namchuai

import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
    public static String TAG = EndlessRecyclerOnScrollListener.class.getSimpleName();

    private int previousTotal = 0; // The total number of items in the dataset after the last load
    private boolean loading = true; // True if we are still waiting for the last set of data to load.
    private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more.
    int firstVisibleItem, visibleItemCount, totalItemCount;

namchuai

compile 'com.android.support:percent:23.0.0'

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public class ConsumerThread extends Thread {
    @Override
    public void run() {
        Looper.prepare(); // (1)
        // Handler creation should be placed here
        Looper.loop(); // (2)
    }
}

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/**
 * Created by namchuai on 8/21/17.
 * Use to convert from Unicode code point to UTF-16
 */
public class Converter {
    private static final int BASE_HEX = 0x10000;

    private static int mHexInput = 0x9FFFF;

    public static void main(String[] args) {

namchuai

public class MySignal {
    protected boolean hasDataToProcess = false;

    public synchronized boolean hasDataToProcess() {
        return this.hasDataToProcess;
    }

    public synchronized void setHasDataToProcess(boolean hasData) {
        this.hasDataToProcess = hasData;
    }

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public class MySignal {
    protected boolean hasDataToProcess = false;

    public synchronized boolean hasDataToProcess() {
        return this.hasDataToProcess;
    }

    public synchronized void setHasDataToProcess(boolean hasData) {
        this.hasDataToProcess = hasData;
    }

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protected MySignal sharedSignal = …

while (!sharedSignal.hasDataToProcess()) {
    // do nothing… busy waiting
}

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public class MonitorObject {
}

public class MyWaitNotify {
    MonitorObject myMonitorObject = new MonitorObject();

    public void doWait() {
        synchronized(myMonitorObject) {
        try {
            myMonitor.wait();

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public class MyWaitNotify2 {
    MonitorObject myMonitorObject = new MonitorObject();
    boolean wasSignalled = false;

    public void doWait() {
        synchronized (myMonitorObject) {
        if (!wasSignalled) {

        try {
            myMonitorObject.wait();

namchuai

public class MyWaitNotify3 {
    MonitorObject myMonitorObject = new MonitorObject();
    boolean wasSignalled = false;

    public void doWait() {
        synchronized (myMonitorObject) {
        while (!wasSignalled) {
            try {
                myMonitorObject.wait();
            } catch (InterruptedException e) {