B4J Tutorials

Ola

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This thread is to be about handling events in BANanoVueMaterial (aka BANanoVuetify). This is something that has been requested for me to explain some more.

So I will start by...

 

Ola

There comes a time when you want suggestions on text, combos etc. The WixSuggest elements comes in handy, you feed it a list of data and map it to a control and wala, when keypressing on the...

 

In this thread, I explained how to build a weather station with a Wemos mini and an UDP Receiver to show the data. This is great for the present value but to be able to see a trend we need...

 

Foreword:
This solves a very specific case that may just apply to me. For current development, I'm still on JDK version 8. But for future coding/testing, I also have JDK 11 installed. I often...

 

Hi there

For my text challenge, I need a Gantt chart, have looked and looked and came up with this. It's not neat yet and it's not responsive or material what what.

Does anyone have an idea if...

 

I have no idea where to post this, so please excuse if this is not the right place.

The installation of a bluetooth dongle on the new Raspbian Jessie is apparently different.

Common to...

 

CustomBuildAction is a powerful ally.

Generally to do anything useful you need to call a...

 

This little tutorial is about signing and verifying data you send/receive between apps (= all "programs", even websites). You can use it in B4A without a change (I don't know how B4i works, but I...

 

It's not directly related to B4J but I find it very useful for new RaspBerry owners.

Just installed my 3rd RaspBerry. The ones I have are controlled via Putty (remote) so no keyboard is needed...

 

Spoiler: Some notes about the tutorials

From time to time, jOpenCV examples will be referenced in this tutorial. You can find the donwload link in the first post of the jOpenCV library thread
Syntax: when referencing...

 

ABMaterial has always been one of the fastest RADs from its start, now over 2 years ago. And this dispite being a very big library. But with 3.81 (4.0?), we'll take it to a whole new level...

 

Using timelines, it's possible for two (or more if you change code) listviews to occupy the same space on a form.
This demo will slide one listview, revealing the hidden listview. (A bit like...

 

Visualizing data can be accomplished in many ways.
Here, we are using a chart to graphically depict two elements of a larger dataset - Speed and RPM of a vehicle.

Initially, I tried to store...

 

ABMaterial Framework for WebApps​

Theming​

Definition (Wikipédia):

Theming refers to "the use of an overarching theme...to create a holistic and integrated...

 

For my case study...


I needed a way to upload user profile images to the server and link these to user profiles. The use of the ABMFileInput has touched on some of my screens...

 

It is based on this Github project. Have stripped it bare and compiled the code to a new Jar (OkapiJHS.jar) so that it will only handle DataMatrix barcodes (a pm request that I have...

 

Ola

UPDATE: BANanoSQLite now available for actual sqlite db file CRUD functionality.

This is part 1 of a series of my explorations using SQLite as a backend to a BANano app. I need a...

 

Ola

Download BANanoWebix Things

Copy the 1.Libraries contents to your external b4j libraries folder. The project source code for this lesson is in BANanoWebixMultiPage

Part 5 here closes...

 

Ola

Simply put, this google map allows one to display a google map on their apps. One is able to also add markers that properties can be set up for.

One needs to get their own...

 

Hi,

I had to make my application (PostChat) available on MacOs. I had no problems porting the app to Linux, but I found the port to MacOs very annoying, and had lots of issues. So I'm posting...