initial commit

.gitignore

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+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+.idea/
+*.iml
+.DS_Store

README.md

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+Code example for the conference talk: [Pragmatic Kotlin on Android](https://speakerdeck.com/mutexkid/pragmatic-kotlin-on-android)

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion "26.0.1"
+    defaultConfig {
+        applicationId "com.example.joshskeen.stockwatcher"
+        minSdkVersion 22
+        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'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    dataBinding.enabled = true
+    kapt.generateStubs = true
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.0', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    implementation 'com.android.support:appcompat-v7:26.0.1'
+    implementation 'com.android.support:design:26.0.1'
+    implementation 'com.google.dagger:dagger:2.11'
+    kapt 'com.google.dagger:dagger-compiler:2.11'
+    kapt "com.android.databinding:compiler:3.0.0-beta2"
+    implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    api 'org.glassfish:javax.annotation:10.0-b28'
+    implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
+    implementation 'com.squareup.okhttp3:logging-interceptor:3.4.2'
+    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
+    implementation 'com.jakewharton.timber:timber:4.5.1'
+    testImplementation 'junit:junit:4.12'
+
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+}
+repositories {
+    maven {
+        url 'http://dl.bintray.com/kotlin/kotlin-eap-1.2'
+    }
+}

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 /Users/joshskeen/Library/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/com/example/joshskeen/stockwatcher/ExampleInstrumentedTest.java

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+package com.example.joshskeen.stockwatcher;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.example.joshskeen.kointracker", appContext.getPackageName());
+    }
+}

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"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.joshskeen.stockwatcher">
+
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:name="com.example.joshskeen.stockwatcher.StockWatcherApplication"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+        <activity android:name="com.example.joshskeen.stockwatcher.ui.StockInfoActivity">
+            <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/com/example/joshskeen/stockwatcher/AppComponent.kt

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+package com.example.joshskeen.stockwatcher
+
+import javax.inject.Singleton
+
+import dagger.Component
+import com.example.joshskeen.stockwatcher.ui.StockInfoFragment
+
+@Singleton
+@Component(modules = arrayOf(AppModule::class))
+interface AppComponent {
+    fun inject(fragment: StockInfoFragment)
+}

app/src/main/java/com/example/joshskeen/stockwatcher/AppModule.kt

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+package com.example.joshskeen.stockwatcher
+
+import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
+
+import java.util.concurrent.TimeUnit
+
+import javax.inject.Singleton
+
+import dagger.Module
+import dagger.Provides
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import com.example.joshskeen.stockwatcher.service.ContentTypeHeaderInterceptor
+import com.example.joshskeen.stockwatcher.service.ServiceConfig
+import com.example.joshskeen.stockwatcher.service.StockService
+import com.example.joshskeen.stockwatcher.service.repository.StockDataRepository
+
+
+private const val STOCK_SERVICE_ENDPOINT = "http://dev.markitondemand.com/MODApis/Api/v2/"
+private const val HTTP_READ_TIMEOUT = 60
+private const val HTTP_CONNECT_TIMEOUT = 60
+
+@Module
+internal class AppModule {
+
+    @Provides
+    @Singleton
+    fun provideStockDataRepository(stockService: StockService): StockDataRepository =
+            StockDataRepository(stockService)
+
+    @Provides
+    fun provideStockService(retrofit: Retrofit): StockService = StockService(retrofit)
+
+    @Provides
+    fun provideServiceConfig() = ServiceConfig(STOCK_SERVICE_ENDPOINT)
+
+    @Provides
+    fun provideRetrofit(client: OkHttpClient, serviceConfig: ServiceConfig) =
+            Retrofit.Builder()
+                    .baseUrl(serviceConfig.baseServiceUrl)
+                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+                    .client(client)
+                    .addConverterFactory(GsonConverterFactory.create())
+                    .build()!!
+
+    @Provides
+    fun provideOkHttpClient(loggingInterceptor: HttpLoggingInterceptor) = OkHttpClient.Builder()
+            .readTimeout(HTTP_READ_TIMEOUT.toLong(), TimeUnit.SECONDS)
+            .connectTimeout(HTTP_CONNECT_TIMEOUT.toLong(), TimeUnit.SECONDS)
+            .addInterceptor(loggingInterceptor)
+            .addInterceptor(ContentTypeHeaderInterceptor())
+            .build()
+
+    @Provides
+    fun provideLoggingInterceptor() = HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY)
+}

app/src/main/java/com/example/joshskeen/stockwatcher/StockWatcherApplication.kt

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+package com.example.joshskeen.stockwatcher
+
+import android.app.Application
+
+class StockWatcherApplication : Application() {
+
+    val appComponent: AppComponent by lazy {
+        DaggerAppComponent.builder().appModule(AppModule()).build()
+    }
+
+}

app/src/main/java/com/example/joshskeen/stockwatcher/extensions/ContextExt.kt

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+package com.example.joshskeen.stockwatcher.extensions
+
+import android.content.Context
+import android.support.v4.app.Fragment
+import com.example.joshskeen.stockwatcher.AppComponent
+import com.example.joshskeen.stockwatcher.StockWatcherApplication
+
+val Context.component: AppComponent
+    get() = (applicationContext as StockWatcherApplication).appComponent
+
+val Fragment.component: AppComponent
+    get() = activity.component

app/src/main/java/com/example/joshskeen/stockwatcher/extensions/FragmentExt.kt

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+package com.example.joshskeen.stockwatcher.extensions
+

app/src/main/java/com/example/joshskeen/stockwatcher/service/ContentTypeHeaderInterceptor.kt

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+package com.example.joshskeen.stockwatcher.service
+
+import okhttp3.Interceptor
+import okhttp3.Response
+
+
+private const val CONTENT_TYPE = "Content-Type"
+private const val APPLICATION_JSON = "application/json"
+
+class ContentTypeHeaderInterceptor : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain
+                .request()
+                .newBuilder()
+                .addHeader(CONTENT_TYPE, APPLICATION_JSON)
+                .build()
+        return chain.proceed(request)
+    }
+
+}

app/src/main/java/com/example/joshskeen/stockwatcher/service/ServiceConfig.kt

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+package com.example.joshskeen.stockwatcher.service
+
+
+data class ServiceConfig(val baseServiceUrl: String)

app/src/main/java/com/example/joshskeen/stockwatcher/service/StockInfoForSymbol.kt

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+package com.example.joshskeen.stockwatcher.service
+
+
+data class StockInfoForSymbol(val stockSymbol: StockSymbol,
+                              val stockInfoResponse: StockInfoResponse)

app/src/main/java/com/example/joshskeen/stockwatcher/service/StockInfoResponse.kt

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+package com.example.joshskeen.stockwatcher.service
+
+import com.google.gson.annotations.SerializedName
+
+data class StockInfoResponse(
+        @SerializedName("Status")
+        private val status: String,
+        @SerializedName("Name")
+        private val name: String,
+        @SerializedName("LastPrice")
+        private val lastPrice: Double,
+        @SerializedName("Change")
+        private val change: Double,
+        @SerializedName("ChangePercent")
+        private val changePercent: Double,
+        @SerializedName("MarketCap")
+        private val marketCap: Long,
+        @SerializedName("Volume")
+        private val volume: Long,
+        @SerializedName("ChangeYTD")
+        private val changeYTD: Double,
+        @SerializedName("ChangePercentYTD")
+        private val changePercentYTD: Double,
+        @SerializedName("High")
+        private val high: Double,
+        @SerializedName("Low")
+        private val low: Double,
+        @SerializedName("Open")
+        private val open: Double)

app/src/main/java/com/example/joshskeen/stockwatcher/service/StockService.kt

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+package com.example.joshskeen.stockwatcher.service
+
+
+import io.reactivex.Observable
+import retrofit2.Retrofit
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+class StockService(retrofit: Retrofit) {
+
+    private val service by lazy { retrofit.create(StockServiceInterface::class.java) }
+
+    internal interface StockServiceInterface {
+        @GET("Quote/json")
+        fun stockInfo(@Query("symbol") symbol: String): Observable<StockInfoResponse>
+
+        @GET("Lookup/json")
+        fun lookupStock(@Query("input") symbol: String): Observable<List<StockSymbol>>
+    }
+
+    fun stockInfo(symbol: String): Observable<StockInfoResponse> = service.stockInfo(symbol)
+    fun lookupStock(symbol: String): Observable<List<StockSymbol>> = service.lookupStock(symbol)
+}

app/src/main/java/com/example/joshskeen/stockwatcher/service/StockSymbol.kt

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+package com.example.joshskeen.stockwatcher.service
+
+import com.google.gson.annotations.SerializedName
+
+data class StockSymbol(
+        @SerializedName("Symbol")
+        val symbol: String,
+        @SerializedName("Name")
+        val name: String)

app/src/main/java/com/example/joshskeen/stockwatcher/service/StockSymbolError.kt

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+package com.example.joshskeen.stockwatcher.service
+
+data class StockSymbolError(override val message: String) : Exception()