Add enable_androidx (#1311)

* Add enable_androidx

buildozer/default.spec

@@ -162,6 +162,11 @@ fullscreen = 0
 # (list) Gradle dependencies to add
 #android.gradle_dependencies =
 
+# (bool) Enable AndroidX support. Enable when 'android.gradle_dependencies'
+# contains an 'androidx' package, or any package from Kotlin source.
+# android.enable_androidx requires android.api >= 28
+#android.enable_androidx = False
+
 # (list) add java compile options
 # this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option
 # see https://developer.android.com/studio/write/java8-support for further information

buildozer/targets/android.py

@@ -1167,6 +1167,13 @@ def build_package(self):
         if wakelock:
             build_cmd += [("--wakelock", )]
 
+        # AndroidX ?
+        enable_androidx = config.getbooldefault('app',
+                                                'android.enable_androidx',
+                                                False)
+        if enable_androidx:
+            build_cmd += [("--enable-androidx", )]
+
         # intent filters
         intent_filters = config.getdefault(
             'app', 'android.manifest.intent_filters', '')