b4a

I am building an application that will allow the user to create an application for his friend's birthday without programming and with his own phone. Now I want to put a b4a source in my DirAssets application and sign it on my phone using my Android SDK. How can I do that? I've done this before...

Hello, when I call my server with my library, it works only in Debug mode but crashes in Release mode. And i added permission in manifest: AddPermission(android.permission.INTERNET) The problem is on all my phones, they are with the following android version: 8.0, 9.0 and 11.0. It’s a huawei...

Hello I downloaded the source for b4a from the link below: https://www.b4x.com/android/forum/threads/b4x-xui-wobblemenu-a-cross-platform-animated-bottom-navigation.118412 Source compilation is done correctly but this error occurs when running the application: wobblemenu_designercreateview (java...

Hello everyone! I must make an app (to be more specific 2 apps Android & IOS). I want to connect with AWS MQTT Broker, via MQTT protocol. I made a lot of tries to achieve a connection (first of all, and then publish-subscribe to a topic), with no success. Is there someone, who has used AWS, to...

Hello! I'm getting this error when I do a SQL Select from in SQLite. The data is not big, the query only selecting 3 columns and getting 8 rows of data. android.database.sqlite.SQLiteBlobTooBigException: Row too big to fit into CursorWindow requiredPos=7, totalRows=8 at...

You must have seen many times that in WhatsApp, someone calls us and our phone screen turns on and the call activity is started! I want to implement exactly this feature in my program. (The user's phone may or may not be locked ...) please guide me. Thankful❤️

Hello, How did Telegram, WhatsApp, YouTube, etc. establish their security? A hacker can decompile my program and gain access to my links or IP server and abuse it. For example, send thousands of requests to my server and host in a row. Or enter my api link in the browser and see or change user...

I want to upload an activity on the server and download it from the server in the main activity and then start it. How do I do that?

Hello! I need some help, I don't know what is causing this error to appear. Didn't make any big changes to it and now the app dont even open Registro conectado a: Xiaomi Redmi Note 7 --------- beginning of system --------- beginning of main *** Service (starter) Create *** ** Service (starter)...

Hello, I'm using the exoplayer to stream mp3 from my server. Is it possible to stream from a protected folder? So the mp3 stays protected from unwanted downloading and only streaming via the app is possible? If yes, then please how to do that? I've searched but I can't find similar example...

My app uses webviews to display lightly formatted HTML syncronised from a web server for things like help pages etc. In B4a I use the WebViewSettings library to reduce the text to a reasonable size, as when I add the <meta name='viewport' content='initial-scale=1.0' /> header, it displays very...

This is a very crude version of the code I'm using in a project to create a jigsaw puzzle. What it basically does is cut square images into jigsaw pieces. It's not very cleaned up, but feel free to use and extend as you want. What you can do with this code: Specify the puzzle row/column...

I'm from Germany and there are electricity meters there where you can query the consumption figures. To do this, you have to light up a diode and thereby enter the code so that you can access the device. I wanted to trigger this "blinking" via APP. So I press a button and the LED (of the...

https://www.b4x.com/android/forum/threads/b4x-class-mjpeg-decoder.73702/#content It works well b4j but in b4a android very bad and refresh rate very slow What can be done to be as fast as b4j ?

Can anyone help in coding a basic stopwatch?

hello everyone, Is there any libraries for B4A so you could have a WebView but with address bar & authenticity of internally opened Chrome browser like the way Instagram & Telegram do it? the ChromCustomTabs library is not the answer because of two reasons: 1- you have no controls over it like...

hi everyone, does anyone know what #DebuggerForceStandardAssets: True means & what it really does?? when should I use it?

Hi every one I have a VB.Net program but i can't translate this part of program to B4A In this program connect to the server with NtripCaster and NtripPort and then send username and password and then request for answer from Server (Server response) How can I send and receive this information...

hello everyone, I like to know when using git, which directories or files I should ignore? should I commit backup zip files? what about "Objects" directory? a .gitignore file would be really helpful, thanks in advance :)

How can I change a spinner item by item index (not selected item/index) MySpinner.Add("a") MySpinner.Add("b") MySpinner.Add("Z") MySpinner.Add("d") MySpinner.Add("e") MySpinner.Items(2)="c" '<--