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What does @hide mean in the Android source code?
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Android has two types of APIs that are not accessible via SDK.
The first one is located in package com.android.internal. The second API type is a collection of classes and methods that are marked with the @hide Javadoc attribute.
Starting from Android 9 (API level 28), Google introduces new res...
What is PECS (Producer Extends Consumer Super)?
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Hey everyone. I'm Andrey Tyukin, I just wanted to confirm that anoopelias & DaoWen contacted me and obtained my permission to use the sketch, it's licensed under (CC)-BY-SA. Thx @ Anoop for giving it a second life^^ @Brian Agnew:...
how to provide a swap function for my class?
...ec3<double> b;
vec3<int> c;
if you want to be able to create one function to implement all 3 swaps (not that this example class warrants it) you do just like Xeo said in (2)... without specialization but just make a regular template function:
template <class T>
void swap(vec3<...
What is a proper naming convention for MySQL FKs?
...s different.
in my opinion, a table should have an id field, not a user_id one, because table is just called user, so:
CREATE TABLE users(
id int,
name varchar(100)
);
CREATE TABLE messages(
id int,
user_id int
);
user_id in messages table is a fk field so it has to make ...
What is the difference between trie and radix trie data structures?
..., than a tree, as you'll see), which was included in Sedgewick's book mentioned below:
A more complex PATRICIA algorithm involving keys of variant length is possible, though some of the technical properties of PATRICIA are lost in the process (namely that any node contains a common prefix with th...
Determining type of an object in ruby
...t is of type ClassName or derived from it.
Normally type checking is not done in Ruby, but instead objects are assessed based on their ability to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular ...
Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT
...N_DOCUMENT is not intended to be a replacement for ACTION_GET_CONTENT. The one you should use depends on the needs of
your app:
Use ACTION_GET_CONTENT if you want your app to simply read/import
data. With this approach, the app imports a copy of the data, such as
an image file.
Use ACTION_OPEN_DOCUM...
Python Logging (function name, file name, line number) using a single file
...Have a look at inspect - Inspect live objects for more details.
As I mentioned in my comment earlier, you can also drop into a pdb interactive debugging prompt at any time by inserting the line import pdb; pdb.set_trace() in, and re-running your program. This enables you to step through the code, i...
What's the complete range for Chinese characters in Unicode?
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Could the one who has downvoted this answer please tell me the reason?
– Lerner Zhang
Feb 27 '17 at 6:52
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What are the security risks of setting Access-Control-Allow-Origin?
...low-Origin: * on them? There will be no nogin etc, they are public to everyone?
– Umut Benzer
Jun 27 '13 at 7:14
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