first

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,40 @@
+apply plugin: 'com.android.application'
+apply plugin: 'com.neenbedankt.android-apt'
+apply plugin: 'com.jakewharton.butterknife'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion "26.0.0"
+    defaultConfig {
+        applicationId "com.yexue.android.rrxjava"
+        minSdkVersion 15
+        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'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(include: ['*.jar'], dir: 'libs')
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    //下面两个即为引入的依赖
+    compile 'com.android.support:appcompat-v7:26.+'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    compile 'io.reactivex:rxjava:1.0.9'
+    compile 'io.reactivex:rxandroid:0.24.0'
+    compile 'com.android.support:design:26.+'
+    testCompile 'junit:junit:4.12'
+    //Butter Knife注解
+    compile 'com.jakewharton:butterknife:8.5.1'
+    annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
+    apt 'com.jakewharton:butterknife-compiler:8.5.1'
+}

app/proguard-rules.pro

@@ -0,0 +1,25 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\admin\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/yexue/android/rrxjava/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.yexue.android.rrxjava;
+
+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.yexue.android.rrxjava", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.yexue.android.rrxjava">
+
+    <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=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".MapActivity"
+            android:label="@string/title_activity_map"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity android:name=".HttpActivity" />
+        <activity android:name=".ActionActivity" />
+        <activity android:name=".TestActivity"></activity>
+    </application>
+
+</manifest>

app/src/main/java/com/yexue/android/rrxjava/ActionActivity.java

@@ -0,0 +1,93 @@
+package com.yexue.android.rrxjava;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+
+import rx.Observable;
+import rx.Subscriber;
+import rx.functions.Action0;
+import rx.functions.Action1;
+
+public class ActionActivity extends AppCompatActivity {
+    private static String log = "ActionActivityLOG";
+    Button action_btn1, action_btn2, action_btn3;
+
+
+    Observable<String> observable;
+    Action0 onCompletedAction;
+    Action1<Throwable> onErrorAction;
+    Action1<String> onNextAction;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_action);
+        action_btn1 = (Button) findViewById(R.id.action_btn1);
+        action_btn2 = (Button) findViewById(R.id.action_btn2);
+        action_btn3 = (Button) findViewById(R.id.action_btn3);
+        method1();
+        action_btn1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // 自动创建 Subscriber ，并使用 onNextAction 来定义 onNext()
+                observable.subscribe(onNextAction);
+            }
+        });
+        action_btn2.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // 自动创建 Subscriber ，并使用 onNextAction 和 onErrorAction 来定义 onNext() 和 onError()
+                observable.subscribe(onNextAction, onErrorAction);
+            }
+        });
+        action_btn3.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // 自动创建 Subscriber ，并使用 onNextAction、 onErrorAction 和 onCompletedAction 来定义 onNext()、 onError() 和 onCompleted()
+                observable.subscribe(onNextAction, onErrorAction, onCompletedAction);
+            }
+        });
+    }
+
+    /**
+     * 除了 subscribe(Observer) 和 subscribe(Subscriber) ，
+     * subscribe() 还支持不完整定义的回调，RxJava 会自动根据定义创建出 Subscriber 。形式如下：
+     */
+    private void method1() {
+        //onNext
+        onNextAction = new Action1<String>() {
+            @Override
+            public void call(String s) {
+                Log.d(log, s);
+            }
+        };
+        //onError
+        onErrorAction = new Action1<Throwable>() {
+            @Override
+            public void call(Throwable throwable) {
+                Log.d(log, throwable.getMessage());
+            }
+        };
+        //onCompleted
+        onCompletedAction = new Action0() {
+            @Override
+            public void call() {
+                Log.d(log, "onCompletedAction");
+            }
+        };
+        observable = Observable.create(new Observable.OnSubscribe<String>() {
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                subscriber.onNext("he");
+                subscriber.onCompleted();
+                //TODO 未执行onErrorAction，原因未知
+                int a[] = {1, 3, 5, 6, 5, 4, 54, 8, 4};
+                Log.d(log, a[100] + "");
+            }
+        });
+
+    }
+}

app/src/main/java/com/yexue/android/rrxjava/HttpActivity.java

@@ -0,0 +1,46 @@
+package com.yexue.android.rrxjava;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Handler;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+
+import com.yexue.android.rrxjava.utils.HttpConn;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+public class HttpActivity extends AppCompatActivity {
+    ImageView img;
+    Button img_btn;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_http);
+        img = (ImageView) findViewById(R.id.img);
+        img_btn = (Button) findViewById(R.id.img_btn);
+        final String picStr = "http://www.shixiu.net/d/file/p/2bc22002a6a61a7c5694e7e641bf1e6e.jpg";
+        final Handler handler = new Handler();
+        img_btn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                new HttpConn(picStr, handler, new HttpConn.CallBack() {
+                    @Override
+                    public void onCompleted(Bitmap bitmap) {
+                        img.setImageBitmap(bitmap);
+                    }
+                }).start();
+            }
+        });
+    }
+
+
+}

app/src/main/java/com/yexue/android/rrxjava/MainActivity.java

@@ -0,0 +1,180 @@
+package com.yexue.android.rrxjava;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+
+import rx.Observable;
+import rx.Observer;
+import rx.Subscriber;
+import rx.functions.Action1;
+
+public class MainActivity extends AppCompatActivity {
+    private static String tag = "MainActivityLOG";
+
+    TextView te;
+    Button toMap, toHttp, btn3, btn4, btn5, btn6;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        te = (TextView) findViewById(R.id.te);
+        toMap = (Button) findViewById(R.id.toMap);
+        toHttp = (Button) findViewById(R.id.toHttp);
+        btn3 = (Button) findViewById(R.id.btn3);
+        btn4 = (Button) findViewById(R.id.btn4);
+        btn5 = (Button) findViewById(R.id.btn5);
+        btn6 = (Button) findViewById(R.id.btn6);
+
+        method0();
+        toMap.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(MainActivity.this, MapActivity.class));
+            }
+        });
+        toHttp.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(MainActivity.this, HttpActivity.class));
+            }
+        });
+        btn3.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(MainActivity.this, ActionActivity.class));
+            }
+        });
+        btn4.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(MainActivity.this, TestActivity.class));
+            }
+        });
+    }
+
+    public void method0() {
+        /**
+         * 观察者
+         */
+        Observer<String> observer = new Observer<String>() {
+            @Override
+            public void onCompleted() {
+                Log.d(tag, "Completed!");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Log.d(tag, "Error!");
+            }
+
+            @Override
+            public void onNext(String s) {
+                Log.d(tag, "Item: " + s);
+            }
+        };
+        /**
+         * 订阅内容
+         */
+        Subscriber<String> subscriber = new Subscriber<String>() {
+            @Override
+            public void onCompleted() {
+                Log.d(tag, ">>>Completed!");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Log.d(tag, ">>>Error!");
+            }
+
+            @Override
+            public void onNext(String s) {
+                Log.d(tag, ">>>Item: " + s);
+            }
+        };
+        /**
+         * 被观察者
+         */
+        Observable observable = Observable.create(new Observable.OnSubscribe<String>() {
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                subscriber.onNext("Hello");
+                subscriber.onNext("Hi");
+                subscriber.onNext("Aloha");
+                subscriber.onCompleted();
+            }
+        });
+        //关联订阅
+        //订阅观察者的事件
+        observable.subscribe(observer);
+        //直接订阅事件
+        observable.subscribe(subscriber);
+    }
+
+    /**
+     * 原理
+     */
+    public void method1() {
+        //创建 Observable--被观察者 对象
+        Observable<String> observable = Observable.create(new Observable.OnSubscribe<String>() {
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                subscriber.onNext("Hello world RxJava");
+                subscriber.onCompleted();
+            }
+        });
+        //订阅内容
+        Subscriber subscriber = new Subscriber() {
+            @Override
+            public void onCompleted() {
+
+            }
+
+            @Override
+            public void onError(Throwable e) {
+
+            }
+
+            @Override
+            public void onNext(Object o) {
+                te.setText(o.toString());
+            }
+        };
+        //将Observable和Subscriber相关联，即完成subscriber和observable的订阅
+        observable.subscribe(subscriber);
+    }
+
+    /**
+     * 原理
+     */
+    public void method2() {
+        //被观察者
+        Observable<String> observable = Observable.just("简化 RXJAVA");
+        //订阅
+        Action1<String> onNextAction = new Action1<String>() {
+            @Override
+            public void call(String s) {
+                te.setText(s);
+            }
+        };
+        //关联
+        observable.subscribe(onNextAction);
+    }
+
+    /**
+     * 正常写法
+     */
+    public void method3() {
+        Observable.just("更简化 De RxJava").subscribe(new Action1<String>() {
+            @Override
+            public void call(String s) {
+                te.setText(s);
+            }
+        });
+    }
+}

app/src/main/java/com/yexue/android/rrxjava/MapActivity.java

@@ -0,0 +1,68 @@
+package com.yexue.android.rrxjava;
+
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.widget.TextView;
+
+import rx.Observable;
+import rx.functions.Action1;
+import rx.functions.Func1;
+
+public class MapActivity extends AppCompatActivity {
+    TextView rxmap;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_map);
+        rxmap = (TextView) findViewById(R.id.rxmap);
+        method2();
+       
+    }
+
+    /**
+     * Observable可以进行数据查询，Subscriber用来显示结果；
+     *
+     * Observable是屏幕上的点击事件，Subscriber用来响应事件；
+     *
+     * Observable可以是网络请求，Subscriber用来显示请求结果。
+     *
+     */
+    public void method1(){
+        Observable.just("RxJava Map").map(new Func1<String, String>() {
+
+            @Override
+            public String call(String str) {
+                return str + "map后缀";
+            }
+        }).subscribe(new Action1<String>() {
+            @Override
+            public void call(String s) {
+                rxmap.setText(s);
+            }
+        });
+    }
+    public void method2(){
+        Observable.just("map").map(new Func1<String, Integer>() {
+            @Override
+            public Integer call(String s) {
+                return s.hashCode();
+            }
+        }).map(new Func1<Integer, String>() {
+            @Override
+            public String call(Integer integer) {
+                return integer.toString()+"->2th";
+            }
+        }).subscribe(new Action1<String>() {
+            @Override
+            public void call(String s) {
+                rxmap.setText(s);
+            }
+        });
+    }
+
+}

app/src/main/java/com/yexue/android/rrxjava/TestActivity.java

@@ -0,0 +1,114 @@
+package com.yexue.android.rrxjava;
+
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.annotation.RequiresApi;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import rx.Observable;
+import rx.Observer;
+import rx.Subscriber;
+import rx.functions.Action1;
+
+public class TestActivity extends AppCompatActivity {
+    private static String log = "TestActivity";
+
+    @BindView(R.id.p1_btn)
+    Button p1Btn;
+    @BindView(R.id.p1_tv)
+    TextView p1Tv;
+    @BindView(R.id.p1_btn_c)
+    Button p1BtnC;
+    @BindView(R.id.p2_btn)
+    Button p2Btn;
+    @BindView(R.id.p2_btn_c)
+    Button p2BtnC;
+    @BindView(R.id.p2_img)
+    ImageView p2Img;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_test);
+        ButterKnife.bind(this);
+        p1Btn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                method1();
+            }
+        });
+        p1BtnC.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                p1Tv.setText("");
+            }
+        });
+    }
+
+    /**
+     * 将字符串数组 names 中的所有字符串依次打印出来：
+     */
+    private void method1() {
+        String[] names = {"张三", "lisi", "王麻子"};
+        Observable.from(names).subscribe(new Action1<String>() {
+            @Override
+            public void call(String s) {
+                String oldStr = p1Tv.getText().toString();
+                p1Tv.setText(oldStr + "\n" + s);
+            }
+        });
+    }
+
+    @OnClick({R.id.p2_btn, R.id.p2_btn_c})
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.p2_btn:
+                method2(R.mipmap.a);
+                break;
+            case R.id.p2_btn_c:
+                method2(0);
+                break;
+        }
+    }
+
+    private void method2(int a) {
+        final int drawableRes = a;//-->改个没有的就会激发onError();
+        Observable.create(new Observable.OnSubscribe<Drawable>() {
+            @Override
+            public void call(Subscriber<? super Drawable> subscriber) {
+                Drawable drawable = null;
+                drawable = ContextCompat.getDrawable(TestActivity.this, drawableRes);
+                subscriber.onNext(drawable);
+                subscriber.onCompleted();
+            }
+        }).subscribe(new Observer<Drawable>() {
+            @Override
+            public void onCompleted() {
+                Log.d(log, "onCompleted");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                e.printStackTrace();
+                Log.d(log, e.getStackTrace().toString());
+                Toast.makeText(TestActivity.this, "Error!", Toast.LENGTH_SHORT).show();
+            }
+
+            @Override
+            public void onNext(Drawable drawable) {
+                p2Img.setImageDrawable(drawable);
+            }
+        });
+    }
+}

app/src/main/java/com/yexue/android/rrxjava/utils/HttpConn.java

@@ -0,0 +1,61 @@
+package com.yexue.android.rrxjava.utils;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Handler;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+/**
+ * Created by admin on 2017/7/6.
+ */
+
+public class HttpConn extends Thread {
+    String picStr;
+    CallBack callBack;
+    private Handler handler;
+
+    public HttpConn(String picStr, Handler handler, CallBack callBack) {
+        this.picStr = picStr;
+        this.callBack = callBack;
+        this.handler = handler;
+    }
+
+    @Override
+    public void run() {
+        URL imgUrl = null;
+        try {
+            imgUrl = new URL(picStr);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+        try {
+            /*取得联机*/
+            HttpURLConnection conn = (HttpURLConnection) imgUrl.openConnection();
+            conn.connect();
+            /*取得回传的InputStream*/
+            InputStream is = conn.getInputStream();
+            /*将InputStream转化为Bitmap*/
+            final Bitmap bitmap = BitmapFactory.decodeStream(is);
+            //用Handler post()方法通知主线程
+            handler.post(new Runnable() {
+                @Override
+                public void run() {
+                    callBack.onCompleted(bitmap);
+                }
+            });
+             /*关闭InputStream*/
+            is.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public interface CallBack {
+        public void onCompleted(Bitmap bitmap);
+    }
+}

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

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context="com.yexue.android.rrxjava.ActionActivity">
+
+    <Button
+        android:id="@+id/action_btn1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="自动创建 Subscriber ，并使用 onNextAction 来定义 onNext()" />
+
+    <Button
+        android:id="@+id/action_btn2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="自动创建 Subscriber ，并使用 onNextAction 和 onErrorAction 来定义 onNext() 和 onError()" />
+
+    <Button
+        android:id="@+id/action_btn3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="自动创建 Subscriber ，并使用 onNextAction、 onErrorAction 和 onCompletedAction 来定义 onNext()、 onError() 和 onCompleted()" />
+</LinearLayout>

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

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout 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="com.yexue.android.rrxjava.HttpActivity">
+
+    <ImageView
+        android:id="@+id/img"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:scaleType="centerCrop" />
+
+    <Button
+        android:id="@+id/img_btn"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="获取图片" />
+</android.support.constraint.ConstraintLayout>

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

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context="com.yexue.android.rrxjava.MainActivity">
+
+    <TextView
+        android:id="@+id/te"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/toMap"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="RxJava map" />
+
+    <Button
+        android:id="@+id/toHttp"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="访问网络" />
+    <Button
+        android:id="@+id/btn3"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="btn3" />
+    <Button
+        android:id="@+id/btn4"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="btn4" />
+    <Button
+        android:id="@+id/btn5"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="btn5" />
+    <Button
+        android:id="@+id/btn6"
+        android:layout_width="200dp"
+        android:layout_height="50dp"
+        android:text="btn6" />
+
+</LinearLayout>

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

@@ -0,0 +1,15 @@
+<?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="com.yexue.android.rrxjava.MapActivity">
+
+    <TextView
+        android:id="@+id/rxmap"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="map" />
+
+</android.support.design.widget.CoordinatorLayout>

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

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context="com.yexue.android.rrxjava.TestActivity">
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_toLeftOf="@+id/p1_btn_c"
+                android:layout_toStartOf="@+id/p1_btn_c"
+                android:text="将字符串数组 names 中的所有字符串依次打印出来：" />
+
+            <Button
+                android:id="@+id/p1_btn"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentEnd="true"
+                android:layout_alignParentRight="true"
+                android:layout_alignParentTop="true"
+                android:text="go" />
+
+            <Button
+                android:id="@+id/p1_btn_c"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentTop="true"
+                android:layout_toLeftOf="@+id/p1_btn"
+                android:layout_toStartOf="@+id/p1_btn"
+                android:text="clean" />
+        </RelativeLayout>
+
+        <TextView
+            android:id="@+id/p1_tv"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_toLeftOf="@+id/p2_btn_c"
+                android:layout_toStartOf="@+id/p2_btn_c"
+                android:text="由指定的一个 drawable 文件 id drawableRes 取得图片，并显示在 ImageView 中，并在出现异常的时候打印 Toast 报错：" />
+
+            <Button
+                android:id="@+id/p2_btn"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentEnd="true"
+                android:layout_alignParentRight="true"
+                android:layout_alignParentTop="true"
+                android:text="onCompleted" />
+
+            <Button
+                android:id="@+id/p2_btn_c"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentTop="true"
+                android:layout_toLeftOf="@+id/p2_btn"
+                android:layout_toStartOf="@+id/p2_btn"
+                android:text="onError" />
+        </RelativeLayout>
+
+        <ImageView
+            android:id="@+id/p2_img"
+            android:layout_width="100dp"
+            android:layout_height="100dp" />
+    </LinearLayout>
+
+</LinearLayout>

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout 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"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior"
+    tools:context="com.yexue.android.rrxjava.MapActivity"
+    tools:showIn="@layout/activity_map">
+
+
+
+</android.support.constraint.ConstraintLayout>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

app/src/main/res/values/dimens.xml

@@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">rrxjava</string>
+    <string name="title_activity_map">MapActivity</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,20 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>

app/src/test/java/com/yexue/android/rrxjava/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.yexue.android.rrxjava;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}