Eu tenho um aplicativo e decidi adicionar um widget a ele, segui toda a documentação oficial dele, mas quando instalo o aplicativo no meu Galaxy Nexus, o widget não aparece na lista de aplicativos / widgets.

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.dysign.livetubecountdown"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="16" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <activity
        android:name="com.dysign.livetubecountdown.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <receiver android:name="com.dysign.livetubecountdown.Widget" android:label="@string/app_name" android:icon="@drawable/ic_launcher">
        <intent-filter>
            <action android:name="android.appwidget,action.APPWIDGET_UPDATE" />
        </intent-filter>
        <meta-data android:name="android.appwidget.provider" android:resource="@xml/widget_provider" />
    </receiver>

</application>

widget_provider.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
                    android:minHeight="80dp"
                    android:minWidth="80dp"
                    android:minResizeHeight="40dp"
                    android:minResizeWidth="40dp"
                    android:updatePeriodMillis="86400000"
                    android:initialLayout="@layout/widget_main"
                    android:previewImage="@drawable/ic_launcher"
                    android:widgetCategory="home_screen"
                    android:resizeMode="horizontal|vertical">
</appwidget-provider>

widget_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:text="Large Text"
            android:id="@+id/widgetTextView"/>
</FrameLayout>

Widget.java

package com.dysign.livetubecountdown;

import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.widget.RemoteViews;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.Timer;
import java.util.TimerTask;

public class Widget extends AppWidgetProvider {

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerClass(context, appWidgetManager), 1, 1000);
    }

    private class TimerClass extends TimerTask {
        RemoteViews remoteViews;
        AppWidgetManager appWidgetManager;
        ComponentName thisWidget;
        DateFormat format = SimpleDateFormat.getTimeInstance(SimpleDateFormat.MEDIUM, Locale.getDefault());

        public TimerClass(Context context, AppWidgetManager appWidgetManager) {
            this.appWidgetManager = appWidgetManager;
            remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);
            thisWidget = new ComponentName(context, Widget.class);
        }

        @Override
        public void run() {
            remoteViews.setTextViewText(R.id.widgetTextView, "TIME = " +format.format(new Date()));
            appWidgetManager.updateAppWidget(thisWidget, remoteViews);
        }
    }
}

Eu tenho procurado por toda a web para tentar consertar isso, mas cada sugestão que eu tento simplesmente não funciona. Também não há erros no LogCat ou qualquer menção de qualquer coisa relacionada ao widget.

Qualquer ajuda é muito apreciada, obrigado!