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NAME    | Density |  Pixels     | 1/2 Square | 16:9 Image | Map Marker |
ldpi    |   0.5   |  180 x  320 |            |  
mdpi    |    1    |  360 x  640 | 180x180    | 360 x 202  |  32
hdpi    |   1.5   |  540 x  960 | 270x270    | 540 x 304  |  48
xhdpi   |    2    |  720 x 1280 | 360x360    | 720 x 405  |  64
xxhdpi  |    3    | 1080 x 1920 | 540x540    | 1080 x 608 |  96
xxxhdpi |    4    | 1440 x 2560 |            | 1440 x 810 |

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grep -rl 'Copyright ©2015' . | xargs sed -i "" 's/2015/2016/g'

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######
Application Class
######

AdtagInitializer.initInstance(this)
                .initUrlType(Url.UrlType.PRE_PROD)
                .initUser("*******",  "**********")
                .initCompany("********");

AdtagLogsManager.initInstance(this, Network.ALL, 200, 1000 * 60 * 2);

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//package com.your.app.package;

import android.content.Context;

import java.io.File;

public final class PicassoCacheUtil {

    public static boolean clearImageDiskCache(Context context) {
        File cache = new File(context.getApplicationContext().getCacheDir(), "picasso-cache");

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//Note: I'm using JodaTime API to handle dates

public void checkPicassoCacheDate() {

        final DateTime remoteImagesDate = mRemoteConfig.getRemoteImagesDate();
        final DateTime imagesCacheDate = mUserDefaults.getImagesCacheDate();

        if (remoteImagesDate.isAfter(imagesCacheDate)) {
            //Local cache is old, clear it and save new date in a different thread
            Thread t = new Thread(new Runnable() {

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import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;

import com.greenlionsoft.cercaniaslib.R;
import com.greenlionsoft.sharedlib.logs.Logx;

import java.util.Arrays;

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class FavoritesProvider : IFavoritesProvider {

    val database = FirebaseDatabase.getInstance()
    val gson = Gson()
    val favoritesCache = FavoritesMemoryCache()

  override fun saveBusStopFavoritesList(favorites: List<BusStopFavorite>) {
        //save in cache
        favoritesCache.saveBusStopFavoritesList(favorites)
        //save in remote

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class FavoritesMemoryCache {

  //Bus Stop Favorites
  private var busStopFavoritesList: MutableList<BusStopFavorite>?=null
  
  fun retrieveBusStopFavoriteList(): List<BusStopFavorite>? {
      if (busStopFavoritesList != null) {
         return busStopFavoritesList.toList()
      }
      return null

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//It emits "1", "2", "3" then signals completion
Observable.range(1,3)

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//retryCount is a Long variable value
//eg. When retryCount = 1, observable emmits a 0L after 2 sec, then completes
//eg. When retryCount = 2, observable emmits a 0L after 4 sec, then completes
//eg. When retryCount = 3, observable emmits a 0L after 8 sec, then completes
Observable.timer(Math.pow(2.toDouble(), retryCount.toDouble()).toLong(), TimeUnit.SECONDS)