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Return a value from AsyncTask in Android [duplicate]
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Why not call a method that handles the value?
public class MyClass extends Activity {
private class myTask extends AsyncTask<Void, Void, Void> {
//initiate vars
public myTask() {
super();
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What is a Portable Class Library?
....NET Framework 4 must be installed on your machine. This update is automatically installed with Visual Studio 2010 SP1, so you can run the Portable Class Library application without further modification on the computer that you used to develop the application. To run the application on a different c...
Why should I declare a virtual destructor for an abstract class in C++?
.... When they come to delete it, if the destructor is non-virtual, they will call the interface's destructor (or the compiler-provided default, if you didn't specify one), not the derived class's destructor. Instant memory leak.
For example
class Interface
{
virtual void doSomething() = 0;
};
cl...
JavaScript curry: what are the practical applications?
...tself—is useful in JavaScript; it is a technique for converting function calls with multiple arguments into chains of function calls with a single argument for each call, but JavaScript supports multiple arguments in a single function call.
In JavaScript—and I assume most other actual language...
HTML inside Twitter Bootstrap popover
I am trying to display HTML inside a bootstrap popover, but somehow it's not working. I found some answers here but it won't work for me. Please let me know if I'm doing something wrong.
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When is SQLiteOpenHelper onCreate() / onUpgrade() run?
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SQLiteOpenHelper onCreate() and onUpgrade() callbacks are invoked when the database is actually opened, for example by a call to getWritableDatabase(). The database is not opened when the database helper object itself is created.
SQLiteOpenHelper versions the database...
What is the difference between a static and a non-static initialization code block
...java class, and run only one time before the constructor or main method is called.
OK! Tell me more...
is a block of code static { ... } inside any java class. and executed by virtual machine when class is called.
No return statements are supported.
No arguments are supported.
No this or super ar...
How to change column datatype in SQL database without losing data
...d Jul 8 '15 at 3:09
Xyed Xain HaiderXyed Xain Haider
41833 silver badges1414 bronze badges
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What's the idiomatic syntax for prepending to a short python list?
...ubly linked list, which can insert at the beginning and end quickly - it's called a deque.
deque.appendleft
A collections.deque has many of the methods of a list. list.sort is an exception, making deque definitively not entirely Liskov substitutable for list.
>>> set(dir(list)) - set(di...
How do browsers pause/change Javascript when tab or window is not active?
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Test One
I have written a test specifically for this purpose:
Frame Rate Distribution: setInterval vs requestAnimationFrame
Note: This test is quite CPU intensive. requestAnimationFrame is not supported by IE 9- and Opera 12-.
The test logs the actual time it t...