Flaccuss

package com.mirth.stevek.rxtest;

import rx.Observable;
import rx.functions.Action1;
import rx.functions.Func1;
import rx.functions.Func3;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.*;

Flaccuss

/**
 * Will process the data with the callable by splitting the data into the specified number of threads.
 * <b>T</b> is ths type of data being parsed, and <b>U</b> is the type of data being returned.
 */
public static <T, U> Iterable<U> parseDataInParallel(@NonNull List<T> data, Function<List<T>, ObservableSource<U>> worker) {
    int threadCount = Runtime.getRuntime().availableProcessors();
    ExecutorService threadPoolExecutor = Executors.newFixedThreadPool(threadCount);
    Scheduler scheduler = Schedulers.from(threadPoolExecutor);

    AtomicInteger groupIndex = new AtomicInteger();

Flaccuss

import java.io.Serializable;

/**
 * The perfect implementation of Singleton design pattern
 * Properly solves all the below mentioned problems in Singleton pattern
 * <p>
 * 1) Attack using Reflection API
 * 2) Problems from serialization/deserialization of your object
 * 3) Problems from cloning your object
 * 4) Uncertainty in a multi-threaded environment

Flaccuss

RecyclerView item onClick

RecyclerView does not have an OnItemClickListener like it's predecessor, ListView. However, detecting item clicks is pretty simple.

Set an OnClickListener in your ViewHolder creation:

private class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder>  {

    public static class ViewHolder extends RecyclerView.ViewHolder

Flaccuss

// TODO add <meta-data android:value="GlideModule" android:name="....OkHttpProgressGlideModule" />
// TODO add <meta-data android:value="GlideModule" tools:node="remove" android:name="com.bumptech.glide.integration.okhttp.OkHttpGlideModule" />
// or not use 'okhttp@aar' in Gradle depdendencies
public class OkHttpProgressGlideModule implements GlideModule {
	@Override public void applyOptions(Context context, GlideBuilder builder) {	}
	@Override public void registerComponents(Context context, Glide glide) {
		OkHttpClient client = new OkHttpClient();
		client.networkInterceptors().add(createInterceptor(new DispatchingProgressListener()));
		glide.register(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(client));
	}

Flaccuss

class NewsScreen extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => _NewsScreenState();
}

class _NewsScreenState extends State<NewsScreen> {
  final List<String> listItems = [];

  final List<String> _tabs = <String>[
    "Featured",