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How can I parse a local JSON file from assets folder into a ListView?
... }
Log.e("data", json);
return json;
}
Now for parsing data in your activity:-
String data = getAssetJsonData(getApplicationContext());
Type type = new TypeToken<Your Data model>() {
}.getType();
<Your Data model> modelObject = new G...
Difference between std::result_of and decltype
...f a deduction failure. That has been corrected in C++14: std::result_of is now required to be SFINAE-friendly (thanks to this paper).
So on a conforming C++14 compiler, std::result_of_t<F(Args...)> is strictly superior. It's clearer, shorter, and correctly† supports more Fs‡ .
†Unless...
What is the native keyword in Java for?
...212:
protected native Object clone() throws CloneNotSupportedException;
Now comes the hard part, finding where clone is amidst all the indirection. The query that helped me was:
find . -iname object.c
which would find either C or C++ files that might implement Object's native methods. It leads...
SQLite add Primary Key
... CREATE TABLE AS syntax to create a table based on a SELECT statement. Now this table has no primary key but I would like to add one.
...
How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...suffixes as well, by hash-consing.
Advantages of hashtables:
Everyone knows hashtables, right? Your system will already have a nice well-optimized implementation, faster than tries for most purposes.
Your keys need not have any special structure.
More space-efficient than the obvious linked tri...
Pip install Matplotlib error with virtualenv
...le
sudo apt-get install pkg-config
will shore up the include paths for now.
After this installation proceeds smoothly.
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CSS to set A4 paper size
...ed under the @page rule causes the same issue).
So not only the content is now too long for the page (by about 2cm), but also the page padding will be slightly more than the initial 2cm and so on (it seems to render the contents under width: auto to the width of ~196mm and then scale the whole conte...
Proper use of beginBackgroundTaskWithExpirationHandler
...
I've now provided this as a github project: github.com/mattneub/BackgroundTaskOperation
– matt
May 3 '19 at 19:25
...
Are loops really faster in reverse?
...o be slower than the original one. When optimizing, always measure so you know exactly what impact your changes had.
– jalf
Oct 30 '12 at 11:59
1
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How do I force Postgres to use a particular index?
...om_page_cost = 1;
EXPLAIN <query>; # May use index scan now
You can restore the default value with SET random_page_cost = DEFAULT; again.
Background
Index scans require non-sequential disk page fetches. Postgres uses random_page_cost to estimate the cost of such non-sequential...