Tutorials & Examples

I found some code on the internet that works with a standard ListView, an example is attached. I use ListView's all the time with large lists >3000 items and I will find this one useful.

It uses...

 

I just wanted to say thank you. I am new to coding, and trying to learn it. There is a lot of useful information if you search and dig for it.. no pain no gain LOL

Also some cool guys I...

 

I had some issues with one of my apps receiving FCM messages correctly (when the phone was off and when it was swiped away/killed by the user). The other day I had a problem with my Google...

 

A short description using the MFColorMatrix class from my MFLib.

A color matrix is a 4x5 matrix for transforming the color and alpha components of a Bitmap.
The definition of...

 

First go to https://openweathermap.org/price and get APIKEY
Insert in the APIKEY in source code where are (INSERT_YOUR_APID_HERE).
Read the web for alternatives forecast options.


Create...

 

I will thanks to warwound for FileObserver Library.
Also Thanks to all who share knowledge.

This App receive event when a new file (photo) is created al DCIM folder.
Also You can take photos...

 

Hi all i made a simple crop example, later many try and try its here
if this help someone

Im using the @warwound lib TouchImageView
many thx to @warwound

this sample have one...

 

Please see:

GPS tutorial
Toggle Library
Toggle on/off GPS in any Android version
Set phone clock from GPS

Advantages:
- System date and time are updated periodically.
-...

 

Type=StaticCode
Version=6.48
ModulesStructureVersion=1
B4A=true
@EndOfDesignText@
'******************************************************************************************************
'*...

 

It comes from here. The project displays as an example a colourful battery level indicator. Lib files are in the /files folder of the B4A project. The indicator will only update/redraw when...

 

Please see the original post:

About sticky service - long running background tasks...

 

Hi,
How to send / trigger the KeyCodes.KEYCODE_BACK at runtime without user clicking it

tks

 

This is the same project as what you can find here wrapped by @somed3v3loper - but only converted to inline Java Code. It was originally posted here

Copy...

 

On your form you use an EditText to input time. If you want to calculate with this, may be the following example will help:

Sub AddTime(OriginalTime As EditText,HoursToAdd As Int,MinutesToAdd...

 

 

As you know, Map is a kind of list of pairs of data; each pair is composed of a key and a value which can be of any type.

An example that I believe can be useful:

You have a beautiful table...

 

Here' s a batch file that will back up all your source files and zip it with 7zip with the datetime stamp on each successful compilation. Only external prerequisite is 7zip which is free.

It...

 

This is a very, very simple project implementing a slide switch with B4A code only. Track flag1 and flag2 to know the state of the two switches (i.e are the switches on or off)...

 

I took the BTPrint.zip and modified it to print to my HP Deskjet 100 Mobile using Bluetooth

Attached find a new Zip BTPrint-2.zip (did not want to confuse it with the other one) and a PNG files...

 

See attached B4A project. It implements a digital clock with Arabic numerals. You can edit the png files in the /files folder of the B4A project with something like GIMP and clean them up / change...