Differences

This shows you the differences between two versions of the page.

--- doc:appunti:prog:kivy [2023/10/06 09:59] – [A Real App With an ActionBar] niccolo
+++ doc:appunti:prog:kivy [2023/10/07 21:53] (current) – [Logging] niccolo
@@ Line 134: / Line 134: @@
 ===== Logging =====
+Like a plain Python program, it is possible for a Kivy app to produce some logging using the Kivy logger. The output will go, by default, to a file created into the app home directory, into the **files/app/.kivy/logs/** directory.
+<code python>
+from kivy.logger import Logger, LOG_LEVELS
+# Set the loglevel. The Android log file will be create into
+# [app_home]/files/app/.kivy/logs/
+Logger.setLevel(LOG_LEVELS['debug'])
+Logger.info('Informative message')
+</code>
+Without root privileges it is not possibile for another Android app (e.g. a file browser) to access the log directory. The Kivy **app home** will be into the adopted SD card, under something like this:
+<code>
+/mnt/expand/[UUID]/user/0/[fully.qualified.app.name]
+</code>
+In older Android versions (e.g. Android 8) the app home directory will be something like:
+<code>
+/data/data/[fully.qualified.app.name]
+</code>
+Every time that the Kivy environment is initializated, a new log file will be created; the filename will be something like **kivy_YY-MM-DD_N.txt**, where YY-MM-DD is the date and N is a progressive integer starting from zero.