AlarmManager

BootService.java

package ubi.app.services;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

import ubi.app.Configuracao;

/**
 * Created by thiago.domacoski on 16/01/17.
 */

public class BootService extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Configuracao.configurar(context);
    }
}

Configuracao.java

package ubi.app;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

import java.text.SimpleDateFormat;
import java.util.Calendar;

import ubi.app.services.ReceptorAlarme;
import ubi.app.sharedpreferences.Horario;
import ubi.app.sharedpreferences.SharedPreferencesModel;

/**
 * Created by thiago.domacoski on 16/01/17.
 */

public class Configuracao {

    public static void configurar(final Context mContext){
        if(null == mContext){
            return;
        }
        final AlarmManager alarmManager = AlarmManager.class.cast(mContext.getSystemService(Context.ALARM_SERVICE));
        final Horario horario = new SharedPreferencesModel<Horario>().load(Horario.class, mContext);
        if(!horario.getAtivo()){
            alarmManager.cancel(getPendingIntent(mContext));
        }else {
            Calendar calendar = Calendar.getInstance();
            calendar.set(Calendar.HOUR_OF_DAY, horario.getHora());
            calendar.set(Calendar.MINUTE, horario.getMinuto());
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);
            if(calendar.getTimeInMillis() < System.currentTimeMillis()){
                calendar.set(Calendar.DAY_OF_YEAR, (calendar.get(Calendar.DAY_OF_YEAR)));
            }
            final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm:ss dd/MM/yy");
            Toast.makeText(mContext, simpleDateFormat.format(calendar.getTimeInMillis()), Toast.LENGTH_SHORT).show();

            alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, getPendingIntent(mContext));
        }
    }



    private static PendingIntent getPendingIntent(final Context mContext){
        final Intent intent = new Intent(mContext, ReceptorAlarme.class);
        return PendingIntent.getBroadcast(mContext, 0, intent, 0);
    }
}

manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="ubi.app">

    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <uses-permission android:name="android.permission.INTERNET" />

    <!-- To auto-complete the email text field in the login form with the user's emails -->
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.READ_PROFILE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />

    <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>

        <receiver
            android:name=".services.BootService"
            android:exported="false"
            android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <receiver android:name=".services.ReceptorAlarme" />

        <activity
            android:name=".LoginActivity"
            android:label="@string/title_activity_login"></activity>
    </application>

</manifest>

ReceptorAlarme.java

package ubi.app.services;

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.support.v4.app.NotificationCompat;

import ubi.app.MainActivity;
import ubi.app.R;

/**
 * Created by thiago.domacoski on 16/01/17.
 */

public class ReceptorAlarme extends BroadcastReceiver{

    public static final int FLAG_NOTIFICATION = 92346;
    @Override
    public void onReceive(Context context, Intent intent) {

        final Intent i = new Intent(context, MainActivity.class);
        i.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);

        final PendingIntent pendingIntent = PendingIntent.getActivity(context, 99, i, PendingIntent.FLAG_UPDATE_CURRENT);
        final NotificationManager mNotification = NotificationManager.class.cast(context.getSystemService(Context.NOTIFICATION_SERVICE));

        final NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
        builder.setAutoCancel(true);
        builder.setSmallIcon(R.drawable.ic_stat_name);
        builder.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher));

        builder.setContentTitle("Título da notificação");
        builder.setContentText("Descrição da Notificação que aberta! ");

        builder.setContentIntent(pendingIntent);

        builder.setVibrate(new long[]{500, 500, 500, 500});

//        NotificationCompat.WearableExtender wearableExtender = new NotificationCompat.WearableExtender()
//                .setBackground(BitmapFactory.decodeResource(getResources(), R.drawable.ic_notif_trip_processed))
//                .setHintHideIcon(true);
//        builder.extend(wearableExtender);

        mNotification.notify(FLAG_NOTIFICATION, builder.build());
    }

}