Tutorials & Examples

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

FusedLocationProvider + Resolution Dialog

** This is the only option to enable location services from inside your app. **

Example was updated and is based on B4XPages.
Don't miss:

1. ShowResolutionDialog sub that is added to Main. It...
 

Attachments

  • Project.zip
    14.6 KB · Views: 1,414
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BLE nRF Connect pre-BLE2 problem solving

It is surprising how often the basics get missed, when embroiled in heat of battle of programmer vs hardware, operating system, complex apis and libraries, etc.

I have found that whenever my BLE2...
 
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[B4X] [B4XPages] GoogleMaps example



Example of showing a Google map, in a cross platform B4XPages project. The APIs of the three GoogleMaps libraries are quite different from one another, so we need to use platform...
 

Attachments

  • Project.zip
    10 KB · Views: 2,319

New online AI Regex Generator!

Check this out!

sheetai.app which helps use ai in google sheets, just ask it and done!

Quick Demo:



Tutorial:

 
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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...
 

Attachments

  • assets.zip
    82.9 KB · Views: 653
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Capture volume keys events while app is in the background

Could some Java guru kindly convert the following codes into B4A code for me, if possible, please? I would greatly appreciate it!

I'm looking for a reliable solution as a background service...
 

B4A Book Now Covers Version 11.20



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


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)...
 

Attachments

  • AS WheelPicker PlusMinus Example.zip
    180.2 KB · Views: 494
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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...
 

Attachments

  • B4A_TimezoneMapper.zip
    434.5 KB · Views: 319

[B4X] [BitmapCreator] Cross platform Falling Sand game



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

The Particles...
 

Attachments

  • B4A_FallingSand.zip
    25.6 KB · Views: 879
  • B4i_FallingSand.zip
    177.6 KB · Views: 673
  • B4J_FallingSand.zip
    24.6 KB · Views: 712
  • GameUtils.bas
    6.5 KB · Views: 767
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Run B4A in Ubuntu 19.04

1) sudo apt install -y wine winetricks

2) winetricks dotnet452

3) wine B4A.exe

4) winetricks
install windows DLL or component
vcrun2010



5) right click icon B4A...
 

[B4X] [B4XPages] Barcode Reader



B4A + B4i barcode reader.

Don't miss:

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

Depends...
 

Attachments

  • BarcodeReader.zip
    183.5 KB · Views: 1,903
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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...
 

Attachments

  • Screenshot_2012-11-02-20-02-13 (ridotta).jpg
    28.8 KB · Views: 2,496
  • PinchZoomAndMove_1.45.zip
    115 KB · Views: 4,433
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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)



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

Attachments

  • RSS Example.zip
    20.7 KB · Views: 1,015
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