Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.

Webview & File.DirAssets - Enough Already

UPDATE: AFTER READING THIS POST, PLEASE REFER TO POST#5 FOR A BETTER SOLUTION (AT LEAST, IN MY OPINION).
a code module provided by member Ivica Golubovic allows you to continue using...
 

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  • assets.zip
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B4A Book Now Covers Version 11.20

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I am happy to announce that both the paperback and electronic versions of the B4A tutorial and reference book “B4A Rapid Android App Development using BASIC” by Wyken Seagrave have...
 

[B4X] AS WheelPicker PlusMinus Example

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This is an example project to demonstrate what is possible with the beautiful ASWheel. From version 2.0 it is possible per function animated (also possible without animations)...
 

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  • AS WheelPicker PlusMinus Example.zip
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Word wrap paragraph text to specified maximum characters line length

We needed to do some word-wrapping re: this thread and figured I may as well post my tawdry effort in case anybody else is looking for ideas ? or code to hang s**t on ?

It has some niceish...
 
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Exploring the b4x UltimateWebView with SithasoDaisy, #TailwindCSS + #DaisyUI UI Toolkit

Hi

This seeks to document my experiences of the UltimateWebView and the newest Sithaso Holdings UI kit, named SithasoDaisy, a TailwindCSS UI kit built on top of BANano + B4x.

Well, this is my...
 

LatLong To Timezone

Hi,
I was looking for a code to know the timezone information from Latitude and Longitude coordinates and I found the code here LatLongToTimezone but it is written in java so I used it in...
 

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  • B4A_TimezoneMapper.zip
    434.5 KB · Views: 399

[B4X] [BitmapCreator] Cross platform Falling Sand game

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The main challenge here is the performance. All particles are updated if needed and redrawn every cycle.

The Particles...
 

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  • B4A_FallingSand.zip
    25.6 KB · Views: 979
  • B4i_FallingSand.zip
    177.6 KB · Views: 770
  • B4J_FallingSand.zip
    24.6 KB · Views: 803
  • GameUtils.bas
    6.5 KB · Views: 877
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Run B4A in Ubuntu 19.04

1) sudo apt install -y wine winetricks

2) winetricks dotnet452

3) wine B4A.exe
Screenshot from 2020-02-22 22-40-04.png

4) winetricks
install windows DLL or component
vcrun2010
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5) right click icon B4A...
 

[B4X] [B4XPages] Barcode Reader

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B4A + B4i barcode reader.

Don't miss:

- #PlistExtra in B4i.
- Manifest code + #AdditionalJar in B4A

Depends...
 

Attachments

  • BarcodeReader.zip
    183.5 KB · Views: 2,257
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[B4X] Using/running B4A and/or B4J on 64 bit Linux Mint 20.2 Cinnamon with 64 bit Wine

Pinch Zoom and Move View tutorial

[Class] Pinch Zoom and Move View

I had the need for my purposes to do the Pinch Zoom in contemporary Move to a View, now I put my code available to anyone who might be in need, just to get...
 

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  • Screenshot_2012-11-02-20-02-13 (ridotta).jpg
    Screenshot_2012-11-02-20-02-13 (ridotta).jpg
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  • PinchZoomAndMove_1.45.zip
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App Bundle - Steps to updating Existing App (apk to aab)

This Tutorial is for those who already have an existing application in the play store that is APK and want to switch to App Bundle (AAB) which will become compulsory in August 2021.

Steps for...
 
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[B4X] WebView + CKEditor (rich text editor)

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This is a cross platform example that adds CKEditor rich text editor using WebView: https://ckeditor.com/ckeditor-5/
Make sure to read CKEditor licensing and pricing...
 
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Valid EAN13 Barcode String

Generate random valid EAN13 barcode string:
B4X:
Public Sub BarcodeEAN13() As String
    
    Dim brcod As String = Rnd(100000000,214000000)
    brcod = "950" & brcod  '<<< change the beginning 3...
 

[B4X] RSS Viewer using xCustomListView

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  • RSS Example.zip
    20.7 KB · Views: 1,115
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[B4X] JSON crack - Visualize your JSON as a diagram

Here is a nice tool that visualizes the JSON like a diagram. Pretty cool.

 

Understanding Network security configuration

Every developer must understand this article if developing any kind of network communication app.

Android os recent versions put end apps users privacy at the heart of its platform, the network...
 

Now you can debug android app directly under Windows11

Intel's Bridge technology will allow Android apps to run natively on Windows 11, now Microsoft released the beta version。

1. download windows11 from...
 
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[B4X] AS ViewPager - Auto Play

In this example project you can see how to add an auto play feautre to the AS ViewPager.
...
 

Attachments

  • AS ViewPager Auto Play.zip
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? [B4X] [XUI] [B4XPages] Using B4A GPS to create a BASIC weather app - Newer developers

Hello All
Here we have an simple example on how you use your Android device GPS in conjunction with OpenWeather API, this is just a simple example and can obviously be changed and updated by...
 
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