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getViewTypeCount and getItemViewType methods of ArrayAdapter
...urn 0 or 1 or 2 from the getItemViewType() method, like a zero-based array index. And as you have three types of views used,
your getViewTypeCount() method must return 3.
In any case if you return any other integer values like 1, 2, 3 or 111, 222, 333 for this method you definitely might experience...
Looping in a spiral
...ition in a squared spiral : Fiddle
function spiral(n) {
// given n an index in the squared spiral
// p the sum of point in inner square
// a the position on the current square
// n = p + a
var r = Math.floor((Math.sqrt(n + 1) - 1) / 2) + 1;
// compute radius : inverse arit...
C# Lazy Loaded Automatic Properties
... 4.0 Lazy<T> type to create this pattern
private Lazy<string> _someVariable =new Lazy<string>(SomeClass.IOnlyWantToCallYouOnce);
public string SomeVariable => _someVariable.Value;
This code will lazily calculate the value of _someVariable the first time the Value expression i...
What breaking changes are introduced in C++11?
...nity, whereas C++0x always rounds the result toward 0.
(admittedly not really a compatibility problem for most people).
Valid C++ 2003 code that uses the keyword auto as a storage class specifier may be invalid in C++0x.
Narrowing conversions cause incompatibilities with C++03. For ex...
When to use inline function and when not to use it?
...at inline is a hint or request to compiler and its used to avoid function call overheads.
14 Answers
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Get the _id of inserted document in Mongo database in NodeJS
...ection.insert that will return the doc or docs inserted, which should have _ids.
Try:
collection.insert(objectToInsert, function(err,docsInserted){
console.log(docsInserted);
});
and check the console to see what I mean.
...
SQL Server database backup restore on lower version
...R2 or
restore the backup you have on a SQL Server 2008 R2 instance, export all the data and import it on a SQL Server 2008 database.
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What does Docker add to lxc-tools (the userspace LXC tools)?
... containers is a bit like trying to use Git with just commands like update-index and read-tree, without familiar tools like add, commit, and merge. Docker provides that layer of "porcelain" over the "plumbing" of LXC, enabling you to work with higher level concepts and worry less about the low-level...
Forgot “git rebase --continue” and did “git commit”. How to fix?
...ter to its parent but keeps the work tree and adds the merge change to the index. So you can continue rebasing with git rebase --continue as before.
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MySQL: What's the difference between float and double?
...00002 | 1.6900000000 |
This is using MySQL 6.7
Query:
SELECT
float_1 + float_2 as 'float add',
double_1 + double_2 as 'double add',
decimal_1 + decimal_2 as 'decimal add',
float_1 * float_2 as 'float multiply',
double_1 * double_2 as 'double multiply',
decimal_1 * decim...