use a material design

allows resetting the emulator

ACardEmulator/app/src/main/AndroidManifest.xml

@@ -13,8 +13,10 @@
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >
         <activity
-            android:name=".MainActivity"
-            android:label="@string/app_name" >
+            android:name="com.vsmartcard.acardemulator.MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar"
+            >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -25,10 +27,9 @@
         <activity
             android:name="com.vsmartcard.acardemulator.SettingsActivity"
             android:label="@string/action_settings" >
-        >
         </activity>
 
-        <service android:name=".SimulatorService"
+        <service android:name="com.vsmartcard.acardemulator.SimulatorService"
             android:exported="true"
             android:permission="android.permission.BIND_NFC_SERVICE">
             <intent-filter>

ACardEmulator/app/src/main/java/com/vsmartcard/acardemulator/MainActivity.java

@@ -29,20 +29,21 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
 import android.support.v4.content.LocalBroadcastManager;
-import android.support.v7.app.ActionBarActivity;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.widget.ScrollView;
 import android.widget.TextView;
 import android.widget.Toast;
 
 
-public class MainActivity extends ActionBarActivity {
+public class MainActivity extends AppCompatActivity {
 
     private TextView textViewVPCDStatus;
-    private ScrollView scrollView;
     private BroadcastReceiver bReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
@@ -60,7 +61,6 @@ public class MainActivity extends ActionBarActivity {
                     textViewVPCDStatus.append(getResources().getString(R.string.status_error) + ": " + error + "\n");
                 if (rapdu != null) {
                     textViewVPCDStatus.append(getResources().getString(R.string.status_rapdu) + ": " + rapdu + "\n");
-                    scrollView.fullScroll(View.FOCUS_DOWN);
                 }
                 if (deselect != null)
                     textViewVPCDStatus.append(getResources().getString(R.string.status_disconnected) + ": " + deselect + "\n");
@@ -88,9 +88,21 @@ public class MainActivity extends ActionBarActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
+        assert fab != null;
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, "Scheduled re-installation of all applets...", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+                SimulatorService.destroySimulator(getApplicationContext());
+            }
+        });
 
         textViewVPCDStatus = (TextView) findViewById(R.id.textViewLog);
-        scrollView = (ScrollView) findViewById(R.id.scrollView);
         SharedPreferences settings = getSharedPreferences(PREFS, 0);
         if (settings.getInt(PREF_LASTVERSION, 0) != BuildConfig.VERSION_CODE) {
             showStartupMessage();

ACardEmulator/app/src/main/java/com/vsmartcard/acardemulator/SettingsActivity.java

@@ -120,7 +120,7 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                     CharSequence aid = switchPreference.getSwitchTextOn();
                     preference.setSummary("Selectable with AID " + aid);
                 } else {
-                    preference.setSummary("Deactivated");
+                    preference.setSummary("Will not be installed");
                 }
             } else {
                 // For all other preferences, set the summary to the value's

ACardEmulator/app/src/main/java/com/vsmartcard/acardemulator/SimulatorService.java

@@ -19,6 +19,7 @@
 
 package com.vsmartcard.acardemulator;
 
+import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.nfc.cardemulation.HostApduService;
@@ -63,6 +64,7 @@ public class SimulatorService extends HostApduService {
     public static final String EXTRA_INSTALL = "MSG_INSTALL";
 
     private static Simulator simulator = null;
+    private static boolean do_destroy = false;
 
     private void createSimulator() {
         String aid, name, extra_install = "", extra_error = "";
@@ -148,6 +150,8 @@ public class SimulatorService extends HostApduService {
     @Override
     public void onCreate () {
         super.onCreate();
+        // force reloading applets if requested
+        do_destroy();
 
         Log.d("", "Begin transaction");
         if (useVPCD) {
@@ -170,6 +174,26 @@ public class SimulatorService extends HostApduService {
         }
     }
 
+    public static void destroySimulator(Context context) {
+        do_destroy = true;
+    }
+
+    private void do_destroy() {
+        if (do_destroy) {
+            simulator = null;
+            do_destroy = false;
+            Intent i = new Intent(TAG);
+            i.putExtra(EXTRA_DESELECT, "Uninstalled all applets.");
+            LocalBroadcastManager.getInstance(this).sendBroadcast(i);
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        do_destroy();
+        super.onDestroy();
+    }
+
     @Override
     public byte[] processCommandApdu(byte[] capdu, Bundle extras) {
         Intent i = new Intent(TAG);

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

@@ -1,21 +1,58 @@
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<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"
-    android:keepScreenOn="true"
-    android:orientation="vertical"
-    tools:context="com.vsmartcard.remotesmartcardreader.app.MainActivity">
+    android:fitsSystemWindows="true"
+    tools:context="com.vsmartcard.smartcardemulator.MainActivity">
 
-    <ScrollView
+    <android.support.design.widget.AppBarLayout
+        android:id="@+id/app_bar"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:id="@+id/scrollView">
-        <TextView
+        android:layout_height="@dimen/app_bar_height"
+        android:fitsSystemWindows="true"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <android.support.design.widget.CollapsingToolbarLayout
+            android:id="@+id/toolbar_layout"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:textAppearance="?android:attr/textAppearanceSmall"
-            android:id="@+id/textViewLog"
-            android:typeface="monospace" />
-    </ScrollView>
+            android:fitsSystemWindows="true"
+            app:contentScrim="?attr/colorPrimary"
+            app:layout_scrollFlags="scroll|exitUntilCollapsed">
 
-</LinearLayout>
+            <android.support.v7.widget.Toolbar
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                app:layout_collapseMode="pin"
+                app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+        </android.support.design.widget.CollapsingToolbarLayout>
+    </android.support.design.widget.AppBarLayout>
+
+    <android.support.v4.widget.NestedScrollView 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="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        tools:context="com.vsmartcard.remotesmartcardreader.app.MainActivity"
+        tools:showIn="@layout/activity_main">
+        <TextView
+            android:layout_margin="@dimen/text_margin"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:id="@+id/textViewLog" />
+    </android.support.v4.widget.NestedScrollView>
+
+    <android.support.design.widget.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="@dimen/fab_margin"
+        android:src="@mipmap/ic_reset"
+        app:layout_anchor="@id/app_bar"
+        app:layout_anchorGravity="bottom|end" />
+
+</android.support.design.widget.CoordinatorLayout>

ACardEmulator/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">#fdd017</color>
+</resources>

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

@@ -1,6 +1,5 @@
 <resources>
-    <!-- Default screen margins, per the Android Design guidelines. -->
-    <dimen name="activity_horizontal_margin">16dp</dimen>
-    <dimen name="activity_vertical_margin">16dp</dimen>
-
-    </resources>
+    <dimen name="app_bar_height">180dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+    <dimen name="text_margin">16dp</dimen>
+</resources>

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

@@ -3,6 +3,18 @@
     <!-- 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>