B4J Tutorials

[Web] Beginning Telegram Mini Apps - Back & Settings Buttons

Hi Fam

The back button controls the visibility & navigation when the back button is active. This is like the normal back button in an app.
The settings buttons show on the right menu of the bot...
 
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[Web] Beginning Telegram Mini Apps - Haptic Feedback

Hi Fam

What is Haptic Feedback?

Your sense of touch provides valuable information about the world around you, and haptics mimic these experiences. If you've played a racing video game and...
 
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[Web] Beginning Telegram Mini Apps - BiometricManager

Hi Fam

Demo (Open the bot from your Mobile Device > Sign In (use any details) > Hamburger > Biometrics > Follow the button sequence. When you click Authenticate, it will show the biometrics...
 
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[Web] Beginning Telegram Mini Apps with BANano

Hi Fam

Demo

Source Code

Let's create some Telegram Mini Apps.

What is TMA?

These are apps that run inside Telegram. They use Bots to run.

Here we go...

Related Content...
 
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[Web] SithasoDaisy SDUITable Inline Editing - Calculations

Hi Fam

Download

NB: This project is built with SithasoDaisy 2.5 BETA, however the same principles discussed here still apply.

This demo project is about how inline editing works. When...
 
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B4J app for Raspberry with jdk11

This is my shopping list after various installations on Raspberry:

The Runtime for B4J applications for Raspberry differ in the processor version
If ARM version 7 Use...
 
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Create a crypto trading bot using ccxt




Hello all,

I made a template to save time when creating a crypto trading bot with B4j. I'm posting this "as-is" for now, since I'm currently working on Tradingview's pine...
 

Attachments

  • _Bot_Template.zip
    242.9 KB · Views: 456
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Pocketbase CRUD REST API & SSE with PostMan and then HttpUtils

Hi

CRUD Examples Attached

PocketBase is an open source backend consisting of embedded database (SQLite) with realtime subscriptions, built-in users management, convenient dashboard UI and...
 

Attachments

  • PocketBase.zip
    6.9 KB · Views: 436
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[BANano] inline php -> server code

Peter had a great idea for a new feature in BANano:
Kiffi said:
Hello Alain,

So you don't get bored , I have an idea for another BANano killer feature: ServerCode

Imagine, it would be...
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Consuming http streams

Standard http communication is made of a request being sent from the client to the server and the server response sent back to the client.
As I'm sure you know you should use OkHttpUtils2 for such...
 

Attachments

  • MjpegWithOkHttp.zip
    4.5 KB · Views: 1,025
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ThingSpeak Data Viewer Tutorial (updated)

I made a few useful (in my biased opinion updates to the very interesting project by Mark Read: ThingSpeak Data Viewer
Thank you Mark and thank you Klaus for xChart



The...
 

Attachments

  • ThingSpeak.zip
    54.7 KB · Views: 307
  • Test.zip
    2 KB · Views: 284
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[Web] Self Hosting Supabase

Hi Fam

I just found this video on YT, have not tried it out. If you do, please share your experience.


Have fun!
 
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[ABMaterial/ABMServer] Mini Template for absolute beginners (update 2024/05/17)

Hi all,

Since the lockdown everywhere, a lot of B4X users seem to want to learn ABM to make WebApps in B4J. That is great!

However, some seem to struggle a lot to get started. I understand...
 

Attachments

  • 1588503676773.png
    8.3 KB · Views: 4,838
  • 1588532671395.png
    15 KB · Views: 4,782
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[BANano] SupaBase (FireBase Alternative) crud example with SSE

Hi

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically...
 

Attachments

  • SDUISupaBase.zip
    3.5 KB · Views: 539
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[Web][SithasoDaisy] Mastering the SDUIDragTabs Component i.e. Draggable Tabs

Hi Fam

This component helps with scrolling tabs which are clickable, more like the YouTube draggable tabs.



When the page is shown, we build up the page

B4X: 
'sub to show the page...
 
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[Web][SithasoDaisy] Deciding on Shared Hosting vs VPS Hosting - The Vehicle Expense Tracker WebApp Use Case (PocketBase & MySQL)

Hi Fam.

Demo

It is with pleasure to release an updated Vehicle Expense Tracking WebApp (PocketBase) and also a new version using Secure Api Key MySQL REST API.

When developing...
 
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[Web][SithasoDaisy] Deciding on Shared Hosting vs VPS Hosting - The Vehicle Expense Tracker WebApp Use Case (PocketBase & MySQL)

Hi Fam.

Demo

It is with pleasure to release an updated Vehicle Expense Tracking WebApp (PocketBase) and also a new version using Secure Api Key MySQL REST API.

When developing...
 
Click to expand...

[Web] Creating Secure MySQL REST API based WebApps using Api Keys on top of HTTPS

Hi Fam.

This tutorial is based on the api.php project, originally posted in the forum on September 9, 2022. See the Related Content section below.

This time around we are looking at how we...
 
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Web API Server v2

Note:
This tutorial is based on Web API Server v2.02 and is deprecated.
Please refer to (B4J Tutorial) Web API Server v3

Introduction:...
 
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ABMaterial - "Add to Home Screen" functionality - principally for Android Chrome and iOS Safari

PREAMBLE

This probably doss not rank as a tutorial but then it is not a question either - so tutorial it is.

The following is the result of my attempt to get my head around the...
 
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