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Why java.io.File doesn't have a close() method?
While java.io.RandomAccessFile does have a close() method java.io.File doesn't. Why is that? Is the file closed automatically on finalization or something?
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iPhone and OpenCV
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OpenCV now (since 2012) has an official port for the iPhone (iOS).
You can find all of OpenCV's releases here.
And find install instructions here:
Tutorials & introduction for the new version 3.x
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Store query result in a variable using in PL/pgSQL
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PL/pgSQL allows mix of SQL and PL - and sometimes you can create really strange creatures, but is better mix PL and SQL cleanly - in isolated statements.
– Pavel Stehule
Sep 8 '12 at 18:54
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appearanceWhenContainedIn in Swift
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Update for iOS 9:
If you're targeting iOS 9+ (as of Xcode 7 b1), there is a new method in the UIAppearance protocol which does not use varargs:
static func appearanceWhenContainedInInstancesOfClasses(containerTypes: [AnyObject.Type]) ...
Maximum concurrent Socket.IO connections
This question has been asked previously but not recently and not with a clear answer.
5 Answers
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git selective revert local changes from a file
...irectory, with the changes you want to keep committed on top.
git reset --mixed HEAD^
This removes the last commit ('tmp'), but keeps the modifications in your working directory, unstaged.
EDIT: replaced --soft with --mixed, to clean up the staging area.
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How does TestFlight do it?
TestFlight offers over-the-air beta distribution of iOS apps (on non-jailbroken devices). How can this be done? Is this an iOS feature, or a vulnerability exploit?
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iOS 7 - How to display a date picker in place in a table view?
...C 2013 video, Apple suggests displaying picker in place in a table view in iOS 7. How to insert and animate a view between table view cells?
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Is there any way to see the file system on the iOS simulator?
...re any way to browse the file system of a currently running or just killed iOS simulator? I'd settle for being able to see a specific app's files if there's a way to do that.
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How do you prevent IDisposable from spreading to all your classes?
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This is basically what happens when you mix Composition or Aggregation with Disposable classes. As mentioned, the first way out would be to refactor the waitHandle out of shoelace.
Having said that, you can strip down the Disposable pattern considerably when you ...