Tutorials & Examples

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

Please test reading your NFC credit card.....

Please test scanning of your NFC enabled credit card using the APK in the download link below. Please ensure that you have enabled NFC on your cell/device before you do a scan - the...
 
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Help Management for Application

Hello hope your'e well.
Apps are getting more and more complicate and to work with the user needs a manual. This examples shows how you can add an help dialog to your B4XPages Project. The help...
 

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  • pdfHelpExample.zip
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[B4X] MQTT Chat Room

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  • Chat_B4J.zip
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  • Chat_B4A.zip
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Backup/Restore SQLite Database

Hello
This is an example of how to back up and restore the SQL Lite database as the database produces three files with three extensions
with the following extensions 'db.db'...
 

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  • backup.restore.sqlite.zip
    17.7 KB · Views: 933
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my share creation simple carousell

For the First I said Thank Too Much For Great Mr.Errel That my Inspirator, StarDust and All Of member that i can't say person by person, i wish yours appologize of my bad english, this my first...
 
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Send and Recive SMS from PC using AsyncStreams in Wifi e VB.Net

android 12
 

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  • SMSWifi12.zip
    114.4 KB · Views: 568
  • wifiSMS.zip
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ScrollView examples summary

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Check if the application is running on a Chromebook

If you want to check if the application is running on a Chromebook (for example to do some specific GUI reconfiguration to run in a resizable Window), you can use the following routine.
Hope it...
 
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How to convert from Firebird to Sqlite

I had to deal with a database format transformation problem from Firebird to SqliteDb
I want to share my experience because I've already seen some users who asked questions about Firebird...
 
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User selection of a voice for Text To Speech.

I've just added a speech to text facility to my note taking app using

SpeechToText - Continuous Offline Voice Recognition

This is a wrapper of Acephei VOSK , With this, you can add continuous offline speech recognition feature to your application, NOTE: As it works offline the app should be complied with the voice model. It will increase the app size by 30-40Mb. The accuracy depends on the voice model. You can...
www.b4x.com

and text...
 
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Intents and receivers

With the new imodules that allow you to work better with the intent and receivers, it is necessary to develop some examples of how to use them (even before it could be done but not in...
 

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  • device_filter.zip
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  • IntentUSB.zip
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Geofence - Monitoring a region in the background

Geofencing is an Android feature that allows your app to be notified when the user enters or exits a monitored region.

The nice thing about this feature is that your app doesn't need to run for...
 

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  • Geofence.zip
    15.6 KB · Views: 788
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Audio Ringbuffer

if you want to build instant music in apps from single sounds, it is important that the samples are absolutely synchron and perfect in timing. So you should send one single stream to the system...
 
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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...
 

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  • Project.zip
    14.6 KB · Views: 1,956
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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...
 

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  • Project.zip
    10 KB · Views: 2,709
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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...
 

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  • assets.zip
    82.9 KB · Views: 879
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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...
 
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[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: 792
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