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How to determine height of UICollectionView with FlowLayout

I've got an UICollectionView with an UICollectionViewFlowLayout , and i want to calculate its content size (for return in intrinsicContentSize needed for adjusting its height via AutoLayout). ...
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The purpose of Model View Projection Matrix

... The model, view and projection matrices are three separate matrices. Model maps from an object's local coordinate space into world space, view from world space to camera space, projection from camera to screen. If you compose all three, you...
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Android Location Providers - GPS or Network Provider?

... There are 3 location providers in Android. They are: gps –> (GPS, AGPS): Name of the GPS location provider. This provider determines location using satellites. Depending on conditions, this provider may take a while to return a location fi...
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Insert line break inside placeholder attribute of a textarea?

... a line \nthis should be a new line'); Then you could remove it on focus and apply it back (if empty) on blur. Something like this var placeholder = 'This is a line \nthis should be a new line'; $('textarea').attr('value', placeholder); $('textarea').focus(function(){ if($(this).val() === p...
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Entity Framework: table without primary key

...t to. The number of confusing bugs that could be introduced is staggering and scary, not to mention the fact that your performance will likely go down the tubes. Don't work around this. Fix your data model. EDIT: I've seen that a number of people are downvoting this question. That's fine, I sup...
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How to get a Fragment to remove itself, i.e. its equivalent of finish()?

...ich then bubbles up through onActivityResult() to additionally destroy C and B. 13 Answers ...
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Google Maps API v3: How to remove all markers?

... The markers are still kept in the array though so it will grow larger and larger. Would suggest clearing the array as well after the loop – Ami Oct 5 '12 at 9:08 5 ...
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How can I remove the extension of a filename in a shell script?

... You should be using the command substitution syntax $(command) when you want to execute a command in script/command. So your line would be name=$(echo "$filename" | cut -f 1 -d '.') Code explanation: echo get the value of the variable $filename a...
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Differences between Agda and Idris

I'm starting to dive into dependently-typed programming and have found that the Agda and Idris languages are the closest to Haskell, so I started there. ...
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How do I ignore the initial load when watching model changes in AngularJS?

... set a flag just before the initial load, var initializing = true and then when the first $watch fires, do $scope.$watch('fieldcontainer', function() { if (initializing) { $timeout(function() { initializing = false; }); } else { // do whatever you were going to do } }); Th...