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Lambda expression vs method reference [closed]
IntelliJ keeps proposing me to replace my lambda expressions with method references.
2 Answers
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Android basics: running code in the UI thread
...ct.
The difference between the first and the second is that if you happen to be on the main application thread when executing the code, the first one (runOnUiThread()) will execute the Runnable immediately. The second one (post()) always puts the Runnable at the end of the event queue, even if you ...
Pushing read-only GUI properties back into ViewModel
I want to write a ViewModel that always knows the current state of some read-only dependency properties from the View.
6 An...
Which one will execute faster, if (flag==0) or if (0==flag)?
...actually is a user-defined type. Then it depends on which overload of operator== is selected. Of course it can seem stupid that they would not be symmetric, but it's certainly allowed, and I have seen other abuses already.
If flag is a built-in, then both should take the same speed.
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How to handle code when app is killed by swiping in android?
If my app is running and i press home button, the app goes in background. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my servic...
Fast way to get image dimensions (not filesize)
I'm looking for a fast way to get the height and width of an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obv...
Rotating a two-dimensional array in Python
In a program I'm writing the need to rotate a two-dimensional array came up. Searching for the optimal solution I found this impressive one-liner that does the job:
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Fastest way to check if a string matches a regexp in ruby?
What is the fastest way to check if a string matches a regular expression in Ruby?
7 Answers
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EF5: Cannot attach the file ‘{0}' as database '{1}'
...ountering the exact issue as described here (read section "Cannot Attach to Deleted MDF File"), but the solution to the problem is not told there...
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What exactly are DLL files, and how do they work?
How exactly do DLL files work? There seems to be an awful lot of them, but I don't know what they are or how they work.
9 A...