How to Import SL4A Libraries

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Hi. I have an android application using PySide and QML. It uses Python27 for 
android. But I can't use this with SL4A. How can I import SL4A libraries into 
python2.7 ? Thanks

Original issue reported on code.google.com by edips...@gmail.com on 6 Feb 2014 at 8:00

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SL4A libraries are packaged in the APK in libs folder (script.jar): 
http://code.google.com/p/android-python27/source/browse/apk/#apk%2Flibs [ see: 
http://code.google.com/p/android-python27/wiki/TutorialHowToUpdateWithLatestSL4A
 ]

On Python side you have android.py in res/raw/python_extras_27.zip which 
bridges your calls to SL4A, e.g.:

import android
droid = android.Android()
droid.makeToast("Hello from PC")

Original comment by anthony....@gmail.com on 6 Feb 2014 at 8:19

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I tryed to import android using adb shell on desktop:
adb shell
su
chmod 755 /data/data/org.modrana.PySideExample/files/python/bin/python
LD_LIBRARY_PATH=/data/data/org.modrana.PySideExample/files/python/lib 
/data/data/org.modrana.PySideExample/files/python/bin/python

It can import android but It give error when I tryed your example:
                                     <
Python 2.7.2 (default, Jul 10 2012, 02:50:07) 
[GCC 4.4.3] on linux3
Type "help", "copyright", "credits" or "license" for more information.
>>> import PySide
>>> import android
>>> droid=android.Android()        
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/data/data/org.modrana.PySideExample/files/python/lib/python2.7/android.py", line 34, in __init__
    self.conn = socket.create_connection(addr)
  File "/home/tsheasha/GUC/Bachelors/android-python27/python-build/build/lib/python2.7/socket.py", line 553, in create_connection
socket.gaierror: [Errno 8] hostname nor servname provided, or not known.

I also tryed this with android device terminal, but got same error. My 
application is based on modrana.org/trac/wiki/PySideForAndroid ,and android.py 
is located res/raw/python_27.zip. It is located 
/data/data/org.modrana.PySideExample/files/python/lib/python2.7/android.py on 
device.
Android/libs have script.jar, locale_platform.jar, libGoogleAnalytics.jar, 
guava-r06.jar in PySİde-android project. 

I also tryed to import PySide in adb shell,

import PySide didnt give any error but

>>> import PySide.QtGui
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: dlopen failed: could not load library "libQtCore.so" needed by 
"QtGui.so"; caused by library "libQtCore.so" not found


PySide library works good with device. Maybe I have mistake using adb shell. So 
maybe SL4A can work too. I didnt test it yet. If I test it, I will report you.

Thank you.

Original comment by edips...@gmail.com on 7 Feb 2014 at 7:23

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I did nou use this tutorial for running 
Python(https://code.google.com/p/android-python27/wiki/TutorialHowToRunPythonfro
mShell), I used thp.io/2011/pyside-android/ for running it.

Regards

Original comment by edips...@gmail.com on 7 Feb 2014 at 7:36

[GoogleCodeExporter]

>socket.gaierror: [Errno 8] hostname nor servname provided, or not known.
>My application is based on modrana.org/trac/wiki/PySideForAndroid

I don't know the modrana app but the error you hit means that the SL4A server 
is not running (the socket cannot connect to the rpc server).

With android-python27 installed, from the command line you run the server with:

{{{
export AP_HOST=localhost
export AP_PORT=45777
am start -a com.android.python27.LAUNCH_RPC_SERVER -n 
com.android.python27/.RpcServerLauncher --ei 
com.android.python27.RPC_SERVER_PORT 45777
}}}

Then droid=android.Android() will work.

When you are in the context of the APK, the server is launched for you with 
(see in 
http://code.google.com/p/android-python27/source/browse/apk/src/com/android/pyth
on27/ScriptService.java):

mProxy = new AndroidProxy(this, null, true);
mProxy.startLocal();

So you would need to replicate one of this in your context.

SL4A scheme is simple, there is a RPC server running, the scripting languages 
send request to this server via sockets (android.py), the server execute native 
Java code and send back the results.

Original comment by anthony....@gmail.com on 7 Feb 2014 at 8:07

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I installed android-python27.apk on Android 4.04, ran this, It worked on 
device. But I couldn't run the app both adb shell and android terminal.
I tryed them:

export AP_HOST=localhost
export AP_PORT=45777

am start -a com.android.python27.LAUNCH_RPC_SERVER -n 
com.android.python27/.RpcServerLauncher --ei 
com.android.python27.RPC_SERVER_PORT 45777

I got this error:

Starting: Intent { act=com.android.python27.LAUNCH_RPC_SERVER 
cmp=com.android.python27/.RpcServerLauncher (has extras) }
Error type 3
Error: Activity class 
{com.android.python27/com.android.python27.RpcServerLauncher} does not exist.

I also applied 
https://code.google.com/p/android-python27/wiki/TutorialHowToRunPythonfromShell
in adb shell:

export PYTHONHOME=/data/data/com.android.python27/files/python
export 
PYTHONPATH=/sdcard/com.android.python27/extras/python:/data/data/com.android.pyt
hon27/files/python/lib/python2.7/lib-dynload:/data/data/com.android.python27/fil
es/python/lib/python2.7
export PATH=$PYTHONHOME/bin:$PATH
export 
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/data/data/com.android.python27/files/python/li
b:/data/data/com.android.python27/files/python/lib/python2.7/lib-dynload

python can work in adb shell, But hello.py didn't work.

cd /data/data/com.android.python27/files/
python hello.py

gave error:

Traceback (most recent call last):
  File "hello.py", line 3, in <module>
    droid = android.Android()
  File "/sdcard/com.android.python27/extras/python/android.py", line 34, in __init__
    self.conn = socket.create_connection(addr)
  File "/home/tony/Desktop/xcross/android-python27/python-build/build/lib/python2.7/socket.py", line 571, in create_connection
socket.error: [Errno 111] Connection refused

Then for testing SL4A API:

export AP_HOST=localhost
export AP_PORT=45777
am start -a com.android.python27.LAUNCH_RPC_SERVER -n 
com.android.python27/.RpcServerLauncher --ei 
com.android.python27.RPC_SERVER_PORT 45777

gave error:

Starting: Intent { act=com.android.python27.LAUNCH_RPC_SERVER 
cmp=com.android.python27/.RpcServerLauncher (has extras) }
Error type 3
Error: Activity class 
{com.android.python27/com.android.python27.RpcServerLauncher} does not exist.

I think problem is connecting SL4A server and RPC server. I installed SL4A and 
Python for android (2.6) and I connected SL4A server so SL4A scripts can work 
with adb shell. (with SL4A wiki)

Original comment by edips...@gmail.com on 15 Feb 2014 at 10:36

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I don't see why this error popup:

"Error: Activity class 
{com.android.python27/com.android.python27.RpcServerLauncher} does not exist."

Can you send me the apk you are using ?

Original comment by anthony....@gmail.com on 15 Feb 2014 at 11:35

[GoogleCodeExporter]

Sorry, not android-python27.apk, I installed PythonAPK.apk:

https://code.google.com/p/android-python27/downloads/detail?name=PythonAPK.apk&c
an=2&q=

Original comment by edips...@gmail.com on 15 Feb 2014 at 1:34

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First I try to learn connection between SL4A server and PythonAPK example. Then 
I will apply to connect this with PySide example.

Pyside apk : http://speedy.sh/MtHmA/PySideExample-1.0.apk

Python source : http://speedy.sh/RWSKU/android-pyside-example-project-master.zip

Regards

Original comment by edips...@gmail.com on 15 Feb 2014 at 2:12

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Also My goal is to use SL4A API in PySide GUI with Python27. Such as GPS 
sensor, bluetooth, etc

Original comment by edips...@gmail.com on 15 Feb 2014 at 2:31

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>Sorry, not android-python27.apk, I installed PythonAPK.apk:

Understood then, this is an old APK, I added RpcServerLauncher later on so you 
just need to build the android-python27.apk from HEAD and use it, then all will 
work as expected.

Original comment by anthony....@gmail.com on 15 Feb 2014 at 2:32

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As I told at 2. comment, I tested SL4A hello world example in PySide Example 
from source, but It didnt worked.

>I added RpcServerLauncher later on so you just need to build the 
android-python27.apk from HEAD and use it, then all will work as expected.

Sorry HEAD means from source? I just know to test PySide projects sources from 
Necessitas or PyDroid. 

Original comment by edips...@gmail.com on 15 Feb 2014 at 2:43

[GoogleCodeExporter]

Try attached new PythonAPK. Don't forget to uninstall previous one before 
installing this one.

Original comment by anthony....@gmail.com on 15 Feb 2014 at 2:46

Attachments:

• PythonAPK_15feb_2014.apk