Tutorials & Examples

I've made this (new thread) post because I just went through all of this and scoured these forums and the Internet and could not find any complete step-by-step instructions that worked, and the...

 

Newer example: [B4X] [B4XPages] Intent based camera

This example uses an intent to take a picture with the default camera app.

It is based on this tutorial...

 

Yesterday I have found out something searching in Google and checking it, it seems that it worked for me (until ipv4 is deprecated). So this is by 50% a tutorial and by 50% a request for other...

 

Immersive mode means full screen mode where the navigation bar is also hidden.

The user can bring back the bars by swiping near the edges.

The required steps are:

1. Call setSystemUiVisibility...

 

How to Draw S-Curved Arrows Between Boxes / Rectangles

When I was building the spatial “tool for thought”, Jade, one frequently requested feature was drawing arrows between blocks, so we could make mind maps, flowcharts, etc. Here’s how I made it.

dragonman225.js.org

(Usually I think I tend to post things like this in Chit Chat, but that's not searchable from the forum search engine so I suppose it's better...

 

Recently for a web project I was forced to seek a solution in the use of Regex. I have found this site which teaches you and allows you to check the use of regex for matching strings etc. I...

 

The native use of B4x on M1 CPU is not possible. But using Parallels and Windows 11 Arm makes it possible to have a perfect working development environment. With one problem: there is no JavaFX...

 

B4A works fine in Parallels windows on M1 MAC.
Here are compilation times for same, fairly large project:
Could Erel comment on significant differences in time execution of various parts.
In...

 

B4XCache is a new collection added in B4XCollections v1.10.
It is key / value store collection, similar to Map.
When the cache reaches the set maximum size, the least recent used items are removed...

 

Two great tools for testing webapps and webhooks

Researching the internet I have found two great tools that can be used for testing webapps and webhooks. The first is called ngrok. What it does is that it creates a tunel to your web app and makes it accessible from the internet through https without port forwarding. It acts as a kind of...

www.b4x.com

 

Hello to you all,
Here is a simple example on retrieving data from a REST API requested using the JSON Generator (you could also use http URL download), the same JSON library is also used to parse...

 

Disclaimer: I do not create/own the original project source code therefore please don't ask me to provide full support. I am just helping a member to make this project work. I do not get any money...

 

Disclaimer: I do not create/own the original project source code therefore please don't ask me to provide full support. I am just helping a member to make this project work. I do not get any money...

 

1. Click on button "Create app".

2. Enter your App name. Select App or Game.

3. Scroll down. Check all the declarations. Click on button "Create app".

4...

 

Hello,

i´m playing around with the Calendars on my Device and want to Query them. I found out how it works using ContentResolver querying the ContentProvider available in Android.

You can...

 

I just got a Skagen Falster 2 watch and logged my first experiences of trying to use B4A to develop aps for it. Here's what I did!

First of all setup the watch with the Wear OS app on a phone...

 

This is an enhanced version based on @Erel 's ContactsUtils v1.20.

NOTE: DeleteContact didn't work on an Amazon Fire tablet with Android 5.1.1 but did on a Moto X Style phone with...

 

Most of us know the material icons / fontawesome.

https://www.b4x.com/android/forum/threads/b4x-materialicons-web-font-chooser.103985/#content

That link is some what outdated. So made a...

 

This example uses SimpleMediaManager to show a list of 400 top sites, based on Alexa dataset.

Each item is made of two panels and a label:
- Panel for the favicon.
- Panel for the...

 

The ConnectAndReconnect sub takes care of connecting to the broker and reconnecting if the connection has broken.
It sends a "ping" request every 5 seconds to help the MQTT client recognize...