first commit

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.2"
+
+    defaultConfig {
+        applicationId "it.trenitalia.feedbackmanutentivi"
+        minSdkVersion 14
+        targetSdkVersion 23
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+
+    compile 'com.android.volley:volley:1.0.0'
+}

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 F:\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 *;
+#}

app/src/androidTest/java/com/majin/officedoor/ExampleInstrumentedTest.java

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+package com.majin.officedoor;
+
+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.majin.officedoor", 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"
+    package="com.majin.officedoor">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        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>
+
+        <receiver
+            android:icon="@drawable/preview"
+            android:label="Office Widget"
+            android:name="com.majin.officedoor.SimpleWidgetProvider" >
+            <intent-filter >
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/simple_widget_info" />
+        </receiver>
+    </application>
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+</manifest>

app/src/main/java/com/majin/officedoor/MainActivity.java

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+package com.majin.officedoor;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.View;
+import android.widget.ImageButton;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.android.volley.Request;
+import com.android.volley.RequestQueue;
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.StringRequest;
+import com.android.volley.toolbox.Volley;
+
+public class MainActivity extends Activity {
+
+    private TextView resultText;
+    private ProgressBar progressBar;
+    private ImageButton mainButton;
+
+    private boolean enableButton;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        enableButton = true;
+
+        resultText = (TextView) findViewById(R.id.main_text_result);
+
+        progressBar  = (ProgressBar) findViewById(R.id.main_progress_bar);
+        progressBar.setIndeterminate(true);
+
+        mainButton = (ImageButton) findViewById(R.id.main_open_button);
+
+        stopRequest();
+        mainButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startRequest();
+                if (enableButton)
+                    callSimpleServer();
+            }
+        });
+    }
+
+    private void callSimpleServer() {
+
+        RequestQueue queue = Volley.newRequestQueue(this);
+        String url = Registry.URL;
+        enableButton = false;
+
+        StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
+                new Response.Listener<String>() {
+                    @Override
+                    public void onResponse(String response) {
+                        // Display the first 500 characters of the response string.
+
+                        stopRequest();
+                        if (response != null && response.contains("open")) {
+                            mainButton.setImageResource(R.drawable.open_green);
+                            resultText.setText("Door opened");
+                        } else {
+                            mainButton.setImageResource(R.drawable.open_red);
+                            resultText.setText("Door closed");
+                        }
+
+                        final Handler handler = new Handler();
+                        handler.postDelayed(new Runnable() {
+                            @Override
+                            public void run() {
+                                mainButton.setImageResource(R.drawable.open);
+
+                            }
+                        }, 4000);
+
+                    }
+                }, new Response.ErrorListener() {
+            @Override
+            public void onErrorResponse(VolleyError error) {
+                resultText.setText("That didn't work!");
+                stopRequest();
+                mainButton.setImageResource(R.drawable.open_red);
+            }
+        });
+// Add the request to the RequestQueue.
+        queue.add(stringRequest);
+    }
+
+    private void startRequest() {
+        resultText.setVisibility(View.VISIBLE);
+
+        mainButton.setVisibility(View.INVISIBLE);
+        progressBar.setVisibility(View.VISIBLE);
+    }
+
+    private void stopRequest() {
+        mainButton.setVisibility(View.VISIBLE);
+        progressBar.setVisibility(View.INVISIBLE);
+        enableButton = true;
+    }
+}

app/src/main/java/com/majin/officedoor/Registry.java

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+package com.majin.officedoor;
+
+/**
+ * Created by Majin on 26/02/2017.
+ */
+
+public class Registry {
+
+    private static Registry instance;
+
+    public static String URL = "http://10.0.2.76?on?json";
+
+    private boolean buttonEnabled = true;
+
+    public static void initInstance()
+    {
+        if (instance == null)
+        {
+            // Create the instance
+            instance = new Registry();
+        }
+    }
+
+    public static Registry getInstance()
+    {
+        // Return the instance
+        initInstance();
+        return instance;
+    }
+
+    private Registry()
+    {
+        // Constructor hidden because this is a singleton
+    }
+
+    public boolean isButtonEnabled() {
+        return buttonEnabled;
+    }
+
+    public void setButtonEnabled(boolean buttonEnabled) {
+        this.buttonEnabled = buttonEnabled;
+    }
+}

app/src/main/java/com/majin/officedoor/SimpleWidgetProvider.java

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+package com.majin.officedoor;
+
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Handler;
+import android.view.View;
+import android.widget.RemoteViews;
+
+import com.android.volley.Request;
+import com.android.volley.RequestQueue;
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.StringRequest;
+import com.android.volley.toolbox.Volley;
+
+/**
+ * Created by Majin on 26/02/2017.
+ */
+
+public class SimpleWidgetProvider extends AppWidgetProvider {
+
+    private RemoteViews remoteViews;
+
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        final int count = appWidgetIds.length;
+        for (int i = 0; i < count; i++) {
+            int widgetId = appWidgetIds[i];
+
+            remoteViews  = new RemoteViews(context.getPackageName(),
+                    R.layout.widget);
+
+            remoteViews.setViewVisibility(R.id.main_progress_bar_widget, View.INVISIBLE);
+            if (Registry.getInstance().isButtonEnabled()) {
+                callService(context);
+            }
+            Intent intent = new Intent(context, SimpleWidgetProvider.class);
+            intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
+            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);
+            PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
+                    0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+            remoteViews.setOnClickPendingIntent(R.id.actionButton, pendingIntent);
+            appWidgetManager.updateAppWidget(widgetId, remoteViews);
+        }
+    }
+
+    private void callService(final Context context) {
+        RequestQueue queue = Volley.newRequestQueue(context);
+        String url = Registry.URL;
+
+        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
+        RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
+        ComponentName thisWidget = new ComponentName(context, SimpleWidgetProvider.class);
+        remoteViews.setViewVisibility(R.id.main_progress_bar_widget, View.VISIBLE);
+
+// Request a string response from the provided URL.
+        StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
+                new Response.Listener<String>() {
+                    @Override
+                    public void onResponse(String response) {
+                        // Display the first 500 characters of the response string.
+                        callIntent(context, response);
+
+                        Registry.getInstance().setButtonEnabled(false);
+
+                        final Handler handler = new Handler();
+                        handler.postDelayed(new Runnable() {
+                            @Override
+                            public void run() {
+                                callIntent(context, "!");
+                                Registry.getInstance().setButtonEnabled(true);
+                            }
+                        },4000);
+
+                    }
+                }, new Response.ErrorListener() {
+            @Override
+            public void onErrorResponse(VolleyError error) {
+                callIntent(context, "KO");
+            }
+        });
+        queue.add(stringRequest);
+    }
+
+    private void callIntent(Context context, String value) {
+
+        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
+        RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
+        ComponentName thisWidget = new ComponentName(context, SimpleWidgetProvider.class);
+
+        remoteViews.setViewVisibility(R.id.main_progress_bar_widget, View.INVISIBLE);
+
+        if (value.equalsIgnoreCase("!"))
+            remoteViews.setImageViewResource(R.id.actionButton, R.drawable.open);
+        else if (value.equalsIgnoreCase("OK") || value.contains("open"))
+            remoteViews.setImageViewResource(R.id.actionButton, R.drawable.open_green);
+        else if (value.equalsIgnoreCase("KO") || value.contains("close"))
+            remoteViews.setImageViewResource(R.id.actionButton, R.drawable.open_red);
+
+        appWidgetManager.updateAppWidget(thisWidget, remoteViews);
+
+    }
+
+}