Create All

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.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 27
+    defaultConfig {
+        applicationId "io.indrian16.getrestapi"
+        minSdkVersion 16
+        targetSdkVersion 27
+        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"
+
+    // Android Support
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support:design:27.1.1'
+    implementation 'com.android.support:cardview-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+
+    //Retrofit 2
+    implementation "com.squareup.retrofit2:retrofit:2.4.0"
+    implementation "com.squareup.retrofit2:adapter-rxjava2:2.4.0"
+    implementation "com.squareup.retrofit2:converter-moshi:2.4.0"
+
+    // Okhttp3 + Interceptor
+    implementation 'com.squareup.okhttp3:okhttp:3.11.0'
+    implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'
+
+    // Rx
+    implementation "io.reactivex.rxjava2:rxjava:2.2.0"
+    implementation "io.reactivex.rxjava2:rxandroid:2.1.0"
+    implementation 'com.github.pwittchen:reactivenetwork-rx2:2.1.0'
+
+    // Picasso
+    implementation 'com.squareup.picasso:picasso:2.71828'
+
+    // Test
+    implementation 'com.android.support:support-v4:27.1.1'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# 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/io/indrian16/getrestapi/ExampleInstrumentedTest.kt

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+package io.indrian16.getrestapi
+
+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("io.indrian16.getrestapi", 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="io.indrian16.getrestapi">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <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=".base.BaseActivity">
+            <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/io/indrian16/getrestapi/BasePresenter.kt

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+package io.indrian16.getrestapi
+
+interface BasePresenter {
+
+    fun start()
+}

app/src/main/java/io/indrian16/getrestapi/BaseView.kt

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+package io.indrian16.getrestapi
+
+interface BaseView<T> {
+
+    val presenter: T
+}

app/src/main/java/io/indrian16/getrestapi/base/BaseActivity.kt

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+package io.indrian16.getrestapi.base
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import io.indrian16.getrestapi.R
+import io.indrian16.getrestapi.util.setupActionBar
+import io.indrian16.getrestapi.util.setupViewPager
+
+class BaseActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_base)
+
+        initView()
+    }
+
+    private fun initView() {
+
+        setupActionBar(R.id.toolbar) {
+
+            supportActionBar?.title = resources.getString(R.string.app_name)
+        }
+        setupViewPager(R.id.view_pager, R.id.tab_layout)
+    }
+
+}

app/src/main/java/io/indrian16/getrestapi/base/adapter/ViewPagerAdapter.kt

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+package io.indrian16.getrestapi.base.adapter
+
+import android.support.v4.app.Fragment
+import android.support.v4.app.FragmentManager
+import android.support.v4.app.FragmentPagerAdapter
+import io.indrian16.getrestapi.ui.post.PostFragment
+import io.indrian16.getrestapi.ui.todo.TodoFragment
+import io.indrian16.getrestapi.ui.user.UserFragment
+import io.indrian16.getrestapi.util.Fragment_TITLE_0
+import io.indrian16.getrestapi.util.Fragment_TITLE_1
+import io.indrian16.getrestapi.util.Fragment_TITLE_2
+import io.indrian16.getrestapi.util.NUM_PAGE
+
+class ViewPagerAdapter(fm: FragmentManager) : FragmentPagerAdapter(fm) {
+
+    override fun getItem(position: Int): Fragment {
+
+        return when (position) {
+
+            0 -> PostFragment()
+            1 -> TodoFragment()
+            2 -> UserFragment()
+
+            else -> PostFragment()
+        }
+    }
+
+    override fun getCount(): Int = NUM_PAGE
+
+    override fun getPageTitle(position: Int): CharSequence? {
+
+        return when(position) {
+
+            0 -> Fragment_TITLE_0
+            1 -> Fragment_TITLE_1
+            2 -> Fragment_TITLE_2
+
+            else -> Fragment_TITLE_0
+        }
+    }
+}

app/src/main/java/io/indrian16/getrestapi/model/Post.kt

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+package io.indrian16.getrestapi.model
+
+data class Post(val userId: Int,
+                val id: Int,
+                val title: String,
+                val body: String)

app/src/main/java/io/indrian16/getrestapi/model/Todo.kt

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+package io.indrian16.getrestapi.model
+
+data class Todo(val userId: Int,
+                val id: Int,
+                val title: String,
+                val completed: Boolean)

app/src/main/java/io/indrian16/getrestapi/model/User.kt

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+package io.indrian16.getrestapi.model
+
+data class User(val id: Int,
+                val name: String,
+                val email: String)

app/src/main/java/io/indrian16/getrestapi/network/ApiService.kt

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+package io.indrian16.getrestapi.network
+
+import io.indrian16.getrestapi.model.Post
+import io.indrian16.getrestapi.model.Todo
+import io.indrian16.getrestapi.model.User
+import io.indrian16.getrestapi.util.BASE_URL
+import io.reactivex.Observable
+import retrofit2.Retrofit
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
+import retrofit2.converter.moshi.MoshiConverterFactory
+import retrofit2.http.GET
+
+interface ApiService {
+
+    @GET("/posts")
+    fun getPosts(): Observable<List<Post>>
+
+    @GET("/todos")
+    fun getTodos(): Observable<List<Todo>>
+
+    @GET("/users")
+    fun getUsers(): Observable<List<User>>
+
+    companion object {
+
+        fun create(): ApiService {
+
+            val retrofit = Retrofit.Builder()
+                    .baseUrl(BASE_URL)
+                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+                    .addConverterFactory(MoshiConverterFactory.create())
+                    .build()
+
+            return retrofit.create(ApiService::class.java)
+        }
+    }
+}