android 11

  1. Pedro Caldeira

    Android Question EscPOSPRinter and Android 1

    Hello, I need help, if possible. I have a B4A App that+ uses @agraham EscPosPrinter class to print to a BT Printer (40 columns). It works flawlessly, except in Android 11. It prints the first ticket and stop ate the middle of the second one Attached I send you an example from a Android 8 tablet...
  2. Pedro Caldeira

    Android Question EscPosPrinter and Android 11

    Hello All, My App prints (EscPOS Bluetooth printer) without errors or issues in Android 8 thru 10, but in Android 11 (Samsung Tab Active3) it can't print the whole ticket It always stop half way, even with resets between the prints, and after it misprints, I cannot print anything else. I have to...
  3. B

    Android Question Copy the file to the Android/data folder

    Hi I have been researching for a long time to be able to copy a file (folder) from dirinternal in the android / data folder. This is easily possible with file.copy in Android 10 below, but in newer versions of Android (some Android 10 and Android 11) it is very difficult and complicated. So I...
  4. Pedro Caldeira

    Android Question Google Maps is not installed or is disabled - android 11

    Hello All, I have an app that works with google maps, and all worked well until android 11 now when I click the Directions Icon, in the bottom right corner, instead of opening google maps and showing the directions I get the message "Google Maps is not installed or is disabled". I stumble across...
  5. W

    Android Question Android 11 error writing contacts: java.lang.SecurityException

    I'm puzzled. When writing contacts (trying to make any kind of modifications to contacts data) I'm getting the below error; the code works fine on Android 7, but not on my new toy with Android 11 (Xiaomi Redmi Note 10), B4A 10.90: RuntimePermissions PERMISSION_READ_CONTACTS and...
  6. Angelo Maradini

    Android Question Incompatibility with Android11

    I would like to install in Android 11 an app realized with B4A last year. When I install the app from apk, I receive a message like this: " This app was built for an older version of Android and may not work properly. Try checking for updates, or contact the developer." so I set in manifest...
  7. A

    Android Question Android 11 - How to create folder for database backup and storing user files?

    I’m writing an app that needs a folder(s) that can- 1. Store a backup copy of an SQLite database 2. Allow the user to copy CSV files into the folder for import into the database 3. Store PDF files produced by the app for printing by the user. I could see how to do this before Android 11 came...
  8. rleiman

    Android Question [Solved} - Fighting back against Samsung's battery management?

    Greetings, I'm using an unusual title to this thread because we are having a problem with Samsung S10 devices running Android 11. We are not sure if the problem is with Samsung or Android 11 or a combination of both, but it's causing many of our customers to complain that audio on existing...
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