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How do I get a file's directory using the File object?
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File API File.getParent or File.getParentFile should return you Directory of file.
Your code should be like :
File file = new File("c:\\temp\\java\\testfile");
if(!file.exists()){
file = file.getParentFile();
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UIRefreshControl on UICollectionView only works if the collection fills the height of the container
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You must check in api call if collection view is in refreshing state then end refreshing to dismiss refreshing control.
private let refreshControl = UIRefreshControl()
refreshControl.tintColor = .white
refreshControl.addTarget(self, actio...
How to make layout with rounded corners..?
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For API 21+, Use Clip Views
Rounded outline clipping was added to the View class in API 21. See this training doc or this reference for more info.
This in-built feature makes rounded corners very easy to implement. It works on ...
Finding index of character in Swift String
... problem that it hides the semantics of string access. Imagine creating an API for accessing linked lists that looks just like the API for an array. People would like write horribly inefficient code.
– Erik Engheim
Nov 21 '14 at 12:48
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jquery live hover
...t work. see the "Multiple Events" header under the documentation for live: api.jquery.com/live
– Jason
Jul 9 '10 at 19:56
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Add new value to an existing array in JavaScript [duplicate]
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Array is a JavaScript native object, why don't you just try to use the API of it? Knowing API on its own will save you time when you will switch to pure JavaScript or another framework.
There are number of different possibilities, so, use the one which mostly targets your needs.
Creating arra...
What is the benefit of using Fragments in Android, rather than Views?
...n developing for Android , you can set your target (or minimum) sdk to 4 (API 1.6) and add the android compatibility package (v4) to add support for Fragments . Yesterday I did this and successfully implemented Fragments to visualize data from a custom class.
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Multiply TimeSpan in .NET
...will arrive in .NET Standard 2.1:
https://docs.microsoft.com/en-us/dotnet/api/system.timespan.op_multiply?view=netstandard-2.1
var result = 3.0 * TimeSpan.FromSeconds(3);
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Create ArrayList from array
...m to throw an UnsupportedOperationException. docs.oracle.com/javase/7/docs/api/java/util/… Admittedly, from an object-oriented perspective it is not very nice that many times you have to know the concrete implementation in order to use a collection - this was a pragmatic design choice in order to...
When to use window.opener / window.parent / window.top
...be found here:
window.opener
https://developer.mozilla.org/en-US/docs/Web/API/Window.opener
I've used window.opener mostly when opening a new window that acted as a dialog which required user input, and needed to pass information back to the main window. However this is restricted by origin polic...