b4a

Can I have Sample Code for the communication between Mobile and PC over bluetooth. Also is it possible to connect multiple mobile devices with one PC Bluetooth app. If possible plese provide sample code.

hi all i want to stream camera in my app using rtsp im using RTSPVidePlayer and it works fine with h264 but when stream is in h265 nothing shows how can i stream h265 ?

I am using this tutorial https://www.b4x.com/android/forum/threads/connect-android-to-mysql-database-tutorial.8339/ To connect to a MySQL DB, everything works fine, but I have a problem. Sometimes I need for the query to finish before proceeding to the next line of code This is what I want to do...

Name: TDScreenOnOFF Version: 1 This solution gives the user the possibility tu override the phone screen off timeout. The settings values will not affected (Button btAn). After override the button color turns yellow. After doing his actions while the screen is on the user is able to reset back...

I am using B4XTable in my app and it is working great. Is there a way to change the colors and fonts of the B4XTable Title, Navigation and Search area? I know that I can access the Title but I get an error that it has not been initialized even after adding the columns and setting the data. I am...

Hello guys, I hope you are well I want to write a project that has permission to Storage, like most programs that display a pop-up and have a Deny and Allow option for Storage. After that, I want to send a file (for example, a photo in the existing path) to the Telegram bot. How to write this...

sorry, I try to put a video in b4a and I saw what they recommend, the problem is that I don't know how to add additional libraries and I get this error B4A Version: 11.20 Parsing code. (0.01s) Java Version: 11 Building folder structure. (0.01s) Running custom action. (0.03s) Compiling code...

Good evening I must make an application that sends x amount of SMS I would like to know if there is currently a limit for sending SMS from Android and if there is, how much is it and what options do you recommend for the development of this app

Not long ago Don provided example Provider Requester Activity based communication via Intents. Although that Activity version had some hints in it for Service based version, it took several additional steps to get it working (Service Intent must be explicit, which may reflect more on my...

Hello, I am trying to create an UltimateListView using data from a SQLite database. How do i achieve this? I thought about executing the query in the Activity_Create, like this: Dim ConnessioneDB As SQL ConnessioneDB.Initialize(File.DirInternal, "DatabaseListino.sqlite",False)...

B4XDrawer panel allows all touch / click event to pass to elements below it unless it is on an element in the panel. Although I avoid modification in a class directly, to avoid issues when upgrading, I tried capturing LeftPanel_Click and LeftPanel_touch sub in B4XDrawer but it does not fire...

Hello everyone! I read a lot of posts about this issue, but I did not succeed to find a solution. I use firebase notification. Is there any way that my app can show the notification while is not running? As I saw logs, I received the Message, but the method notification.notify doesn't do...

What are the (full) version numbers of build-tools, tools & platform-tools in links to 'Android SDK Command line tools' (filename is commandlinetools-win-6609375_latest.zip) & ''required resources' (filename is commandlinetools-win-6609375_latest.zip) in the B4A installation instructions on...

I have wirelessly connected successfully with B4A-Bridge 2.62 from B4A v11.20 (using Tools->Connect) to my Android phone. But when I do Project->Compile &Run on any project I get: adb.exe F 03-02 09:17:47 427 425 sysdeps_win32.cpp:2743] _wenviron is not set, did you link with -municode? I...

I've been trying to find the B4XPagesNavBar project without success. I've used [B4X] [B4XPages] as a search term in the overall Tutorials web page as stated in the B4X booklet but that gives many projects. And I haven't found a suitable search mechanism to find B4XPagesNavBar: I've tried terms...

Well, I ve decided to create a Form-View Generator (B4J - B4A)... that creates Forms with B4XTable + with no writing code at all... The Designer is in B4J (like FormBuilder), the produced code/files working at B4A too !!! Well.. after one month of programming... I want to share / sell my...

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...