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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...
Ignoring new fields on JSON objects using Jackson [duplicate]
I'm using Jackson JSON library to convert some JSON objects to POJO classes on an android application. The problem is, the JSON objects might change and have new fields added while the application is published, but currently it will break even when a simple String field is added, which can safely be...
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...
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...
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.
...
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
...
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 capitalize the first letter of a String in Java?
...makes sure the rest of the string is lower-case. That's what I needed when converting from ALL_CAPS enum names.
– Ellen Spertus
Nov 13 '15 at 17:40
add a comment
...
How do I put a border around an Android textview?
...id:background="@drawable/back"/>
And rectangle drawable back.xml (put into res/drawable folder):
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<solid android:color="@android:color/white" />
<stroke android:width="1dip" androi...