Mapview on Android

Max Bedacht

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Aug 12, 2016, 12:43:02 PM8/12/16

to Kivy users support

I am trying to build a simple example based on the GIT example code. It works fine on Windows once the concurrent.futures and requests are installed.

I tried to run the main.py with the Kivy Launcher with no sucess - couldn't find the mapview import.

I then built an APK with buildozer and tried to run on my phone. It blows up trying to load concurrent.futures:

08-12 13:16:27.467 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/app/main.py", line 6, in <module>

08-12 13:16:27.467 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/garden/__init__.py", line 100, in load_module

08-12 13:16:27.468 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/garden/__init__.py", line 104, in _load_module

08-12 13:16:27.469 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/app/libs/garden/garden.mapview/__init__.py", line 3, in <module>

08-12 13:16:27.470 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/app/libs/garden/garden.mapview/mapview/__init__.py", line 30, in <module>

08-12 13:16:27.470 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/app/libs/garden/garden.mapview/mapview/source.py", line 8, in <module>

08-12 13:16:27.471 I/python (14031): File "/home/kivy/GIT/maptest/.buildozer/android/app/libs/garden/garden.mapview/mapview/downloader.py", line 8, in <module>

08-12 13:16:27.472 I/python (14031): ImportError: No module named concurrent.futures

08-12 13:16:27.497 I/python (14031): Python for android ended.

I tried to install the concurrent.futures on the python installed in the VB image but it seems to have no effect on the resultant APK.

Any pointers to get this running?

Thanks

Rafał Kaczor

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Aug 13, 2016, 4:52:26 PM8/13/16

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Add futures and openssl to requirements in buildozer.spec file (if using Buildozer). Next time check the docs twice :) https://github.com/kivy-garden/garden.mapview

From MapView's Github:

"It requires the concurrent.futures and requests. If you are on python 2.7, you can use futures:

pip install futures requests

If you use it on Android / iOS, don't forget to add openssl as a requirements, otherwise you'll have an issue when importingurllib3 from requests."

All the best with Kivy! :)

Max Bedacht

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Aug 16, 2016, 10:57:05 AM8/16/16

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Thanks - I had read the docs (more than twice) but did not understand fully.

Now I got another question / problem:

I am getting an error when zooming the map which seems to be connected with bad images coming from openstreetmap:

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[WARNING ] [Image ] Unable to load image <cache\26a7511794_19_193479_228088.png>

[INFO ] [Base ] Leaving application in progress...

Traceback (most recent call last):

File "C:/Users/Max/Documents/GIT/fuelchoicenogoog/main.py", line 1712, in <module>

FuelChoiceApp().run()

File "C:\Python27\lib\site-packages\kivy\app.py", line 828, in run

runTouchApp()

File "C:\Python27\lib\site-packages\kivy\base.py", line 487, in runTouchApp

EventLoop.window.mainloop()

File "C:\Python27\lib\site-packages\kivy\core\window\window_sdl2.py", line 619, in mainloop

self._mainloop()

File "C:\Python27\lib\site-packages\kivy\core\window\window_sdl2.py", line 362, in _mainloop

EventLoop.idle()

File "C:\Python27\lib\site-packages\kivy\base.py", line 327, in idle

Clock.tick()

File "C:\Python27\lib\site-packages\kivy\clock.py", line 515, in tick

self._process_events()

File "C:\Python27\lib\site-packages\kivy\clock.py", line 647, in _process_events

event.tick(self._last_tick, remove)

File "C:\Python27\lib\site-packages\kivy\clock.py", line 406, in tick

ret = callback(self._dt)

File "C:\Users\Max\.kivy\garden\garden.mapview\mapview\downloader.py", line 87, in _check_executor

callback(*args)

File "C:\Users\Max\.kivy\garden\garden.mapview\mapview\view.py", line 93, in set_source

self.source = cache_fn

File "kivy\graphics\instructions.pyx", line 360, in kivy.graphics.instructions.VertexInstruction.source.__set__ (kivy\graphics\instructions.c:7210)

File "kivy\graphics\context_instructions.pyx", line 381, in kivy.graphics.context_instructions.BindTexture.source.__set__ (kivy\graphics\context_instructions.c:7367)

File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 512, in __init__

self.filename = arg

File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 700, in _set_filename

mipmap=self._mipmap, nocache=self._nocache)

File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 430, in load

im = loader(filename, **kwargs)

File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 198, in __init__

self._data = self.load(filename)

File "C:\Python27\lib\site-packages\kivy\core\image\img_sdl2.py", line 42, in load

raise Exception('SDL2: Unable to load image')

Exception: SDL2: Unable to load image

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