b4a

Hello, I would like to suggest that the installation page have information about the minimum requirements for installation. I noticed that the current version of B4A requires an x64 Operating System (Windows 7), DotNet4.5. For example, without DotNet you may get a black screen when trying to...

I have been using B4A for many years, with this version I solved a variety of problems using mobile devices. 20 years ago I programmed applications for Windows, now only mobile applications. I do not understand the development strategy of B4A. My very subjective opinion is that it would be ideal...

Hello everyone, I'm trying to connect to a server via SFTP using the JSch library. I can connect successfully using FileZilla, but I'm unable to connect through my application. From the logs, I got this error: com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO...

I developed a two-way chat system using ServerSocket and Socket in B4X. This project allows a connection to be established between a client and a server within a local network, enabling messages to be exchanged in real time. 🔹 Code structure The system is based on: - ServerSocket for...

B4A版本:13.10 解析代码。(0.11秒) Java版本:19 构建文件夹结构。(0.07秒) 运行自定义操作。(0.04秒) 编译代码。(0.23秒) 编译布局代码。(0.00秒) 组织图书馆。错误 找不到美芬神器:com.android.support/support-compat 来源:B4XPreferencesDialog 帮帮我，

Hello everyone, I'm using the AS_DatePicker library (v1.31) and I've encountered two main issues. I’m displaying the DatePicker inside a Panel that becomes visible when a Label is clicked, and it hides again once a date is selected. Here are the problems I’ve run into: Wrong Year Selected on...

I have written a simple response to return the text of a file to the system requesting it. The text file is simple json and it works fine. However, I also need to send a zip file. The requirements do not allow me to send it via FTP, I have to send it via websocket, I am using AsyncStreams. I...

Hi, Which approach is better for implementing a user interface: direct coding or using Designer (layout)? Which method offers greater speed and is more standard? Furthermore, if the UI is implemented with a layout, is it possible for it and the .bal files to be decompiled and stolen? If so, how...

We would like to create a library in the B4xLib format. The library must contain Activities, with their respective .bal layout files. Unfortunately, the B4a program that will use this library, reports the error "The given key was not present in the dictionary." and reports a compilation error...

Would there be a possibility to make modules/classes with visibility private, when creating libraries in the B4XLIB format? Thanks.

I am developing an Android application using B4A, and my goal is to implement a real-time chat feature. My approach is to use Sockets for all application communications, including user registration and login processes, as well as the main chat section, to create a completely real-time...

It would be very useful to add compilation functionality also for libraries in the b4xlib format, including the "manifest.txt" file.

添加按钮会自动添加文本默认情况下，button1.text =“ button1” 这更接近VB6 IDE的使用，当初学者或仅测试时，他们希望通过最小的操作实现功能

Finally released my last game. It's been almost 2 years in the making (not full time, obviously, and I've made other parallel projects), but I proudly can bring to you the game in its final form (here is the WIP thread, you can see there the making of) DOWNLOAD HERE! 🔵 Bubble Shooter -...

inside class: ' inside another sub for initilize wve.Initialize(webv) Dim WebChromeClient1 As DefaultWebChromeClient WebChromeClient1.Initialize("WebChromeClient1") wve.SetWebChromeClient(WebChromeClient1) private Sub webv_PageFinished (Url As String) ' wve is same webviewextras 'This...

Hello I created a chat page, now I want it to be like Telegram, where when we click on the edit text, the keyboard opens and the edit text button appears above the keyboard, so we can see what we typed I couldn't think of anything, because the layout doesn't work either, because the keyboard...

hello if you have a panel and you want scroll this panel then you use this source. at first create scrollview in source code then cut views in your panel and paste in scrollview panel now show this ' ______________________________________ If scvSetup.IsInitialized = False Then...

Hi, I have a complex client/server app that I'm not sure I can share the entire code with but happy to do a zoom with someone to show them what is happening. The server side sends a packet of data that contains everything to draw the GUI on the screen - this includes labels and edit text...

Here Log when i plug-in and try to start a communication with my otg - USBToIrDa Manufacturer : ARKMICRO ������������������������������������ Product : USB TO IRDA �������������������������������������� Serial : not available DeviceName : /dev/bus/usb/001/014 DeviceClass ...

Hi DonManfred, Sorry to trouble you. I'm having some issues with the authorisation flow using the v7 SDK. Where as previously I could call auth.startOAuth2Authentication and all was right with the world, I'm having issues getting auth.startOAuth2PKCE to work. is...