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iOS 6: How do I restrict some views to portrait and allow others to rotate?
I have an iPhone app that uses a UINavigationController to present a drill-down interface: First one view, then another, up to four levels deep. I want the first three views restricted to portrait orientation and only the last view should be allowed to rotate to landscape. When returning from the ...
System.currentTimeMillis vs System.nanoTime
What I would like to know is whether I should use System.currentTimeMillis() or System.nanoTime() when updating my object's positions in my game? Their change in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
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How do I create delegates in Objective-C?
I know how delegates work, and I know how I can use them.
19 Answers
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Negative weights using Dijkstra's Algorithm
I am trying to understand why Dijkstra's algorithm will not work with negative weights. Reading an example on Shortest Paths , I am trying to figure out the following scenario:
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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
I have the following 2 data.frames:
13 Answers
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What is the minimum valid JSON?
I've carefully read the JSON description http://json.org/ but I'm not sure I know the answer to the simple question. What strings are the minimum possible valid JSON?
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nginx error connect to php5-fpm.sock failed (13: Permission denied)
I update nginx to 1.4.7 and php to 5.5.12 , After that I got the 502 error . Before I update everything works fine.
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AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
Using AngularJS if I set a simple input text box value to something like "bob" below. The value does not display if the ng-model attribute is added.
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Unable to open project… cannot be opened because the project file cannot be parsed
I have been working for a while to create an iPhone app. Today when my battery was low, I was working and constantly saving my source files then the power went out...
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How to construct a REST API that takes an array of id's for the resources
I am building a REST API for my project. The API for getting a given user's INFO is:
5 Answers
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