Tutorials & Examples

SQLite has the string function Instr, which finds the first occurrence of a specified string in another string.
There is no InstrRev function though to find the last occurrence of a string within...

 

[B4X] PocketBase - Open Source backend in 1 file

PocketBase was created to assist building self-contained applications that can run on a single server without requiring to install anything in addition. The basic idea is that the common functionality like crud, auth, files upload, auto TLS, etc. are handled out of the box, allowing you to focus...

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This is a very simple tutorial on how to use the CRUD options. A more detailed...

 

I would like to contribute to the never-ending question of how to load local HTML files into a WebView. The reason are the following recently asked questions (here and here by...

 

[B4X] [XUI] AS Settings

Introducing a new library that allows you to create your own settings page with minimal code. This library comes equipped with automatic saving and loading features, making it incredibly easy to manage your settings. It supports booleans, free text, numbers, comboboxes, action buttons and more...

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With this property you can add your own view or layout

In the following example, I add a B4XImageView to...

 

[B4X] [XUI] AS AutoComplete based on AS SelectionList

This is an AutoComplete view, which is compatible with B4XFloatTextField, AS_TextFieldAdvanced, EditText (B4A), TextField (B4i) and TextField (B4J) I spend a lot of time in creating views, like this and to create a high quality view cost a lot of time. If you want to support me and further...

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In this example I will show you how you can use your own data source and also display...

 

Google has deprecated the previous method of sending push notifications. It will stop working on June 2024.
If you have an already working solution then you only need to update the B4J side. Do...

 

This is an example of how to make one of the pages show without the action bar while the others do show it.

Note that usage of IME in the main activity, to find the action bar height.

In each of...

 

Camera2 library is based on the Camera2 API introduced in Android 5 (API 21).
It is designed to work together with CamEx2 class.
It is supported by B4A v7.3+. The library will be included as...

 

This simple function highlights all occurrences of a search term in a given text and returns the result as a CSBuilder.
The output can then be used for labels or MsgBox text.

Spoiler: The code

 Sub...

 

Searching the internet I found a service that allows you to convert any google sheet into a json api, it has a free version that allows you to consult and add data, connecting to the api is quite...

 

If @Erel permits me, I will introduce my Telegram channel for error correction and provide examples specifically for the Persian language.
I am gathering all sorts of errors and putting them...

 

[B4X] [XUI] AS FeatureRequest [Payware]

AS FeatureRequest is a lightweight, easy-to-integrate library that allows you to present a list of potential features to your users, enabling them to vote on the ones they find most valuable. By collecting and prioritizing user feedback, you can accelerate the development of the most desired...

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In this example I show how easy you can display 2 pages, with the features that are under development and...

 

The attached code shows how to create a Floating Menu Button, you can show the button by clicking on a button or a swipe gesture (right edge of the screen).

This is a guide that hopefully will...

 

Introduction

The conversion of the first of my B4A Apps to the newer B4XPages structure was not trivial and involved over 20 hours of research, overcoming misunderstandings, and finding...

 

[B4X] [XUI] AS FeatureRequest [Payware]

AS FeatureRequest is a lightweight, easy-to-integrate library that allows you to present a list of potential features to your users, enabling them to vote on the ones they find most valuable. By collecting and prioritizing user feedback, you can accelerate the development of the most desired...

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In this example I show you how to use supabase as a backend for the AS_FeatureRequest quickly and easily...

 

I have used @Erel's sample project from here:

Camera2 - Still images and videos

Camera2 library is based on the Camera2 API introduced in Android 5 (API 21). It is designed to work together with CamEx2 class. It is supported by B4A v7.3+. The library will be included as an internal library in the next update. Both image capturing and video recording are supported. CamEx2...

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Have added a timer to get the preview bitmap every...

 

B4A v13.0+ should be used with targetSdkVersion 34+.

Android 14 continues the longtime trend of making services less flexible and more difficult to use (converging to iOS background tasks...

 

[B4X] [XUI] AS BottomActionSheet

This view makes it quick and easy to let the user make an action. You need: AS_DraggableBottomCard I spend a lot of time in creating views, like this and to create a high quality view cost a lot of time. If you want to support me and further views, then you can do it here by Paypal or with a...

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In this example I will show you how you can add a small icon to an item and customize it to your needs.

A...

 

For some time now, it has not been possible to place short links to contacts on the home screen via the Contact Apps. Instead, the selected contact is always placed as a widget. However, since I...

 

[B4X] [XUI] AS Settings

Introducing a new library that allows you to create your own settings page with minimal code. This library comes equipped with automatic saving and loading features, making it incredibly easy to manage your settings. It supports booleans, free text, numbers, comboboxes, action buttons and more...

www.b4x.com

This setting allows users to select a color. For example, to change the main app color, which is a premium feature in...