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Android studio, pass assets file path to another method

I am making an app which use the following java line:
Net dnnNet = Dnn.readNetFromONNX("path\to\file");
As you can see, readNetFromONNX requires path to onnx file.
So I put my onnx file under assest folder, so I can use it at run time.
The problem is I you can only read assets foler with AssestManager and inputstream... the readNetFromONNX needs path...
How do I overcome this probelm? Is there a way to get the path of the file at run time? Maybe other folder?
Thanks from advance

Unpack aab resources.pb

I have the .aab that I'm planning to upload on play store for publish, and before publishing I'm trying a decompile to see which data may be exposed to user in a reverse engineering process.
In .aab_FILES/base/ I see the assets.pb and resources.pb protobuffs - can these files be open some in some way? Cause for the moment I haven't found any method to reveal their content.
I am actually looking to see where are values/strings.xml packed - cause they are missing from .aab_FILES/base/res/ location and I wanna make sure my maps API key (which resides in strings.xml) won't be exposed to users.

The resources.pb is a serialization of the strings data, so they can't be directly extracted to xml.
There are 2 ways to go around this:
Convert from aab to apk
Use bundletool to convert the aab to a universal apk and read the xmls from there:
java -jar bundletool-all-1.8.0.jar build-apks --mode=universal --bundle=~/test.aab --output=~/universal.apks
The universal.apks file can now be unzipped. It contains a universal.apk file, which the resources can be taken from like any apk. The easiest way to get readable xml files from the apk is by using apktool:
apktool d ~/unzipped_universal_apks/universal.apk -o ~/unzipped_universal
The folder ~/unzipped_universal now contains the decoded universal.apk and the xml resources should be decoded and readable inside it.
Read the protobuf values directly from the protobuf file
In order to read a protobuf file, you need its scheme (or proto file).
The proto files for an aab are in the aapt2 repository:
Resources.proto which depends on Configuration.proto.
These files can be compiled to workable code in a number of programming languages. I'll show it using python as described here.
First though, the Resources.proto should be modified to import Configuration.proto from the same folder location instead of the original (unless you create the whole necessary folder structure).
So, change:
import "frameworks/base/tools/aapt2/Configuration.proto";
To:
import "Configuration.proto";
Now, in the terminal, run:
protoc --python_out=~/proto_output Configuration.proto Resources.proto
Inside ~/proto_output there will now be 2 files: Configuration_pb2.py Resources_pb2.py.
These files contain the python code to access the protobuf structure for the resources.pb file, as well as the protobuf encoded AndroidManifest.xml.
In order to read the protobuf file run:
from google.protobuf.json_format import MessageToDict
from Resources_pb2 import ResourceTable
res_obj = ResourceTable()
res_pb_file_path = '~/unzipped_app_bundle/base/resources.pb'
with open(res_pb_file_path, 'rb') as f:
content = f.read()
res_obj.ParseFromString(content)
# converting the protobuf object to a nice dictionary representation
res_dict = MessageToDict(res_obj)

Try this given de-compile jar BundleDecompiler
de-compile option:
java -jar BundleDecompiler.jar decompile --in=input_app.aab --out=output_dir

Get config.xml file of Cordova applications using Androguard

Is it possible to get the config.xml file that is generated by Cordova based applications using Adroguard?
I cannot find it under the /res folder and it is not listed in the output of get_files() method.
apktool, on the other hand, is able to get the config.xml from the apk that is use it on.

Since it is under res folder, You need to get it by unzipping the file to a temporary directory and then parse it using Axml parser. In get_files(), you must see "resources.arsc" file. The res files are part of that. You can do something like :
config_xml_path = os.path.join(<your apk unzipped path>, 'res', 'xml', 'config.xml')
with io.open(config_xml_path, 'rb') as axml_file:
parsed_axml_file = AXMLPrinter(axml_file.read())
axml_content = parsed_axml_file.get_buff().decode('utf-8)
parsed_axml = minidom.parseString(axml_content.encode('utf-8'))
You might get some errors if the config.xml is badly formatted but I am not including the solution to handle those case. I hope you will get an idea with the above example.

QPython - Reading a file

I have installed QPython in my Android mobile.
I written a statement in the QEdit to read a text file from the below path
/storage/emulated/0/com.hipipal.qpyplus/script3/File1.txt
I used the below statement
fob=open('/storage/emulated/0/com.hipipal.qpyplus/script3/File1.txt','r')
fob.read()
If I run the statement, it is throwing error as:
IOError:[Errno 2] No such file or directory: '/storage/emulated/0/com.hipipal.qpyplus/script3/File1.txt'
1|uo_a116#cancro:/ $
Is the above statement correct?

fob=open('File1.txt','r')
Is not working in version 1.0.4.
fout=open('File2.txt','w')
Was working on version 0.9.6, but is not working in 1.0.4.
The "error" is Read only file system.
It looks like restrictions in the (new 1.0.4) file system library. I post a mail to the editor, but no answer at this time.

For testing, try to write absolute path to your files pointing, for example, to sdcard (/sdcard/out.txt).
I had problems on this versions (>=1.0.4) because launch process of script changes and execution directory is not the same as script directory.
I had to change my scripts to point to absolute paths.
It was tested with qpython developer.
Check this link:
https://github.com/qpython-android/qpython.org/issues/48

You can also try as simple as:
fob=open('File1.txt','r')
fob.read()
Just if the script is in the same folder of the file.

You can change the current working directory to path with script before read file:
import os
os.chdir(os.path.dirname(os.path.abspath(__file__)))

How can i open .trace file format(traceview) without DDMS?

I want to save a log of method calls.
Traceview supports that function and I can get .trace file format.
but, I need to open .trace file format without DDMS.
If I can't open .trace file without DDMS, How can I get a log of method calls?
(The best is .txt file format.)
thanks.

It is an old thread.
because I found here, so other guys may need this, too.
Try this:
traceview -r yourtrace.trace > 1.txt
and look 1.txt has any useful thing to u.

"traceview" is a command-line utility. You don't need to launch it from DDMS.
If you just want a text file with times and message names, you can use "dmtracedump -o file.trace".

Well for one, you should just use DDMS it's very simple to work with. Even if you don't have eclipse you can use the one that shipped with the SDK. However, if you already have access to the tracefile.trace then you could simply use Traceview from the SDK. Simply open your command prompt and navigate to your android SDK/tools directory as such: cd C:\Program Files\Android\android-sdk\tools. Once there simply type traceview followed by the filename (can omit .trace) as such: traceview C:\Users\Sino\Desktop\Janky_trace_file. This should open your trace file in a GUI representation with functionality to delve into your method calls.

This is simple.
Eclipse: File --> Open file --> open traveview file (xxxx.trace)

If you have a ".trace" file, just use "traceview " from the command line and you should be able to view the content of the file.
You can generate various graphs with the existing .trace file using the command line tool "dmtracedump". http://developer.android.com/tools/help/dmtracedump.html.