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How to change position of Toast in Android?
... centered horizontally. You can change this position with the
setGravity(int, int, int) method. This accepts three parameters: a
Gravity constant, an x-position offset, and a y-position offset.
For example, if you decide that the toast should appear in the
top-left corner, you can set the...
using lodash .groupBy. how to add your own keys for grouped output?
...rt groupBy from "lodash/fp/groupBy";
const map = require('lodash/fp/map').convert({ 'cap': false });
const result = flow(
groupBy('color'),
map((users, color) => ({color, users})),
tap(console.log)
)(input)
Where input is an array that you want to convert.
...
What's the rationale for null terminated strings?
... pointers can do.
the core language just include minimal syntaxic sugar to convert
something between double quotes to a
bunch of chars (really a bunch of
bytes). In some cases it can be used
to initialize things completely
unrelated with text. For instance xpm
image file format is a valid C source
t...
Why Choose Struct Over Class?
...perhaps encapsulating a start property and a length property, both of type Int.
A point in a 3D coordinate system, perhaps encapsulating x, y and z properties, each of type Double.
In all other cases, define a class, and create instances of that class
to be managed and passed by referenc...
Should one use < or
...thing 1-based (e.g. JDBC, IIRC) I might be tempted to use <=. So:
for (int i=0; i < count; i++) // For 0-based APIs
for (int i=1; i <= count; i++) // For 1-based APIs
I would expect the performance difference to be insignificantly small in real-world code.
...
What is the Scala annotation to ensure a tail recursive function is optimized?
....
import scala.annotation.tailrec
class Factorial2 {
def factorial(n: Int): Int = {
@tailrec def factorialAcc(acc: Int, n: Int): Int = {
if (n <= 1) acc
else factorialAcc(n * acc, n - 1)
}
factorialAcc(1, n)
}
}
And it works from the REPL (example from the Scala...
C++ catch blocks - catch exception by value or reference? [duplicate]
...e. If a MyException type was thrown your catch block would cause it to be converted to a CustomException instance which would cause the error code to change.
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Get visible items in RecyclerView
....
If you are using LinearLayoutManager or GridLayoutManager, you can use
int findFirstVisibleItemPosition();
int findFirstCompletelyVisibleItemPosition();
int findLastVisibleItemPosition();
int findLastCompletelyVisibleItemPosition();
For example:
GridLayoutManager layoutManager = ((GridLayoutM...
How to shuffle a std::vector?
...I currently do it, but I think it's not very efficient because it needs an intermediate array and it needs to know the item type (DeckCard in this example):
...
Bring a window to the front in WPF
...
Great hint! TopMost makes the magic happen on Windows 7 if the window is already open, but below the other windows.
– gsb
Sep 29 '12 at 18:37
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