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As part of our app, we save log files (.txt) to the device, which the user later retrieves with the File Manager ("My Files"). We are using RuntimePermissions.GetSafeDirDefaultExternal(""). Since Android 11, the location which this references (under Android/data) is no longer accessible to the...

I wanted to start to play with B4R and create some projects for the sake of learning and fun. I need to order some boards in order for me to get started but I am confused. When I read the B4RExampleProjects, I saw there is a board name ESP8622 on page 5 and at the last pages sometimes it is...

Which mac OS is the cheapest version, which operating system version is minimal, for B4i in 2020 work B4i Development on SnowLeopard on VMWare ? ادامه مطلب...

Which old iPhone is the cheapest version, which operating system version is minimal, for B4i in 2020 iPhone 4 ? iPhone7 ? ادامه مطلب...

Howdy, A few years ago I uploaded some apps to Appland ( https://www.applandinc.com/ I think it was appland.se before ). This generated a massive amount of 0 downloads/installs. A few days ago they contacted me if I was interested in an alternative app store for my apps. I had a look at my...

My recent post "The end of B4A as we know it (new google play billing version and mandatory app bundle)" now that I look at it was way of an overstatement. I may have drove Erel nuts forcing him to characterize the title "hysterical nonsense" (which was way of an overstatement too as it came...

I have a C++ app running on an Arduino Nano which has at its core a fast A/D read triggered by a pin interrupt. So, a shaft running at around 3000rpm has a sensor which triggers the interrupt every revolution. I then need to save the time this occurs and then do several hundred fast A/D...

Amir Fragment Android - Fragments A Fragment is a piece of an activity which enable more modular activity design. It will not be wrong if we say, a fragment is a kind of sub-activity. Following are important points about fragment − A fragment has its own layout and its own behaviour with its...

Hello all, I came across this Log To Text File Class in this thread. https://www.b4x.com/android/forum/threads/log-to-txt-file-class.76388/ I found it quite useful. I wanted to introduce two additional methods to read the log file and to delete the log file. Both the methods require the log...

Here is an emulator for the 48 K Sinclair ZX Spectrum, which was my first computer back in the early eighties. There are already several much better emulators available (like Fuse and ZXSP to name a few), so I made this just for fun. And it really has been fun, though quite a lot of work to find...

If the title of this snippet in any way intrigues you then here is the routine which did that conversion. You are, however, warned that however intriguing it might be it is all but totally useless ..... Conversion of decimal numbers to neat integer fractions is something you may have learned...