Initial commit

.gitignore

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+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+out/
+build/
+.gradle/
+.ART
+# Project files
+*.iml
+.idea
+# .idea/workspace.xml
+
+# Local configuration file (sdk path, etc)
+local.properties
+keystore.properties
+
+# Values file
+values.properties
+
+# Windows thumbnail db
+.DS_Store
+
+# Idea non-crucial project fileS
+*.iws
+
+# Sandbox stuff
+_sandbox

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.2"
+    defaultConfig {
+        applicationId "com.arun.rxgoogleinstant.sample"
+        minSdkVersion 16
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true;
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:25.1.1'
+    compile 'com.jakewharton.rxbinding:rxbinding:1.0.0'
+    compile 'com.jakewharton:butterknife:8.5.1'
+    annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
+    compile 'com.android.support:design:25.1.1'
+    testCompile 'junit:junit:4.12'
+    compile project(path: ':library')
+}

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\arunk\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/com/arun/rxgoogleinstant/sample/ExampleInstrumentedTest.java

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+package com.arun.rxgoogleinstant.sample;
+
+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.*;
+
+/**
+ * Instrumentation 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.arun.rxgoogleinstant", 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.arun.rxgoogleinstant.sample">
+
+    <application
+        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=".MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar">
+            <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/arun/rxgoogleinstant/sample/MainActivity.java

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+package com.arun.rxgoogleinstant.sample;
+
+import android.graphics.Color;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.util.DiffUtil;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.Toolbar;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.arun.rxgoogleinstant.RxSuggestions;
+import com.jakewharton.rxbinding.widget.RxTextView;
+import com.jakewharton.rxbinding.widget.TextViewAfterTextChangeEvent;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Action1;
+import rx.functions.Func1;
+import rx.subscriptions.CompositeSubscription;
+
+public class MainActivity extends AppCompatActivity {
+    private static final String TAG = MainActivity.class.getSimpleName();
+    @BindView(R.id.toolbar)
+    Toolbar toolbar;
+    @BindView(R.id.search_box)
+    EditText searchBox;
+    @BindView(R.id.recycler_view)
+    RecyclerView recyclerView;
+    @BindView(R.id.fab)
+    FloatingActionButton fab;
+
+    private final CompositeSubscription subscription = new CompositeSubscription();
+    private SuggestionsAdapter suggestionsAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        ButterKnife.bind(this);
+        setSupportActionBar(toolbar);
+
+        suggestionsAdapter = new SuggestionsAdapter();
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(suggestionsAdapter);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        subscription.add(RxTextView.afterTextChangeEvents(searchBox)
+                .map(new Func1<TextViewAfterTextChangeEvent, String>() {
+                    @Override
+                    public String call(TextViewAfterTextChangeEvent textViewAfterTextChangeEvent) {
+                        return textViewAfterTextChangeEvent.editable().toString();
+                    }
+                }).filter(new Func1<String, Boolean>() {
+                    @Override
+                    public Boolean call(String s) {
+                        return !TextUtils.isEmpty(s);
+                    }
+                }).subscribeOn(AndroidSchedulers.mainThread())
+                .debounce(300, TimeUnit.MILLISECONDS)
+                .compose(RxSuggestions.suggestionsTransformer())
+                .doOnNext(new Action1<List<String>>() {
+                    @Override
+                    public void call(List<String> strings) {
+                        suggestionsAdapter.setSuggestions(strings);
+                    }
+                }).doOnError(new Action1<Throwable>() {
+                    @Override
+                    public void call(Throwable throwable) {
+                        Log.e(TAG, throwable.toString());
+                    }
+                }).subscribe());
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        subscription.clear();
+    }
+
+    @OnClick(R.id.fab)
+    public void onClick() {
+        searchBox.setText("");
+    }
+
+    static class SuggestionsAdapter extends RecyclerView.Adapter<SuggestionsAdapter.ListItemHolder> {
+        private final List<String> strings = new ArrayList<>();
+
+        SuggestionsAdapter() {
+            setHasStableIds(true);
+        }
+
+        @Override
+        public ListItemHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            return new ListItemHolder(LayoutInflater.from(parent.getContext()).inflate(android.R.layout.simple_list_item_1, parent, false));
+        }
+
+        @Override
+        public void onBindViewHolder(ListItemHolder holder, int position) {
+            if (holder.itemView instanceof TextView) {
+                ((TextView) holder.itemView).setText(strings.get(position));
+                ((TextView) holder.itemView).setTextColor(Color.BLACK);
+            }
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return strings.get(position).hashCode();
+        }
+
+        @Override
+        public int getItemCount() {
+            return strings.size();
+        }
+
+        public void setSuggestions(@NonNull List<String> newStrings) {
+            final SuggestionDiff suggestionDiff = new SuggestionDiff(strings, newStrings);
+            final DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(suggestionDiff, true);
+            strings.clear();
+            strings.addAll(newStrings);
+            diffResult.dispatchUpdatesTo(this);
+        }
+
+        static class ListItemHolder extends RecyclerView.ViewHolder {
+            ListItemHolder(View itemView) {
+                super(itemView);
+            }
+        }
+
+        private static class SuggestionDiff extends DiffUtil.Callback {
+
+            private final List<String> newList;
+            private final List<String> oldList;
+
+            SuggestionDiff(@NonNull List<String> oldList, @NonNull List<String> newList) {
+                this.oldList = oldList;
+                this.newList = newList;
+            }
+
+            @Override
+            public int getOldListSize() {
+                return oldList.size();
+            }
+
+            @Override
+            public int getNewListSize() {
+                return newList.size();
+            }
+
+            @Override
+            public boolean areItemsTheSame(int oldItemPosition, int newItemPosition) {
+                return caseInsensitiveComparison(oldItemPosition, newItemPosition);
+            }
+
+            @Override
+            public boolean areContentsTheSame(int oldItemPosition, int newItemPosition) {
+                return caseInsensitiveComparison(oldItemPosition, newItemPosition);
+            }
+
+            private boolean caseInsensitiveComparison(int oldItemPosition, int newItemPosition) {
+                return oldList.get(oldItemPosition).equalsIgnoreCase(newList.get(newItemPosition));
+            }
+        }
+    }
+}

app/src/main/res/drawable/ic_clear_black_24dp.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="24.0"
+    android:viewportWidth="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z" />
+</vector>

app/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <android.support.design.widget.AppBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+    </android.support.design.widget.AppBarLayout>
+
+    <include layout="@layout/content_main" />
+
+    <android.support.design.widget.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:layout_margin="@dimen/fab_margin"
+        app:srcCompat="@drawable/ic_clear_black_24dp" />
+
+</android.support.design.widget.CoordinatorLayout>