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SwipeRefreshLayout work with RecyclerView

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_orientation="vertical">

 <TextView
 android_id="@+id/item_text"
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_textSize="28dp"/>

</LinearLayout>

package com.blogspot.android_er.androidswiperefresh;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ItemHolder>{

 private List<String> itemsList;
 private OnItemClickListener onItemClickListener;
 private LayoutInflater layoutInflater;

 public RecyclerViewAdapter(Context context){
 layoutInflater = LayoutInflater.from(context);
 itemsList = new ArrayList<String>();
 }

 @Override
 public ItemHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 View itemView = layoutInflater.inflate(R.layout.layout_item, parent, false);
 return new ItemHolder(itemView, this);
 }

 @Override
 public void onBindViewHolder(ItemHolder holder, int position) {
 holder.setItemText(itemsList.get(position));
 }

 @Override
 public int getItemCount() {
 return itemsList.size();
 }

 public void setOnItemClickListener(OnItemClickListener listener){
 onItemClickListener = listener;
 }

 public OnItemClickListener getOnItemClickListener(){
 return onItemClickListener;
 }

 public interface OnItemClickListener{
 public void onItemClick(ItemHolder item, int position);
 }

 public void add(int location, String iString){
 itemsList.add(location, iString);
 notifyItemInserted(location);
 }

 public void set(int location, String iString){
 itemsList.set(location, iString);
 notifyItemChanged(location);
 }

 public void clear(){
 itemsList.clear();
 notifyDataSetChanged();
 }

 public static class ItemHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

 private RecyclerViewAdapter parent;
 TextView textItemText;

 public ItemHolder(View itemView, RecyclerViewAdapter parent) {
 super(itemView);
 itemView.setOnClickListener(this);
 this.parent = parent;
 textItemText = (TextView) itemView.findViewById(R.id.item_text);
 }

 public void setItemText(CharSequence itemString){
 textItemText.setText(itemString);
 }

 public CharSequence getItemText(){
 return textItemText.getText();
 }

 @Override
 public void onClick(View v) {
 final OnItemClickListener listener = parent.getOnItemClickListener();
 if(listener != null){
 listener.onItemClick(this, getAdapterPosition());
 }
 }
 }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
 
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_padding="16dp"
 android_orientation="vertical"
 tools_context="com.blogspot.android_er.androidswiperefresh.MainActivity">

 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_layout_gravity="center_horizontal"
 android_autoLink="web"
 android_text="http://android-er.blogspot.com/"
 android_textStyle="bold" />

 <Button
 android_id="@+id/clearall"
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_text="Clear All"/>

 <android.support.v4.widget.SwipeRefreshLayout
 android_id="@+id/swiperefreshlayout"
 android_layout_height="match_parent"
 android_layout_width="match_parent">

 <android.support.v7.widget.RecyclerView
 android_id="@+id/myrecyclerview"
 android_layout_width="match_parent"
 android_layout_height="match_parent"/>

 </android.support.v4.widget.SwipeRefreshLayout>

</LinearLayout>

package com.blogspot.android_er.androidswiperefresh;

import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.text.DateFormat;
import java.util.Date;

public class MainActivity extends AppCompatActivity implements RecyclerViewAdapter.OnItemClickListener{

 SwipeRefreshLayout swipeRefreshLayout;
 Button btnClearAll;

 private RecyclerView myRecyclerView;
 private LinearLayoutManager linearLayoutManager;
 private RecyclerViewAdapter myRecyclerViewAdapter;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 swipeRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swiperefreshlayout);
 swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
 @Override
 public void onRefresh() {
 refresh();
 }
 });
 btnClearAll = (Button)findViewById(R.id.clearall);
 btnClearAll.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 //In order to prevent the racing condition of updating removed item in refreshing,
 //disable "Clear All" if refreshing
 if(!swipeRefreshLayout.isRefreshing()){
 myRecyclerViewAdapter.clear();
 }
 }
 });

 myRecyclerView = (RecyclerView)findViewById(R.id.myrecyclerview);
 linearLayoutManager =
 new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
 myRecyclerViewAdapter = new RecyclerViewAdapter(this);
 myRecyclerViewAdapter.setOnItemClickListener(this);
 myRecyclerView.setAdapter(myRecyclerViewAdapter);
 myRecyclerView.setLayoutManager(linearLayoutManager);

 }

 private void refresh(){

 final int pos = myRecyclerViewAdapter.getItemCount();
 myRecyclerViewAdapter.add(pos, "Refreshing...");
 swipeRefreshLayout.setRefreshing(true);

 //refresh long-time task in background thread
 new Thread(new Runnable() {
 @Override
 public void run() {
 try {
 //dummy delay for 2 second
 Thread.sleep(2000);
 } catch (InterruptedException e) {
 e.printStackTrace();
 }

 //update ui on UI thread
 runOnUiThread(new Runnable() {
 @Override
 public void run() {
 String currentDateTime =
 DateFormat.getDateTimeInstance().format(new Date());

 myRecyclerViewAdapter.set(pos, pos + " - " + currentDateTime);
 swipeRefreshLayout.setRefreshing(false);
 }
 });

 }
 }).start();
 }

 @Override
 public void onItemClick(RecyclerViewAdapter.ItemHolder item, int position) {
 Toast.makeText(this,
 position + " : " + item.getItemText(),
 Toast.LENGTH_SHORT).show();
 }
}

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Struggling to stay focused on your Work This App Might Help Ubuntu PPA

Ambient Noise is a very clean implementation of a simple idea that will help you stay focused on your work while on the computer. And it integrates well with your Ubuntu sound menu. Care to learn more? Read on.

Ambient Noise for Ubuntu PPA (Ubuntu 15.10, Ubuntu 15.04, Ubuntu 14.04)

Listen to the sounds of nature and relax yourself. Ambient Noise is a no non-sense application that is capable of playing a wide variety of sounds from nature non-stop and without much fuss. The idea behind Ambient Noise might be simple, but such is the nature of extremely popular apps, that can also have a profound impact on your work habits. Selection of sounds include rain, storm, coffee shop, forest, night, wind and fire.

Installation is super easy. Just do the following in Terminal.

sudo add-apt-repository ppa:costales/anoise
sudo apt-get update
sudo apt-get install anoise

After completing the installation, launch the Ambient Noise application from Ubuntu menu. Thats it. The app sits nicely in your sound menu and you can skip, pause and play through the preloaded sounds from the Unity sound menu. Ambient Noise works in offline mode as well.

And guess what, you can download even more sounds from the ANoise Preferences window. I have to concede that Im enjoying this app more than any other supposedly relaxing music Ive in my playlist. And my favorites are rain and storm modes. If you want to support the project, do visit ANoise homepage. Thanks for reading. 

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