Test

RCHelper/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

RCHelper/app/.gitignore

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+/build

RCHelper/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.2"
+    defaultConfig {
+        applicationId "com.example.ron_wang.rchelper"
+        minSdkVersion 17
+        targetSdkVersion 25
+        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(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-v7:25.3.1'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    testCompile 'junit:junit:4.12'
+}

RCHelper/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\Ron-Wang\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

RCHelper/app/src/androidTest/java/com/example/ron_wang/rchelper/ExampleInstrumentedTest.java

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+package com.example.ron_wang.rchelper;
+
+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.example.ron_wang.rchelper", appContext.getPackageName());
+    }
+}

RCHelper/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.example.ron_wang.rchelper">
+
+    <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=".SingleActivity"
+            android:windowSoftInputMode="stateHidden|stateAlwaysHidden"></activity>
+        <activity android:name=".DoubleActivity"></activity>
+    </application>
+
+</manifest>

RCHelper/app/src/main/java/com/example/ron_wang/rchelper/DoubleActivity.java

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+package com.example.ron_wang.rchelper;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+public class DoubleActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_double);
+    }
+}

RCHelper/app/src/main/java/com/example/ron_wang/rchelper/MainActivity.java

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+package com.example.ron_wang.rchelper;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+public class MainActivity extends AppCompatActivity {
+    private Button btnSingle,btnDouble,btnT,btnPre,btnJ,btnSingleJ,btnDoubleJ,btnTJ,btnPreJ,btnTable;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        btnSingle = (Button)findViewById(R.id.btnSingle);
+        btnDouble = (Button)findViewById(R.id.btnDouble);
+        btnT = (Button)findViewById(R.id.btnT);
+        btnPre = (Button)findViewById(R.id.btnPre);
+        btnJ = (Button)findViewById(R.id.btnJ);
+        btnSingleJ = (Button)findViewById(R.id.btnSingleJ);
+        btnDoubleJ = (Button)findViewById(R.id.btnDoubleJ);
+        btnTJ = (Button)findViewById(R.id.btnTJ);
+        btnPreJ = (Button)findViewById(R.id.btnPreJ);
+        btnTable = (Button)findViewById(R.id.btnTable);
+
+        btnSingle.setOnClickListener(btnSingleOnclick);
+        btnDouble.setOnClickListener(btnDoubleOnclick);
+        btnT.setOnClickListener(btnDoubleOnclick);
+        btnPre.setOnClickListener(btnDoubleOnclick);
+        btnJ.setOnClickListener(btnDoubleOnclick);
+        btnSingleJ.setOnClickListener(btnDoubleOnclick);
+        btnDoubleJ.setOnClickListener(btnDoubleOnclick);
+        btnTJ.setOnClickListener(btnDoubleOnclick);
+        btnPreJ.setOnClickListener(btnDoubleOnclick);
+        btnTable.setOnClickListener(btnDoubleOnclick);
+    }
+    private View.OnClickListener btnSingleOnclick = new View.OnClickListener(){
+        @Override
+        public void onClick(View v){
+            Intent intent = new Intent(MainActivity.this,SingleActivity.class);
+            startActivity(intent);
+        }
+    };
+    private View.OnClickListener btnDoubleOnclick = new View.OnClickListener(){
+        @Override
+        public void onClick(View v){
+            Intent intent = new Intent(MainActivity.this,DoubleActivity.class);
+            startActivity(intent);
+        }
+    };
+}