namchuai

{%- set ns = namespace(uuid = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx') %}
{%- set ns.new_uuid = '' %}
{%- for x in ns.uuid %}
 {%- set ns.new_uuid = [ns.new_uuid,(x | replace('x', [0,1,2,3,4,5,6,7,8,9,'a','b','c','d','e','f'] | random ))] | join %}
{%- endfor %}
{{ ns.new_uuid }}

namchuai

How to install virtualenv:

Install pip first

sudo apt-get install python3-pip

Then install virtualenv using pip3

sudo pip3 install virtualenv 

namchuai

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    android:useLevel="false" >
    <solid android:color="@android:color/white" />
    <size
        android:height="50dp"
        android:width="50dp" />
</shape>

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;