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Difference between add(), replace(), and addToBackStack()
...n a activity.
You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities. This is essentially useful when you have defined your fragment container at different layouts. You just need to replace with any other fragment in any layout.
...
Real World Example of the Strategy Pattern
...e uses the strategy pattern in the Unit-test part of the application
He builds a website which has a page that displays items based on popularity. However "Popular" can be many things (most views, most subscribers, creation date, most activity, least amount of comments, etc), and in case managemen...
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
...l occur after onStop() for applications targeting platforms starting with Build.VERSION_CODES.P. For applications targeting earlier platform versions this method will occur before onStop() and there are no guarantees about whether it will occur before or after onPause().
...
How can I make my own event in C#?
...
@Richard: Not quite; you need to handle the case where there are no subscribers, so the delegate reference will be null.
– Jon Skeet
Sep 28 '12 at 11:48
...
Is it possible to override the configuration of a plugin already defined for a profile in a parent P
...ofiles but overrides them. If you define the same plugin directly in the build section it works. For Maven3 it resolved as expected.
– Greg Domjan
Mar 1 '13 at 19:46
...
“PKIX path building failed” and “unable to find valid certification path to requested target”
...idator.ValidatorException and sun.security.provider.certpath.SunCertPathBuilderException . Then I added twitter certificate by:
...
Shall we always use [unowned self] inside closure in Swift
...losure block will also go away at the same time.
class MyViewController: UIViewController {
@IBOutlet weak var myButton: UIButton!
let networkManager = NetworkManager()
let buttonPressClosure: () -> Void // closure must be held in this class.
override func viewDidLoad(...
CSS: bolding some text without changing its container's size
... 1px black;}
Here's a working example:
body {
font-family: segoe ui;
}
ul li {
display: inline-block;
border-left: 1px solid silver;
padding: 5px
}
.textshadow :hover {
text-shadow: 0px 0px 1px black;
}
.textshadow-alt :hover {
text-shadow: 1px 0px 0px black;
}
...
How to post pictures to instagram using API
I am building a php application which needs to post the user uploaded picture directly to Instagram, but after a quick search i found that there is no such function in the API :( and it feels weird... because they should provide one. I am not sure if there is any other way (except the apps for andro...
What does the LayoutInflater attachToRoot parameter mean?
...e.
inflater.inflate(child,parent,false);
parent.addView(child);
is equivalent to
inflater.inflate(child,parent,true);
A BIG NO-NO
You should never pass attachToRoot as true when you are not responsible for adding the child view to parent.
Eg When adding Fragment
public View onCreateView(L...