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Task not serializable: java.io.NotSerializableException when calling function outside closure only o

...rmation code (closure) is: serialized on the driver node, shipped to the appropriate nodes in the cluster, deserialized, and finally executed on the nodes You can of course run this locally (as in your example), but all those phases (apart from shipping over network) still occur. [This lets you ...
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Sending an Intent to browser to open specific URL [duplicate]

...ACTION_VIEW. Source: Opening a URL in Android's web browser from within application share | improve this answer | follow | ...
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How to detect shake event with android?

...nexus has to be a much more violent shake on a galaxy III running the same app. if i make it less sensitive for this device, it'll be too sensitive on something like the nexus. hmmmmmmm. – topwik Jun 19 '13 at 19:57 ...
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How to access data/data folder in Android device?

I am developing an app and I know my database *.db will appear in data/data/com.****.*** 18 Answers ...
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Algorithm to detect corners of paper sheet in photo

... Hi Daniel, thanks for getting involved. I like you approach. its actually the route Im getting good results with at the moment. There was even and OpenCV example what detected the rectangles. Just had to do some filtering on the results. as you were saying the white on white ...
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Django - how to create a file and save it to a model's FileField?

...der. Turns out the issue is that I'm using docker-compose to run my django app along with a celery worker. The django app volume for MEDIA_ROOT was not shared with the same volume in the celery worker. Sharing the named volume fixed it (ref). – shadi May 12 '18...
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iOS 7 UIBarButton back button arrow color

...ler.navigationBar.tintColor = [UIColor whiteColor]; *If you are using an app with more than 1 navigation controller, and you want this chevron color to apply to each, you may want to use the appearance proxy to set the back button chevron for every navigation controller, as follows: [[UINavigatio...
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Best explanation for languages without null

...in the world. The key is not to add more complexity when implementing the mapping between "world states" and "program states" in your software. – Brian Oct 21 '10 at 19:13 ...
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How to create a drop-down list?

...electedListener with this. You can add a strings list from xml There is an appCompat version of this view. More information: This is the basics but there is more to be self taught with experimentation. https://developer.android.com/guide/topics/ui/controls/spinner.html ...
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How do I hide a menu item in the actionbar?

... This is what I've thought of initially, but this crashes the application. – Stir Zoltán May 21 '12 at 21:30 3 ...