I am developing some simple app with Kivy/Python. I have some problem with displaying images which earlier were saved in android storage via Camera. Below I published a take_shot method which take a picture and save it in /storage/emulated/0/Kalkulator/ dir in android. After that the path to picture will be store in sqlite database.
def take_shot(self,name,when):
if kiedy == 'before':
self.before='/storage/emulated/0/Kalkulator/'+name+when+'.jpg'
camera.take_picture(self.before,self.done(when))
elif kiedy == 'after':
self.after = '/storage/emulated/0/Kalkulator/' + name + when+'.jpg'
camera.take_picture(self.after, self.done(when))
Code below present method used to reading file where data is getting from database. When I try to display file from android storage, kivy displays only black square. When I try to display images from app directory './files/photos/irina.jpg' everything works fine.
if str(data[5])=='Empty':
before=Image(source='./files/photos/irina.jpg',
keep_ratio=True,size_hint= (1,None),height=dp(400))
else:
before = Image(source=str(dane[5]), keep_ratio=True,size_hint=
(1,None),height=dp(400))
if str(data[6]) == 'Empty':
after = Image(source='./files/photos/irina.jpg',
keep_ratio=True,size_hint= (1,None),height=dp(400))
else:
after = Image(source=str(dane[6]), keep_ratio=True,size_hint=
(1,None),height=dp(400))
photos.add_widget(before)
photos.add_widget(after)
self.ids.box.add_widget(photos)
Where is the problem? I don't have any errors in logs.
I saw that kivy don't display any Image with higher resolution.
If you sure it's about picture size, things I guess you can do:
Try to use kivy master branch (use kivy==master in buildozer's requirements) to build apk: bug may be fixed there
Try to use another image provider
(set KIVY_IMAGE to pil).
Try to reduce image size using Pillow.
Report issue on project's github
Ask for help in kivy users support google group