Marchuck

Parser parser = new Parser();
        parser.execute(UrlConstant.SECOND_FEED_URL);
        parser.onFinish(new OnTaskCompleted() {
            @Override
            public void onTaskCompleted(@NotNull final List<Article> list) {

                final List<Article> filtered = new ArrayList<>();

                for (int i = 0; i < list.size(); i++) {
                    Article article = list.get(i);

Marchuck

        //...
        secondFeedAdatper = new SecondFeedAdatper();
        secondFeedAdatper.setClickListener(new SecondFeedAdatper.ClickListener() {
            @Override
            public void onArticleClick(Article article) {
                if (article.getLink() != null && !article.getLink().isEmpty()) {
                    if (getActivity() instanceof LockscreenActivity) {
                        ((LockscreenActivity) getActivity()).openURL(article.getLink());
                    }
                }

Marchuck

//offline-first usecase for api requests 
//one you have to do is to include rxjava to your project,
//some Api(could be Retrofit based),
//some Preferences(could SharedPreferences based / some database),
//some SerializerUtil (could be gson, moshi)

import com.google.gson.JsonSyntaxException;
import com.google.gson.annotations.SerializedName;
import io.reactivex.Observable;
import io.reactivex.functions.Consumer;

Marchuck

class Foo {
    public void showNotification(String _subText,
                                  String _bigContentTitle,
                                  String _bigText) {
  
        String channelId = "channelId";

        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context, channelId);

        notificationBuilder.setAutoCancel(true);

Marchuck

protocol ImageDelegate{
  func onImageReceived(_ picker: ImagePickerController, didReceiveValue value: UIImage)
  func onCancel(_ picker: ImagePickerController)
}

class TakePictureController : UIViewController, ImageDelegate{
  
  func takePicture(){
    let imagePicker = ImagePickerController()
    imagePicker.delegate  = self//self conforms to ImageDelegate protocol

Marchuck

class LoginViewController { 
  
  var userName: String = "joe@doe.com"
  
  let HOME_SEGUE = "HOME_SEGUE"
  let FORGOT_PASSWORD_SEGUE = "FORGOT_PASSWORD_SEGUE"

  func startHomeScreen(){
     self.performSegue(withIdentifier: HOME_SEGUE, sender: self)

Marchuck

#!/bin/bash

for i in "${@:3}"
do
   echo "generating  $i x $i icon..."
   sips -z $i $i  $1 --out $2_$i.png
done

Marchuck

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">
    <data>
        <variable
            name="personModel"
            type="pl.marchuck.pagingexample.pagination.adapter.SwapiPersonViewModel" />
    </data>
    <android.support.v7.widget.CardView ...>

Marchuck

class SwapiPersonViewHolder(private val binding: ItemSwapiPersonBinding) : RecyclerView.ViewHolder(binding.root) {

    fun bind(item: Person?) {
        binding.personModel = SwapiPersonViewModel(item)
        binding.executePendingBindings()
    }
}

Marchuck

class SwapiAdapter(diffCallback: DiffUtil.ItemCallback<Person?>)
    : PagedListAdapter<Person, SwapiPersonViewHolder>(diffCallback) {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SwapiPersonViewHolder {
        val inflater = LayoutInflater.from(parent.context)

        val binding = DataBindingUtil.inflate<ItemSwapiPersonBinding>(
                inflater, R.layout.item_swapi_person, parent, false)
        return SwapiPersonViewHolder(binding)
    }