JavaException: JVM exception occured

[brousch]

I get a JVM error while trying to create a Toast. Example code from Kivy Remote:

from jnius import autoclass
AndroidString = autoclass('java.lang.String')
PythonActivity = autoclass('org.renpy.android.PythonActivity')
Toast = autoclass('android.widget.Toast')
msg = AndroidString("Hello, world!".encode('utf-8'))
toast = Toast.makeText(PythonActivity.mActivity, msg, Toast.LENGTH_SHORT)
CHECK FOR org/renpy/android/PythonActivity android/content/Context True
CHECK FOR java/lang/String java/lang/CharSequence True
Traceback (most recent call last):
File "", line 1, in
File "jnius_export_class.pxi", line 751, in jnius.jnius.JavaMultipleMethod.call (jnius/jnius.c:14919)
File "jnius_export_class.pxi", line 508, in jnius.jnius.JavaMethod.call (jnius/jnius.c:12495)
File "jnius_export_class.pxi", line 665, in jnius.jnius.JavaMethod.call_staticmethod (jnius/jnius.c:13745)
File "jnius_utils.pxi", line 40, in jnius.jnius.check_exception (jnius/jnius.c:1855)
JavaException: JVM exception occured

[tito]

I didn't retry, but the JVM exception is... a jvm exception that Pyjnius cannot do anything about it.

You need to check the log, and see what Android tell you about your error. I guess that you cannot make toast outside the ui thread. (ui thread != python thread on android). You might need to use a Runnable object for that.

Have a look at http://python-for-android.readthedocs.org/en/latest/android/#module-android.runnable

[salibeh]

Ben, have you ever solved this issue. Thanks Emil

[brousch]

There is an example of using Toasts with Pyjnius at
https://github.com/knappador/kivy-toaster

On Mon, May 12, 2014 at 6:37 AM, Emil Salib notifications@github.comwrote:

Ben, have you ever solved this issue. Thanks Emil

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/60#issuecomment-42817492
.

Ben Rousch
brousch@gmail.com
http://clusterbleep.net/