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ViewDidAppear is not called when opening app from background

I have a View Controller in which my value is 0 (label) and when I open that View Controller from another ViewController I have set viewDidAppear to set value 20 on label. It works fine but when I close my app and than again I open my app but the value doesn't change because viewDidLoad , vie...
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How to get list of all installed packages along with version in composer?

... | edited Sep 16 '16 at 0:20 Machado 3,22033 gold badges2828 silver badges4343 bronze badges answered ...
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Make sure that the controller has a parameterless public constructor error

... 130 What's happening is that you're bitten by this problem. Basically, what happened is that you did...
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Visual Studio debugging/loading very slow

... Here is how I solved the "slow symbol loading" problem in Visual Studio 2012: Go to Tools -> Options -> Debugging -> General CHECK the checkmark next to "Enable Just My Code". Go to Tools -> Options -> Debugging -> Symbols Click on the "..." button and create/select a new folde...
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rmagick gem install “Can't find Magick-config”

...own below when attempting to install the rmagick gem. I am on Snowleopard 10.6 using RVM, Ruby 1.9.2-head and Rails 3.05. Responses to similar questions recommended installing ImageMagick, which I successfully did. Other suggested installing the "libmagick9-dev library", however, I can not figure ou...
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Can Google Chrome open local links?

... answered Jan 23 '10 at 13:01 Thomas BoniniThomas Bonini 39.2k2727 gold badges116116 silver badges152152 bronze badges ...
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can't push to branch after rebase

...--o-----o-----o master \ o-----o-----o devel0 \ o-----o-----o devel1 Then to stay up-to-date with remote I'll do the following: git fetch origin git checkout master git merge --ff origin/master I do this for two reasons. ...
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List attributes of an object

... | edited Apr 20 '10 at 12:50 answered Apr 20 '10 at 12:44 ...
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What are the applications of binary trees?

... answered Feb 4 '10 at 14:58 BlueRaja - Danny PflughoeftBlueRaja - Danny Pflughoeft 72.2k2525 gold badges169169 silver badges251251 bronze badges ...
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c# datatable to csv

... fields)); } File.WriteAllText("test.csv", sb.ToString()); .net >= 4.0 And as Tim pointed out, if you are on .net>=4, you can make it even shorter: StringBuilder sb = new StringBuilder(); IEnumerable<string> columnNames = dt.Columns.Cast<DataColumn>(). ...