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install / uninstall APKs programmatically (PackageManager vs Intents)
My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
Trigger change() event when setting 's value with val() function
What is the easiest and best way to trigger change event when setting the value of select element.
5 Answers
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Java Class that implements Map and keeps insertion order?
...or most cases; TreeMap has O(log n) performance for containsKey, get, put, and remove, according to the Javadocs, while LinkedHashMap is O(1) for each.
If your API that only expects a predictable sort order, as opposed to a specific sort order, consider using the interfaces these two classes implem...
abort: no username supplied (see “hg help config”)
I have added repository and at the time of commit I get error as
6 Answers
6
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How can I fill a div with an image while keeping it proportional?
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If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you.
.fill {
display: flex;
justify-content: center;
align-it...
How to debug a GLSL shader?
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Why would you want to debug anything? Because its code and he wants to examine run time values I would hazard....
– RichieHH
Aug 31 '15 at 10:57
3
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What is the good python3 equivalent for auto tuple unpacking in lambda?
...just to unfold the parameters - but that would be at once more inefficient and harder to read than your two suggestions:
min(points, key=lambda p: (lambda x,y: (x*x + y*y))(*p))
update Python 3.8
As of now, Python 3.8 alpha1 is available, and PEP 572- assignment expressions are implemented.
So,...
Example for boost shared_mutex (multiple reads/one write)?
I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
Do you need to close meta and link tags in HTML?
I was just reading somebody's HTML who never closed meta and link tags in the HTML head section. The code worked fine; is closing these tags optional?
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How do I create a SQL table under a different schema?
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Right-click on the tables node and choose New Table...
With the table designer open, open the properties window (view -> Properties Window).
You can change the schema that the table will be made in by choosing a schema in the properties window.
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