write

Hi, I'm working on a project where I'm using S3 buckets to store files and I'm using the code made by @JackKirk (https://www.b4x.com/android/forum/t...re-calculator-b4x-works-on-b4a-b4i-b4j.81272/), I'm doing a non ui app and when I test the code in Debug mode everithing is working as expected...

Google Play's target API level requirements. New apps must target Android 10 (API level 29) What should I do , If I still want to use WRITE_EXTERNAL_STORAGE I my Manifest B4X: uses-sdk android:minSdkVersion="14" android:targetSdkVersion="28"/...

I have created an app to read and write to BLE devices. This is an extension of BLE_Examples. In this example the scan lists all devices found. You connect to a device by selecting it in the list. At this time it connects to the device. Hitting the Read button gets the characteristics from...

Hi I'm a newbie in programming and I wanted to know: 1- Is that possible to write a voice message android app via wifi direct in B4A? 2- How difficult it is to write such an app for a newbie like me? 3- How to do that? ادامه مطلب...

Hello everyone, Here a modbus TCP master library, fully programmed in b4j. This library is asynchronous, by use of the asyncstreams and Callback method. The response is an event, a separate sub, different then your sub where you did the request. This has the advantage that an unresponsive...

Hello! Now I take a picture, write it to a SD card and then read it and send it to FTP server. I think the SD card might get damaged. Is it possible to write a snapshot to a temporary file in RAM memory and then read from there. If so, how? My code now: If File.Exists(File.DirRootExternal...

i am not a proficient programmer. it is a hobby for me. my problem is that after reading many threads on sd card read, write, and studying Erel's example, i still do not understand how to read or write a text.txt file to the sd card. is there a straightforward way to read and write to sd card...