Delete file after sent email attachment

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Create class

package es.my.package;

import java.io.File;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

/**
 * Clase que recibirá la llamada cuando sea neceario eliminar un fichero,
 * @author postNuKe
 *
 */
public class AlarmDeleteFileReceiver extends BroadcastReceiver {
       
        private static final String EXTRA_FILENAME = "es.my.package.extras.filename";

   public AlarmDeleteFileReceiver(){

   }

   /**
    * Inicializamos los datos para realizar la llamada
    * @param context
    * @param long fecha en milisegundos cuando se ejecutará el delete del fichero
    * System.currentTimeMillis() + 1000 * 60, //1 minuto
    * @param filename path hasta el fichero a eliminar en un determinado tiempo
    */
   public AlarmDeleteFileReceiver(Context context, long timeMillis, String filename) {
      AlarmManager am = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
      Intent intent = new Intent(context, AlarmDeleteFileReceiver.class);
      intent.putExtra(EXTRA_FILENAME, filename);
      PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
      am.set(AlarmManager.RTC_WAKEUP, timeMillis, pi);
   }

   @Override
   public void onReceive(Context context, Intent intent) {
      Bundle extras = intent.getExtras();
      if(extras != null){
         String filename = extras.getString(EXTRA_FILENAME);
         if(!filename.equals("")){
            File file = new File(filename);
            if(file.exists()){
               boolean success = file.delete();
               if (success) {
                  //Toast.makeText(context, "SE HA BORRADO", Toast.LENGTH_LONG).show();
               }
            }
         }
      }
   }
}


Add on the Manifest.xml

        <receiver
            android:name="es.my.package.AlarmDeleteFileReceiver"
            android:enabled="true"
            android:exported="true" >
        </receiver>
</application>


Call the class constructor:

AlarmDeleteFileReceiver alarm = new AlarmDeleteFileReceiver(
                this.getApplicationContext(), 
                System.currentTimeMillis() + 1000 * 60, //1 minuto
                DatabaseAssistant.EXPORT_FILE_NAME);