theyann

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    WidgetEntryDao dao = new WidgetEntryDao(new DbHelper(context));

    final int N = appWidgetIds.length;

    // Perform this loop procedure for each App Widget that belongs to this provider
    for (int i = 0; i < N; i++) {
        int appWidgetId = appWidgetIds[i];

theyann

// creating the intent with all the information we want to pre-fill
Intent intent = new Intent(Intent.ACTION_SEND);
// array of destination email addresses
intent.putExtra(Intent.EXTRA_EMAIL, new String[] { "email1@company.com", "email2@othercompany.com" }); 
intent.putExtra(Intent.EXTRA_SUBJECT, "my subject");
intent.putExtra(Intent.EXTRA_TEXT, "some message body");
// This type narrows down the amount of apps that will be displayed in the app choice dialog
intent.setType("message/rfc822"); // it should be mostly email apps

theyann

@Override
public void onDeleted(Context context, int[] appWidgetIds) {
  super.onDeleted(context, appWidgetIds);

  WidgetEntryDao dao = new WidgetEntryDao(new DbHelper(context));
  final int N = appWidgetIds.length;

  for (int i = 0; i < N; i++) {
    dao.deleteByWidgetId(appWidgetIds[i]);
  }

theyann

package X.Y.Z;

import android.content.SharedPreferences;

/**
 * Created by ylemin on 21/11/15.
 *
 * This class is a bunch of recurring methods used when dealing with SharedPreferences.
 * It is intended to be a base class which receives the SharedPreferences instance from the child class.
 * There should only be one instance of SharedPreferences per app.

theyann

package X.Y.Z;

import android.text.TextUtils;
import android.util.Base64;

 /**
 * Created by ylemin on 07/09/15.
 *
 * This class is similar in functionalities as the commons.lang.StringUtils, but using as much
 * of the Android built-in tools and helpers as possible

theyann

package YOUR_PACKAGE;

import android.content.Context;
import android.os.Build;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.cert.Certificate;