.size
+    }
+}

app/src/main/java/net/blueness/recyclerviewtest/MainActivity.kt

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+package net.blueness.recyclerviewtest
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
+import android.support.v7.widget.StaggeredGridLayoutManager
+import net.blueness.listviewtest.Fruit
+import org.jetbrains.anko.find
+import java.util.*
+
+class MainActivity : AppCompatActivity() {
+
+    private val fruitList: MutableList<Fruit> = arrayListOf()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        initFruitLists();
+        val recyclerView: RecyclerView = find(R.id.recycler_view)
+//        val layoutManager = LinearLayoutManager(this)
+//        layoutManager.orientation = LinearLayoutManager.HORIZONTAL
+        val layoutManager = StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL)
+        recyclerView.layoutManager = layoutManager
+        val fruitAdapter = FruitAdapter(fruitList)
+        recyclerView.adapter = fruitAdapter
+    }
+
+    private fun initFruitLists() {
+        for (i in 0..2){
+            val apple = Fruit(getRandomLengthName("Apple"), R.drawable.apple_pic)
+            fruitList.add(apple)
+            val banana = Fruit(getRandomLengthName("Banana"), R.drawable.banana_pic)
+            fruitList.add(banana)
+            val orange = Fruit(getRandomLengthName("Orange"), R.drawable.orange_pic)
+            fruitList.add(orange)
+            val watermelon = Fruit(getRandomLengthName("Watermelon"), R.drawable.watermelon_pic)
+            fruitList.add(watermelon)
+            val pear = Fruit(getRandomLengthName("Pear"), R.drawable.pear_pic)
+            fruitList.add(pear)
+            val grape = Fruit(getRandomLengthName("Grape"), R.drawable.grape_pic)
+            fruitList.add(grape)
+            val pineapple = Fruit(getRandomLengthName("Pineapple"), R.drawable.pineapple_pic)
+            fruitList.add(pineapple)
+            val strawberry = Fruit(getRandomLengthName("Strawberry"), R.drawable.strawberry_pic)
+            fruitList.add(strawberry)
+            val cherry = Fruit(getRandomLengthName("Cherry"), R.drawable.cherry_pic)
+            fruitList.add(cherry)
+            val mango = Fruit(getRandomLengthName("Mango"), R.drawable.mango_pic)
+            fruitList.add(mango)
+        }
+    }
+
+    private fun getRandomLengthName(name:String): String{
+        val lenght = Random().nextInt(20) + 1
+        val builder = StringBuilder()
+        for(i in 0..lenght){
+            builder.append(name + "\n")
+        }
+        return builder.toString()
+    }
+}