Updates

- android storage assignment
- build instructions

buildozer/build-instructions.txt

@@ -78,4 +78,10 @@ test notes:
 3) built apks worked on android 7 and android 8.
    (no newer devices had been available)
 
-LB221118.
+4) on fdroid, that provided a light weight build server
+   with debian bullseye the following additional packages had
+   to be installed (apt-get):
+   - ant autoconf build-essential ccache gettext imagemagick
+   - libffi-dev libltdl-dev libssl-dev libtool python3-tk
+   - virtualenv wget zlib1g-dev
+

buildozer/buildozer.spec

@@ -151,7 +151,7 @@ android.api = 32
 
 # (str) Extra xml to write directly inside the <manifest><application> tag of AndroidManifest.xml
 # use that parameter to provide a filename from where to load your custom XML arguments:
-#android.extra_manifest_application_arguments = ./src/android/extra_manifest_application_arguments.xml
+android.extra_manifest_application_arguments = ./src/manifest/extra_attributes.xml
 
 # (str) Full name including package path of the Java class that implements Python Service
 # use that parameter to set custom Java class instead of PythonService

buildozer/src/manifest/extra_attributes.xml

@@ -0,0 +1 @@
+android:requestLegacyExternalStorage="true"

pysollib/mfxutil.py

@@ -140,10 +140,12 @@ def getprefdir(package):
         plat = get_platform()
         if plat == 'android':
             from pysollib.kivy.androidperms import getStoragePerm
+            from android.storage import primary_external_storage_path
+            from android.storage import app_storage_path
             if getStoragePerm():
-                os.environ['HOME'] = '/sdcard'
+                os.environ['HOME'] = primary_external_storage_path()
             else:
-                os.environ['HOME'] = '.'
+                os.environ['HOME'] = app_storage_path()
 
     if os.name == "nt":
         return win32_getprefdir(package)