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How to check if a file exists in Documents folder?
... In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.
7 Answers
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How do I filter query objects by date range in Django?
... in this case i use: date__range=["%s-%s-1"%(year,month),"%s-%s-1"%(year,int(month)+1)]
– SpiRail
Sep 1 '16 at 13:03
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Flatten an irregular list of lists
...work with things that aren't lists initially, e.g. for i in flatten(42): print (i). This could be fixed by moving the isinstance-test and the else-clause outside of the for el-loop. (Then you could throw anything at it, and it would make a flattened list out of it)
– RolKau
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Getting reference to the top-most view/window in iOS application
... I'm getting (null) in my iOS-8 app (storyboards issue?) Any hints? Thanks! (Note: (null) returned both at viewDidLoad and viewWillAppear: time. viewDidAppear: is too late.
– Olie
Feb 26 '15 at 18:29
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Image, saved to sdcard, doesn't appear in Android's Gallery app
... after my 'save to sdcard' code that fixed the problem:
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
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QLabel: set color of text and background
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Thank you for pointing out that the autoFillBackground is a key issue here. The accepted answer above does not work without that setting.
– BSD
Apr 4 '18 at 21:45
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What does multicore assembly language look like?
...r-SIPI. As part of its initialization, the primary thread sends a special inter-processor-interrupt (IPI) over the APIC called a SIPI (Startup IPI) to each thread that is in WFS. The SIPI contains the address from which that thread should start fetching code.
This mechanism allows each thread to ...
How to programmatically set style attribute in a view
.... That's why I would like to set style dynamicly.
– Lint_
Jan 7 '10 at 8:42
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Well you can't chan...
Force line-buffering of stdout when piping to tee
Usually, stdout is line-buffered. In other words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
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Android - Back button in the title bar
...you tap a button and enter a new activity, the icon in the title bar turns into a back button, but for the app I am making, it doesn't do that. How do I make that icon take you back to the previous screen?
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