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Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?
...time (downside: will only work on fairly recent devices, where -xxhdpi is known).
Option #2: Use Android Asset Studio to downsample them for you.
Option #3: Automate the process within a graphics editor, per ssantos' answer.
Option #4: Script yourself a solution, using something like ImageMagick.
Op...
git:// protocol blocked by company, how can I get around that?
...$ curl http://github.com:9418
curl: (7) couldn't connect to host
OK, so now we have determined it is our git port being blocked by a firewall, what can we do about it? Read on :)
Basic URL Rewriting
Git provides a way to rewrite URLs using git config. Simply issue the following command:
git co...
What does the function then() mean in JavaScript?
...call takes a callback function that is executed when the server
responds.
Now of course the more levels of nesting we have, the harder the code is to read, debug,
maintain, upgrade, and basically work with. This is generally known as callback hell.
Also, if we needed to handle errors, we need to po...
What is PECS (Producer Extends Consumer Super)?
...
tl;dr: "PECS" is from the collection's point of view. If you are only pulling items from a generic collection, it is a producer and you should use extends; if you are only stuffing items in, it is a consumer and you should use super. If you do both with the same collection, you ...
How do you create a static class in C++?
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If you're looking for a way of applying the "static" keyword to a class, like you can in C# for example, then you won't be able to without using Managed C++.
But the looks of your sample, you just need to create a public sta...
How to shorten my conditional statements
...lyfill.
Short explanation of the ~ tilde shortcut:
Update: Since we now have the includes method, there's no point in using the ~ hack anymore. Just keeping this here for people that are interested in knowing how it works and/or have encountered it in other's code.
Instead of checking if th...
How do I choose between Semaphore and SemaphoreSlim?
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One difference is that SemaphoreSlim does not permit named semaphores, which can be system-wide. This would mean that a SemaphoreSlim could not be used for cross-process synchronization.
The MSDN documentation also indicates that...
Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
...saction finishes. Also, not all situations are quite handled- for example, if you try to select from table foo while another transaction is dropping it and creating a replacement table foo, then the blocked transaction will finally receive an error rather than finding the new foo table. (Edit: this ...
What is the difference between a reference type and value type in c#?
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I found it easier to understand the difference of the two if you know how computer allocate stuffs in memory and know what a pointer is.
Reference is usually associated with a pointer. Meaning the memory address where your variable reside is actually holding another memory address of the ...
Browser statistics on JavaScript disabled [closed]
...ree, but I don't think that's the case. Just my opinion, but JavaScript is now a basic language of the web and I think it's time we stopped making excuses to add work for ourselves for an incredibly small minority of people who CHOOSE to limit their experience usually for outdated reasons.
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