diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..aa724b7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..fb7f4a8
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
new file mode 100644
index 0000000..a2d7c21
--- /dev/null
+++ b/.idea/gradle.xml
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..575a6e6
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,18 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..288b36b
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..f458f8d
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,48 @@
+plugins {
+ id 'com.android.application'
+}
+
+android {
+ compileSdk 32
+
+ defaultConfig {
+ applicationId "com.example.miniandroidapp13_websocket02"
+ minSdk 30
+ targetSdk 32
+ versionCode 1
+ versionName "1.0"
+
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+}
+
+dependencies {
+
+ implementation 'androidx.appcompat:appcompat:1.5.1'
+ implementation 'com.google.android.material:material:1.7.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+ testImplementation 'junit:junit:4.13.2'
+ androidTestImplementation 'androidx.test.ext:junit:1.1.4'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
+
+ // 追加
+ implementation 'com.squareup.okhttp3:okhttp:4.9.1'
+ implementation 'javax.websocket:javax.websocket-api:1.1'
+
+ // JSONを使うjackson
+ implementation group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.13.0'
+ implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.13.0'
+ implementation group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.13.0'
+
+}
\ No newline at end of file
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# 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
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/example/miniandroidapp13_websocket02/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/miniandroidapp13_websocket02/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..e613d63
--- /dev/null
+++ b/app/src/androidTest/java/com/example/miniandroidapp13_websocket02/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.example.miniandroidapp13_websocket02;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+ assertEquals("com.example.miniandroidapp13_websocket02", appContext.getPackageName());
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..f9b818c
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,31 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/java/com/example/miniandroidapp13_websocket02/MainActivity.java b/app/src/main/java/com/example/miniandroidapp13_websocket02/MainActivity.java
new file mode 100644
index 0000000..7c6ec63
--- /dev/null
+++ b/app/src/main/java/com/example/miniandroidapp13_websocket02/MainActivity.java
@@ -0,0 +1,50 @@
+package com.example.miniandroidapp13_websocket02;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.lifecycle.ViewModelProvider;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.example.miniandroidapp13_websocket02.viewmodels.MainViewModel;
+
+public class MainActivity extends AppCompatActivity {
+
+ private MainViewModel mainViewModel;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ TextView textView = (TextView) findViewById(R.id.textView);
+ Button button_left = (Button) findViewById(R.id.button_left);
+ Button button_center = (Button) findViewById(R.id.button_center);
+ Button button_right = (Button) findViewById(R.id.button_right);
+ button_left.setOnClickListener(this::onClick);
+ button_center.setOnClickListener(this::onClick);
+ button_right.setOnClickListener(this::onClick);
+ textView.setText("未接続");
+
+ mainViewModel = new ViewModelProvider(this).get(MainViewModel.class);
+ mainViewModel.getTextLiveData().observe (
+ this,
+ textObserver -> {
+ textView.setText(textObserver);
+ }
+ );
+ }
+
+ public void onClick(View v) {
+ if (v.getId() == R.id.button_left) {
+ mainViewModel.openWebSocket();
+ } else if (v.getId() == R.id.button_center) {
+ mainViewModel.closeWebSocket();
+ } else if (v.getId() == R.id.button_right) {
+ mainViewModel.sendMessageWebSocket("Hello from Android");
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/miniandroidapp13_websocket02/viewmodels/MainViewModel.java b/app/src/main/java/com/example/miniandroidapp13_websocket02/viewmodels/MainViewModel.java
new file mode 100644
index 0000000..8091f17
--- /dev/null
+++ b/app/src/main/java/com/example/miniandroidapp13_websocket02/viewmodels/MainViewModel.java
@@ -0,0 +1,134 @@
+package com.example.miniandroidapp13_websocket02.viewmodels;
+
+import android.os.Handler;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import okhttp3.WebSocket;
+import okhttp3.WebSocketListener;
+import okio.ByteString;
+
+public class MainViewModel extends ViewModel {
+
+ private WebSocketClient webSocketClient;
+
+ //ライブデータ
+ private MutableLiveData textLiveData;
+
+ // コンストラクタ
+ public MainViewModel() {
+ this.textLiveData = new MutableLiveData<>();
+ this.textLiveData.setValue("テキスト");
+ webSocketClient = new WebSocketClient();
+ }
+
+ //-----------------------------------------------------------------------------
+ // getter
+ public LiveData getTextLiveData() {
+ return this.textLiveData;
+ }
+
+ //setter
+ public void sendMessageWebSocket(String message) {
+ webSocketClient.sendMessage(message);
+ }
+
+ public void closeWebSocket() {
+ //第1引数(code)には、1000、または3000〜4000の整数を指定
+ //第2引数(reason)には、切断理由を表す文字列を指定
+ webSocketClient.webSocket.close(1000,"切断のボタンを押した");
+ }
+
+ public void openWebSocket() {
+ webSocketClient = new WebSocketClient();
+ }
+ //-----------------------------------------------------------------------------
+
+
+ /*
+ WebSocketに関わる内部クラス
+ */
+ public class WebSocketClient extends WebSocketListener {
+
+ private WebSocket webSocket;
+ private Handler mHandler = new Handler();
+
+ // 外部クラスのLiveDateにアクセスする
+ private void setTextLiveData(String message) {
+ // UIスレッドにしないと動かない...
+ mHandler.post(new Runnable() {
+ public void run() {
+ // UIの操作
+ textLiveData.setValue(message);
+ }
+ });
+ }
+
+ public WebSocketClient() {
+ OkHttpClient client = new OkHttpClient();
+
+ Request.Builder request = new Request.Builder();
+
+ // 接続先のURLを指定。
+ // 今回は３つ種類のサーバーURLをサンプルで用意しているので、どれか１つをコメントアウト外して使う。
+ // エミュレータから実行するために、ここではlocalhostとか127.0.0.1ではないことに注意
+
+ // ● サンプル１シンプルなWebSocketのサンプル
+ request.url("ws://10.0.2.2:8080/demo/WebSocketDemo");
+
+ // ● パスパラメータを付与できるサンプル
+ // request.url("ws://10.0.2.2:8080/demo/WebSocketDemoPathParam/kokowa-nanidemo-ok");
+
+ // ● サーバーでエンコードしたJSONが返ってくるサンプル
+ //request.url("ws://10.0.2.2:8080/demo/WebSocketDemoJSON");
+
+ webSocket = client.newWebSocket(request.build(), this);
+ }
+
+ //-----------------------------------------------------------------------------
+ //setter
+ public void sendMessage(String message) {
+ System.out.println("kota: メッセージを送信："+message);
+ webSocket.send(message);
+ }
+ //-----------------------------------------------------------------------------
+
+
+ @Override
+ public void onOpen(WebSocket webSocket, Response response) {
+ this.setTextLiveData("接続完了");
+ System.out.println("kota: WebSocketの接続成功");
+ }
+
+ @Override
+ public void onMessage(WebSocket webSocket, String text) {
+ this.setTextLiveData("接続中"+text);
+ System.out.println("kota: メッセージを受け取りました：" + text);
+ }
+
+ @Override
+ public void onMessage(WebSocket webSocket, ByteString bytes) {
+ this.setTextLiveData("接続中"+bytes.hex());
+ System.out.println("kota: メッセージを受け取りました：" + bytes.hex());
+ }
+
+ @Override
+ public void onClosing(WebSocket webSocket, int code, String reason) {
+ webSocket.close(1000, null);
+ this.setTextLiveData("切断しました");
+ System.out.println("kota: WebSocketが切断されました：" + code + reason);
+ }
+
+ @Override
+ public void onFailure(WebSocket webSocket, Throwable t, Response response) {
+ this.setTextLiveData("接続失敗");
+ System.out.println("kota: WebSocketの接続が失敗しました："+ t.getLocalizedMessage());
+ }
+ }
+
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+
+
+
+
+