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
+    defaultConfig {
+        applicationId "com.sunil.twitterkotlinmvvm"
+        minSdkVersion 16
+        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'
+        }
+    }
+
+    dataBinding {
+        enabled = true
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+
+    // RX
+    compile "io.reactivex.rxjava2:rxjava:$rxjava2_version"
+    compile "io.reactivex.rxjava2:rxandroid:$rxjava2_version"
+
+    compile "com.android.support:recyclerview-v7:$support_version"
+    compile "com.android.support:cardview-v7:$support_version"
+    compile "com.android.support:design:$support_version"
+
+    compile 'com.twitter.sdk.android:twitter-core:3.1.1'
+    compile 'com.squareup.picasso:picasso:2.5.2'
+
+    kapt 'com.android.databinding:compiler:2.3.2'
+}
+
+kapt {
+    generateStubs = true
+}

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/com/sunil/twitterkotlinmvvm/ExampleInstrumentedTest.kt

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+package com.sunil.twitterkotlinmvvm
+
+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("com.sunil.twitterkotlinmvvm", 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="com.sunil.twitterkotlinmvvm">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:name=".MainApplication"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity"
+            android:screenOrientation="portrait">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".ui.TimelineActivity"
+            android:screenOrientation="portrait"/>
+    </application>
+
+</manifest>

app/src/main/java/com/sunil/twitterkotlinmvvm/MainActivity.kt

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+package com.sunil.twitterkotlinmvvm
+
+import android.content.Intent
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.Toast
+import com.sunil.twitterkotlinmvvm.ui.TimelineActivity
+import com.twitter.sdk.android.core.Callback
+import com.twitter.sdk.android.core.Result
+import com.twitter.sdk.android.core.TwitterException
+import com.twitter.sdk.android.core.TwitterSession
+import com.twitter.sdk.android.core.identity.TwitterLoginButton
+
+class MainActivity : AppCompatActivity() {
+
+    var loginButton: TwitterLoginButton? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        loginButton = findViewById(R.id.loginButton)
+        loginButton!!.callback = object : Callback<TwitterSession>() {
+            override fun success(result: Result<TwitterSession>) {
+                startActivity(Intent(this@MainActivity, TimelineActivity::class.java))
+                finish()
+            }
+
+            override fun failure(exception: TwitterException) {
+                Toast.makeText(applicationContext, exception.message, Toast.LENGTH_LONG).show()
+            }
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent) {
+        super.onActivityResult(requestCode, resultCode, data)
+        loginButton!!.onActivityResult(requestCode, resultCode, data)
+    }
+}

app/src/main/java/com/sunil/twitterkotlinmvvm/MainApplication.kt

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+package com.sunil.twitterkotlinmvvm
+
+import android.app.Application
+import android.content.Context
+import com.twitter.sdk.android.core.Twitter
+import com.twitter.sdk.android.core.TwitterAuthConfig
+import com.twitter.sdk.android.core.TwitterConfig
+
+/**
+ * Created by sunil on 05-11-2017.
+ */
+class MainApplication : Application() {
+
+    init {
+        instance = this
+    }
+
+    companion object {
+        private var instance: MainApplication? = null
+
+        fun applicationContext() : Context {
+            return instance!!.applicationContext
+        }
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        Twitter.initialize(TwitterConfig.Builder(this).twitterAuthConfig
+        (TwitterAuthConfig(getString(R.string.com_twitter_sdk_android_CONSUMER_KEY),
+                getString(R.string.com_twitter_sdk_android_CONSUMER_SECRET))).build())
+
+        val context: Context = MainApplication.applicationContext()
+    }
+
+}

app/src/main/java/com/sunil/twitterkotlinmvvm/ui/TimelineActivity.kt

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+package com.sunil.twitterkotlinmvvm.ui
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.support.v7.widget.Toolbar
+import com.sunil.twitterkotlinmvvm.R
+
+/**
+ * Created by sunil on 05-11-2017.
+ */
+class TimelineActivity : AppCompatActivity() {
+
+    private val TAG: String = javaClass.simpleName
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_timeline)
+
+        val toolbar = findViewById<Toolbar>(R.id.toolbar)
+
+        setSupportActionBar(toolbar)
+
+        if (savedInstanceState == null){
+            supportFragmentManager.beginTransaction()
+                    .replace(R.id.main_container, TimelineFragment.newInstance("Oi"))
+                    .commit()
+        }
+    }
+
+}

app/src/main/java/com/sunil/twitterkotlinmvvm/ui/TimelineAdapter.kt

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+package ccom.sunil.twitterkotlinmvvm.ui
+
+import android.content.Context
+import android.databinding.DataBindingUtil
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import com.squareup.picasso.Picasso
+import com.sunil.twitterkotlinmvvm.MainApplication
+import com.sunil.twitterkotlinmvvm.R
+import com.sunil.twitterkotlinmvvm.databinding.TimelineItemBinding
+import com.sunil.twitterkotlinmvvm.viewmodel.ProfileViewModel
+import com.sunil.twitterkotlinmvvm.viewmodel.TimelineItemViewModel
+import com.twitter.sdk.android.core.models.Tweet
+
+
+/**
+ * Created by sunil on 05-11-2017.
+ */
+class TimelineAdapter(var items: List<Tweet>) : RecyclerView.Adapter<TimelineAdapter.TimelineViewHolder>() {
+
+    val TAG = javaClass.simpleName
+
+    constructor() : this(emptyList())
+
+    // Provide a reference to the views for each data item
+    class TimelineViewHolder(var view: TimelineItemBinding) : RecyclerView.ViewHolder(view.root)
+
+    override fun onBindViewHolder(holder: TimelineViewHolder?, position: Int) {
+        // - get element from your dataset at this position & replace the contents of the view with that element
+        holder!!.view.vm.tweet.set(items[position].text)
+        holder.view.vm.user.set(items[position].user.screenName)
+        val profileViewModel = ProfileViewModel(MainApplication.applicationContext(), items[position].user.profileImageUrl)
+        holder.view.vm.imageUrl.set(profileViewModel.profileImage!!.get())
+        holder.view.vm.userScreenName.set(String.format("@%s", items[position].user.screenName))
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): TimelineAdapter.TimelineViewHolder {
+        val inflater = parent!!.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val binding: TimelineItemBinding = DataBindingUtil.inflate(inflater, R.layout.timeline_item, parent, false)
+        binding.vm = TimelineItemViewModel()
+
+        return TimelineViewHolder(binding)
+    }
+
+    override fun getItemCount(): Int {
+        return items.size
+    }
+
+    fun updateItems(tweets: List<Tweet>){
+        items = emptyList()
+        items = tweets
+        notifyDataSetChanged()
+    }
+
+}