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How to save picture to iPhone photo library?
... void *contextInfo);
You only need completionTarget, completionSelector and contextInfo if you want to be notified when the UIImage is done saving, otherwise you can pass in nil.
See the official documentation for UIImageWriteToSavedPhotosAlbum().
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How to programmatically clear application data
I am developing automated tests for an android application (using Robotium). In order to ensure the consistency and reliability of tests, I would like to start each test with clean state (of the application under test). In order to do so, I need to clear the app data. This can be done manually in Se...
The 3 different equals
What is the difference between = , == , and === ?
5 Answers
5
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Most lightweight way to create a random string and a random hexadecimal number
What is the most lightweight way to create a random string of 30 characters like the following?
13 Answers
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How to set dialog to show in full screen? [closed]
I have a GridView and i want to make an implémentation of a dialog, on which
the picture that i have selected should display in full screen.
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How to escape braces (curly brackets) in a format string in .NET
...";
string v = String.Format(" foo {{{0}}}", t);
To output a { you use {{ and to output a } you use }}.
or Now, you can also use c# string interpolation like this (feature available in C# 6.0)
Escaping Brackets: String Interpolation $(""). it is new feature in C# 6.0
var inVal = "1, 2, 3";
var o...
JavaScript hashmap equivalent
...doo.
When using objects as maps, you have to remember that the key will be converted to a string value via toString(), which results in mapping 5 and '5' to the same value and all objects which don't overwrite the toString() method to the value indexed by '[object Object]'. You might also involuntar...
How to get IntPtr from byte[] in C#
... a byte[] to a method takes a IntPtr Parameter in C#, is that possible and how?
8 Answers
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When do we have to use copy constructors?
...ovided copy constructor will break the internal intra-object associations, converting them to inter-object associations.
An example:
struct MarriedMan;
struct MarriedWoman;
struct MarriedMan {
// ...
MarriedWoman* wife; // association
};
struct MarriedWoman {
// ...
MarriedMan*...
Choosing the best concurrency list in Java [closed]
...y thread pool has a fixed number of threads. These threads need to write and read from a shared list frequently.
6 Ans...