Restore filetype dep, fix Settings label wrapping to 1px column

python_depends was emptied too aggressively in an earlier fix (dodging
the requests/charset-normalizer Android-wheel bug) and took filetype
with it — kivy/core/image imports it directly, causing a startup crash.
Restored just filetype (pure Python, no dependency chain, safe).

Settings popup's info label set text_size=(self.width, None) at
__init__ time, before layout ever runs — self was the Popup at its
default ~100px pre-layout width, not its real on-screen size, so the
label rendered as a 1-character-wide column. Now binds text_size to
the label's own width so it updates once real layout happens.

android/buildozer.spec

@@ -10,14 +10,17 @@ version = 0.1
 requirements = python3,kivy
 
 # Upstream p4a's kivy recipe declares python_depends on requests/certifi/
-# chardet/idna/urllib3/filetype — kivy.network.UrlRequest extras we never
-# call. p4a-recipes/kivy is a copy of that recipe with python_depends
-# emptied out. It's not just cleanup: requests pulls in charset-normalizer,
-# whose newest release ships an Android-tagged wheel; p4a's dependency
-# resolver pins that exact wheel into requirements.txt, then installs it
-# with a plain host pip that has no idea it's an Android wheel, and the
-# build dies on "not a supported wheel on this platform". Dropping the
-# unused chain avoids the bug entirely instead of chasing version pins.
+# chardet/idna/urllib3/filetype — mostly kivy.network.UrlRequest extras we
+# never call, EXCEPT filetype, which kivy/core/image imports directly for
+# real (confirmed by a startup crash when it was dropped too). p4a-recipes/
+# kivy is a copy of that recipe keeping only filetype. It's not just
+# cleanup: requests pulls in charset-normalizer, whose newest release
+# ships an Android-tagged wheel; p4a's dependency resolver pins that exact
+# wheel into requirements.txt, then installs it with a plain host pip that
+# has no idea it's an Android wheel, and the build dies on "not a
+# supported wheel on this platform". Dropping the unused requests chain
+# avoids the bug entirely instead of chasing version pins — filetype has
+# no such transitive dependency and installs cleanly on its own.
 p4a.local_recipes = p4a-recipes
 
 orientation = portrait

android/main.py

@@ -140,12 +140,19 @@ class SettingsPopup(Popup):
         self.on_save = on_save
 
         box = BoxLayout(orientation="vertical", spacing=10, padding=10)
-        box.add_widget(Label(
+        info_label = Label(
             text="Path to the synced event_log.csv on this device "
                  "(check your sync app's configured destination folder):",
             size_hint_y=None, height=80, halign="left", valign="top",
-            text_size=(self.width, None),
-        ))
+        )
+        # text_size can't just be set once here: at __init__ time this Popup
+        # hasn't been laid out yet, so self.width is Kivy's default ~100px
+        # widget width, not the popup's real on-screen size — that's what
+        # was squeezing this label into a thin vertical column. Binding to
+        # the label's own `width` keeps text_size in sync as the box (and
+        # therefore this label, which fills it) actually gets sized.
+        info_label.bind(width=lambda inst, w: setattr(inst, "text_size", (w, None)))
+        box.add_widget(info_label)
         self.path_input = TextInput(text=current_path, multiline=False, size_hint_y=None, height=48)
         box.add_widget(self.path_input)
 

android/p4a-recipes/kivy/__init__.py

@@ -1,10 +1,17 @@
 # Local override of p4a's built-in kivy recipe — identical except
-# python_depends is emptied. See buildozer.spec for why: upstream's
-# ['certifi', 'chardet', 'idna', 'requests', 'urllib3', 'filetype'] pulls
-# in requests -> charset-normalizer, whose newest release ships an
-# Android-tagged wheel that p4a's own install step can't actually install
-# (see comment in buildozer.spec). We never call kivy.network.UrlRequest,
-# so dropping the whole chain is correct, not just a workaround.
+# python_depends is trimmed. See buildozer.spec for the full story:
+# upstream's ['certifi', 'chardet', 'idna', 'requests', 'urllib3',
+# 'filetype'] pulls in requests -> charset-normalizer, whose newest
+# release ships an Android-tagged wheel that p4a's own install step
+# can't actually install.
+#
+# 'filetype' is kept — it's NOT part of that broken chain (zero deps of
+# its own, no requests/charset-normalizer involved) and it's a genuine
+# runtime dependency: kivy/core/image/__init__.py imports it directly
+# for image format sniffing, unlike the other five which are only for
+# kivy.network.UrlRequest (which this app never calls). Confirmed the
+# hard way — dropping it too caused a startup crash on-device:
+#   ModuleNotFoundError: No module named 'filetype'
 from os.path import join
 import sys
 import packaging.version
@@ -41,7 +48,7 @@ class KivyRecipe(PyProjectRecipe):
     name = 'kivy'
 
     depends = [('sdl2', 'sdl3'), 'pyjnius', 'setuptools', 'android']
-    python_depends = []  # upstream: ['certifi', 'chardet', 'idna', 'requests', 'urllib3', 'filetype'] — unused, see buildozer.spec
+    python_depends = ['filetype']  # upstream also had: 'certifi', 'chardet', 'idna', 'requests', 'urllib3' — unused, see buildozer.spec
     hostpython_prerequisites = ["cython>=0.29.1,<=3.0.12"]
 
     # sdl-gl-swapwindow-nogil.patch is needed to avoid a deadlock.