b4a

FlowMenu Gives a sleek modern animated look to your Menu/Tab. Can be used as Menu / Tabs / Pager / Cards or Simple Info Display. Swipe up, down, left, right to expand or move back and forth between info panels. All panels are exposed and can support any custom layout, custom color or...

Hello! I'm getting this error informed on firebase crashlytics, i can't reproduce it, so I don't know how to fix it or where's the problem. Fatal Exception: java.lang.NullPointerException: Attempt to read from field 'java.lang.Object com.empresa.appname.b4xpagesmanager$_b4xpageinfo.B4XPage'...

Hi im vb.net Devolper and im new to b4a i want to send my App(Debug) to a friend phone how i can do that? like for example in vb.net there is a file called Debug and you can send it to someone but i dont know how to send an app to another android device without the phone being plugged. Thanks...

Does Anyone Know How i can Make News Feed in B4A like in Facebook for Example...Other People online can post stuff...Thanks In Advance

Ciao a tutti. Devo caricare un csv composto da 140.000 righe in una tabella. Ci riesco ma il caricamento è molto lento. Ho provato con la libreria DBUTILS ma mi dà l'errore : Uncaught translation error: min-sdk-version >= 26) Esiste un metodo rapido e veloce per caricare tutti i dati? Al...

hi i need convert angle to y and x from lib joystick v1.0 i need work in just this lib please help thanks

Buenos dias, estoy haciendo un reproductor de streaming (radio online) con B4A Estoy utilizando Exoplayer y tambien probé con MediaPlayerStream y con los dos tengo el mismo problema. El audio se empieza a reproducir, hasta alli todo bien. Pero cuando la aplicacion pasa a segundo plano (abro...

Hi all, When my app is initially installed, it comes with a SQLite database. I'm working on code that allows end users to replace this SQLite database after the app has been installed - I would have them download and save the new database to the device's "Downloads" folder. During the...

Hi all, I'm working on a B4X project (it only needs to work for Android), and I am having trouble getting horizontal and vertical scrolling to work with a Custom List View. For vertical-only scrolling, this code works perfectly (and I'm able to click on a row, and pass its IdentityNo to the...

Hello, I need to convert MPEG file to Bytes in order to send it in UDP packets. How can I correctly transform the file to Bytes? Thank you, Nataly

I want to write a chat program without using Firebase (because I like being independent and I also want to improve my programming skills by doing so) So this program should work in the background and receive messages from others and create a notification. I know this is very easy with Firebase...

Hi all I would like to create an APP to forward an incoming call. F.e., after working-hours, if the call coming from a specific number or a list of numbers or a prefix, then I need to forward the call to another number. Dim PE As PhoneEvents Sub PE_PhoneStateChanged (State As String...

Hi, I want to exchange information between two phones remotely without a server and using ip. Is it possible and how? Please attach a source. Thanks🙏

Hello Community! This is the second UI Example by XTools Group and more examples are on the way :) You can find our first UI Example Here : [UI] [B4A] Camping App UI Example + Source Code In this example we've used CustomListView & XUI Views Librarys. And the Bottom Navigation is coded "Simply"...

I am going through the tutorial from this post: https://www.b4x.com/android/forum/threads/tutorial-of-connecting-android-to-ms-sql-server-using-jrdc2.114856/ From the tutorial I have managed to start the webserver and can confirm the connection to the SQL server database is working. I get the...

使用 b4a , 因为 很多 语法 接近 vb ，绕过 了 繁琐 和 不熟悉 的java ，所以 ，可以 较快速 地 写 出 一些 工程 ， 因为 业务 代码 大多 可以 用 vb 写出 ，而且 b4a 深绿色 的 ide 界面 也 让 人 喜欢 ， 简洁 的 界面 也 让 人 喜欢 ， 但是 ，要 想 让 工程 的 功能增强 和 多一些 ，可能 就 困难 了 ，因为 ，它 不仅 要 用 vb ，还有 不少 涉及 java 和 安卓 的 东西 ， 遇见 这些 问题 ，去 国内 的 qq 群 ，基本 也 是 说不清 ，不少 关于 b4a 的 群 里 很少 谈 b4a ，乱糟糟 在...

用了 一段 时间 b4a 了 ， 也 写 了 几个 工程 ， 但是 ， 因为 英文 水平 一般 ，及 对 java 的 不 了解 ， 现在 对 B4A仍 有 很多 迷惑 和 不清楚 的 地方 ， 现举 出 几处 ，望 能 得到 论坛 中 朋友 的 解答 ， 我 写 的 几个 工程 ，都 是 b4a , 不涉及 b4i 等 ， 感觉 说明书 里 说 的 ，要想 让 苹果系统 和 安卓 都能 用 ，就得 写 b4x 工程 ， b4a 工程 是 不能 被 苹果 手机 用 的 ，我 这个 理解 对吗 ？ 论坛 里 贴 出 的 许多 代码 ，【其 左上角 都 标注 着 b4x 这个...

Dear all, I think I'm quite a good programmer but I have no idea which effects a change of OS has to my apps. The apps are written in B4A but since Android 11 they don't want to work. I've tried a mass of analysis, checks, changes ... What am I doing wrong? Who can help? Thanks in advance...

The question that has been on my mind is whether Earl Uzil developed b4a and b4i with b4j? 😂😂 If so, what is b4j developed with?🤣 Didn't the server write the same site with b4j?😍😅 Really, why is the b4a tag not so popular in StackOver Flow and it can not be used in posts?🙂

Hello Community! This is the first UI Example by XTools Group and more examples are on the way :) In this example we've used CustomListView & XUI Views Librarys and implement a self-made Bottom Navigation(Not the best way). And don't forget to check out the Designer Visuals along with the code...