Tutorials & Examples

Alexander Stolte · May 27, 2020

Usage:

SavePictureToFile(XUIImageToJPEGByteArray(CreateThumbnail(xui.LoadBitmapResize(File.DirAssets,"Snapchat-248558753.jpg",150dip,150dip,True)),150dip,150dip,50),File.DirRootExternal,"test.jpg")

...

Erel · May 24, 2020

This example uses PreoptimizedCLV to create a list of BBCodeViews.
In most cases it will be simpler to create a single BBCodeView, as BBCodeView is scrollable. However there might be...

Erel · May 21, 2020

Custom views are designed to be added with the designer.

It is however very simple to create a layout file with the custom view and load it multiple times...

Erel · May 20, 2020

This is a common question and for a good reason.

Custom views classes are not views by themselves.
The views tree only holds views.
This means that this code cannot work:

B4X:

Dim...

Erel · Sep 4, 2017

This guide is relevant for B4A, B4i and B4J.

There are all kinds of tools and libraries available for the different text based formats. The purpose of this guide is to organize the available...

Johan Schoeman · Aug 8, 2015

The attached project comes from here (I have conducted some open heart surgery on it). It is working perfectly on my 7" tablet but on my Samsung S4 mini, unlike what is the case on my...

MrKim · Nov 17, 2019

This subject keeps coming up so I thought I would do a tutorial and sample programs. One is B4A, the other is B4J. If you want code examples download the programs.

The B4J I created for testing...

mshafiee110 · May 13, 2020

1.Declare in your app manifest that your app supports RTL mirroring.
Specifically, add below code in your manifest.

B4X:

SetApplicationAttribute (android:supportsRtl, true)

2. Copy the code you...

KMatle · Dec 26, 2014

Update:

Newer releases of XAMPP come with MariaDB except of MySQL. Basically the same but the php scripts have to be changed a little bit:

- mysql is changed to mysqli
- "$con"...

Almora · Mar 22, 2020

API for live information about COVID-19

##source##

B4X:

Sub covid

    Dim cov1 As HttpJob
    cov1.Initialize("GetAddress", Me)...

DonManfred · Jan 11, 2019

While looking around on interesting projects to wrap i found a java console app (jar file) which is able to create and manage Certificates which can be used in your Server.
It manages Let´s...

margret · Feb 10, 2012

* * * B4A on the Kindle Fire Device * * *

This tutorial is being written to help notify/guide B4A users of known issues that have been found using B4A with the kindle fire device and some...

Erel · Oct 9, 2017

Starting from v1.70 of Net, jNet and iNet libraries the asynchronous methods return a 'sender filter' object.
This object can be passed as the sender filter parameter in a Wait For call.
This...

hatzisn · Apr 20, 2020

Hey everyone,

I just came across this video and I thought I should share it with you:

LucaMs · Apr 20, 2020

EDIT: created a more comfortable library (b4xlib) based on this code, B4XTblClmUtils:
https://www.b4x.com/android/forum/threads/b4x-b4xtblclmutils-v-1-0.116672/post-729034

B4X:

...

Almora · May 6, 2019

hi..
I prepared the youtube playlist using the examples in the forum.

Used libraries:
➡ Javaobject
➡ Labelextras
➡ Okhttputils2
➡ Snyoutube
➡ Stringutils
➡ Xcustomlistview
➡ Xml2map
➡ Xmlbuilder...

Erel · Apr 19, 2020

Lets say that we want to build a layout such as the above where the screen is split into two halves.

If we try to build this layout with a single layout file we will quickly meet a...

Erel · Apr 21, 2020

Use case: you downloaded an old example and you want to reset the manifest editor code so it will have the correct targetSdkVersion and theme.

Open the manifest editor, delete all text and save...

Erel · Oct 17, 2017

B4XCanvas is the cross platform version of Canvas.

Steps to using B4XCanvas:

1. Initialize and pass the target view. In most cases it will be a Panel (or Pane). It must be a Pane in B4J.
2. Make...

Erel · Feb 25, 2016

This library is based on the following open source project: https://github.com/astuetz/PagerSlidingTabStrip
License: http://www.apache.org/licenses/LICENSE-2.0

It...

Tutorials & Examples

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[B4X] Create Thumbnail and save it

[B4X] xCLV + PreoptimizedCLV + BCTextEngine

Attachments

[B4X] I need 100 <custom view here>s. How to add programmatically?

[B4X] How to get <custom view here> from <CLV or any other container>

[B4X] Text, Strings and Parsers

RippleView

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How to connect to SQL Server using jtds-1.3.1.jar

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RTL Layout Support

Complete tutorial: B4A & Your own (local) php & MySql Server (Xampp) with b4a

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COVID API

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[B4X] Manage your own Let´s Encrypt Certificates (ACME Client)

B4A on Kindle Fire & Amazon App Store Tutorial

[B4X] Net library (FTP, SMTP, POP) with Wait For

Create an Android virtual machine or laptop

[B4X] B4XTable - Setting cell (default label) properties

Youtube playlist with xml2map

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[B4X] Nested layouts

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[Tip] Reset the manifest editor code to the default code

[B4X] [XUI] Drawing with B4XCanvas

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TabStripViewPager - Better ViewPager

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Tutorials & Examples

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