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add sample of RxBinding-RxView for Java and Kotlin
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9 files changed

+191
-16
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9 files changed

+191
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‎app/build.gradle‎

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plugins {
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id 'io.franzbecker.gradle-lombok' version '1.14'
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}
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apply plugin: 'com.android.application'
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android {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
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implementation 'com.android.support.constraint:constraint-layout:1.1.2'
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// RxJava
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implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
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// Because RxAndroid releases are few and far between, it is recommended you also
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// explicitly depend on RxJava's latest version for bug fixes and new features.
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// (see https://github.com/ReactiveX/RxJava/releases for latest 2.x.x version)
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implementation 'io.reactivex.rxjava2:rxjava:2.1.16'
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implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
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// Retrofit
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implementation 'com.squareup.retrofit2:retrofit:2.4.0'
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implementation group: 'com.squareup.retrofit2', name: 'converter-gson', version: '2.4.0'
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implementation group: 'com.squareup.retrofit2', name: 'adapter-rxjava2', version: '2.4.0'
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// Kotlin
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
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implementation "org.jetbrains.anko:anko:$anko_version"
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'com.android.support.test:runner:1.0.2'
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androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
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}
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'

‎app/src/main/AndroidManifest.xml‎

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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity android:name=".activity.RxViewActivity" />
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<activity android:name=".activity.RxViewKtActivity"></activity>
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</application>
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</manifest>

‎app/src/main/java/com/buzzbil/rxandroidsample/MainActivity.java‎

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package com.buzzbil.rxandroidsample;
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import android.support.v7.app.AppCompatActivity;
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import android.content.Intent;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.Button;
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import android.widget.LinearLayout;
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import com.buzzbil.rxandroidsample.activity.RxViewActivity;
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import com.buzzbil.rxandroidsample.activity.RxViewKtActivity;
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public class MainActivity extends AppCompatActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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}
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public void startRxView(View view){
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startActivity(new Intent(this, RxViewActivity.class));
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}
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public void startRxViewKt(View view){
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startActivity(new Intent(this, RxViewKtActivity.class));
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}
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}

‎app/src/main/java/com/buzzbil/rxandroidsample/activity/RxViewActivity.java‎

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package com.buzzbil.rxandroidsample.activity;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.Toast;
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import com.buzzbil.rxandroidsample.R;
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import com.jakewharton.rxbinding2.view.RxView;
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import com.jakewharton.rxbinding2.widget.RxCompoundButton;
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import io.reactivex.Observable;
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import io.reactivex.disposables.Disposable;
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import io.reactivex.functions.BiFunction;
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import io.reactivex.functions.Consumer;
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import io.reactivex.functions.Predicate;
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public class RxViewActivity extends AppCompatActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_rx_view);
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Button button = findViewById(R.id.rx_view_btn);
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Observable<Object> clickObs = RxView.clicks(button);
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CheckBox checkBox = findViewById(R.id.rx_view_checkbox);
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Observable<Boolean> checkedTrueObs = RxCompoundButton.checkedChanges(checkBox)
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.skipInitialValue();
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Disposable subscribe = clickObs
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// 클릭 스트림에 체크 스트림의 마지막 값을 조합해서 새로운 스트림을 만든다.
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.withLatestFrom(checkedTrueObs, new BiFunction<Object, Boolean, Boolean>() {
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@Override
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public Boolean apply(Object o, Boolean checked) throws Exception {
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// 새로운 스트림의 데이터는 체크 상태인지 아닌지를 나타낸다.
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return checked;
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}
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})
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// 체크 상태인 경우만 필터링 한다.
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.filter(new Predicate<Boolean>() {
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@Override
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public boolean test(Boolean aBoolean) throws Exception {
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return aBoolean == true;
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}
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})
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// 여기까지 오면 클릭 시점에 마지막 체크 상태가 true 인 경우인 스트림을 나타낸다.
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.subscribe(new Consumer<Object>() {
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@Override
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public void accept(Object o) throws Exception {
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Toast.makeText(RxViewActivity.this, "result : " + o, Toast.LENGTH_SHORT).show();
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}
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});
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}
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}

‎app/src/main/java/com/buzzbil/rxandroidsample/activity/RxViewKtActivity.kt‎

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package com.buzzbil.rxandroidsample.activity
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import android.os.Bundle
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import android.support.v7.app.AppCompatActivity
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import com.buzzbil.rxandroidsample.R
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import com.jakewharton.rxbinding2.view.RxView
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import com.jakewharton.rxbinding2.widget.RxCompoundButton
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import io.reactivex.functions.BiFunction
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import org.jetbrains.anko.find
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import org.jetbrains.anko.toast
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class RxViewKtActivity : AppCompatActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_rx_view)
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val clicks = RxView.clicks(find(R.id.rx_view_btn))
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val checkedChanges = RxCompoundButton.checkedChanges(find(R.id.rx_view_checkbox))
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clicks
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.withLatestFrom(
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checkedChanges,
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BiFunction<Any, Boolean, Boolean> { _, checked -> checked }
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)
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.filter { it }
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.subscribe { toast("result : $it") }
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}
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}

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

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<?xml version="1.0" encoding="utf-8"?>
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<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".MainActivity">
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android:padding="10dp">
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Hello World!"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toRightOf="parent"
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app:layout_constraintTop_toTopOf="parent" />
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical">
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<Button
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:onClick="startRxView"
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android:text="RxView"/>
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<Button
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:onClick="startRxViewKt"
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android:text="RxView Kt"/>
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</LinearLayout>
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</android.support.constraint.ConstraintLayout>
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</ScrollView>

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

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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical"
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tools:context=".activity.RxViewActivity">
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<Button
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android:id="@+id/rx_view_btn"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="RxButton"/>
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<CheckBox
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android:id="@+id/rx_view_checkbox"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Enable!!"/>
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</LinearLayout>

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

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<?xml version="1.0" encoding="utf-8"?>
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<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".activity.RxViewKtActivity">
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<Button
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android:id="@+id/rx_view_btn_kt"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content" />
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</android.support.constraint.ConstraintLayout>

‎build.gradle‎

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// Top-level build file where you can add configuration options common to all sub-projects/modules.
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buildscript {
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buildscript {
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ext.kotlin_version = '1.2.30'
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ext.anko_version = '0.10.5'
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repositories {
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google()
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// NOTE: Do not place your application dependencies here; they belong
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// in the individual module build.gradle files
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}
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classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" }
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}
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allprojects {

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