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Collections.emptyList() vs. new instance

...ntly. In addition, emptyList() might not create a new object with each call. Implementations of this method need not create a separate List object for each call. Using this method is likely to have comparable cost to using the like-named field. (Unlike this method, the field does not provide ...
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Dilemma: when to use Fragments vs Activities:

.... In the beginning this will not have any sense, but in time, you will actually be able to tell if you need Fragment or not. There is a good practice I found very helpful for me. It occurred to me while I was trying to explain something to my daughter. Namely, imagine a box which represents a sc...
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Fit background image to div

...is the most appropriated one. Source: http://www.w3schools.com/cssref/css3_pr_background-size.asp share | improve this answer | follow | ...
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What Android tools and methods work best to find memory/resource leaks? [closed]

...e for bitmaps. Bitmaps on the previous activity layout are not properly deallocated by the garbage collector because they have crossed references to their activity. After many experiments I found a quite good solution for this problem. First, set the “id” attribute on the parent view of your X...
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`require': no such file to load — mkmf (LoadError)

I was trying to install rails on Ubuntu Natty Narwhal 11.04, using ruby1.9.1. 10 Answers ...
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Set cURL to use local virtual hosts

... Actually, curl has an option explicitly for this: --resolve Instead of curl -H 'Host: yada.com' http://127.0.0.1/something use curl --resolve 'yada.com:80:127.0.0.1' http://yada.com/something What's the difference, you ask? A...
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How to initialize an array's length in JavaScript?

... Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty. Some tests show that settin...
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How to copy files from 'assets' folder to sdcard?

I have a few files in the assets folder. I need to copy all of them to a folder say /sdcard/folder. I want to do this from within a thread. How do I do it? ...
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]

...impler than regular expressions and splitting className into parts and manually traversing them. – Victor Zamanian Feb 12 '13 at 23:16 23 ...
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How to print the values of slices

... ¯\_(ツ)_/¯ If you find short solution please add it as an answer to this question. I’m betting that is what most people are looking for. – Pylinux Dec 7 '19 at 14:03 ...