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What is the AppDelegate for and how do I know when to use it?

... I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normall...
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Refresh Fragment at reload

...ginTransaction(); if (Build.VERSION.SDK_INT >= 26) { ft.setReorderingAllowed(false); } ft.detach(this).attach(this).commit(); share | improve this answer | follow ...
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How to disable scrolling in UITableView table when the content fits on the screen

...h, not subclassed from UITableViewController ) that 80% of the time are small and will fit on the screen. When the table fits on the screen, I'd like to disable scrolling, to make it a bit cleaner. But if the table goes off the screen (when rows are later added to it), I'd like to enable scrollin...
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RegEx to parse or validate Base64 data

... The simplest solution would be to strip out all whitespace (which is ignored as per the RFC) before validation. – Ben Blank Jan 24 '09 at 1:35 2 ...
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Why does dividing two int not yield the right value when assigned to double?

... to explicitly convert both a and b to double simply for clarity, but it really doesn't matter. – John Dibling Sep 27 '11 at 15:31 ...
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Linq: What is the difference between Select and Where

...rable<A> in, IEnumerable<A> out Select returns something for all items in the source (projection / transformation). That something might be the items themselves, but are more usually a projection of some sort. -> IEnumerable<A> in, IEnumerable<B> out ...
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CSS: how do I create a gap between rows in a table?

... All you need: table { border-collapse: separate; border-spacing: 0 1em; } That assumes you want a 1em vertical gap, and no horizontal gap. If you're doing this, you should probably also look at controlling your li...
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Why does the JVM still not support tail-call optimization?

Two years after does-the-jvm-prevent-tail-call-optimizations , there seems to be a prototype implementation and MLVM has listed the feature as "proto 80%" for some time now. ...
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How should I cast in VB.NET?

Are all of these equal? Under what circumstances should I choose each over the others? 7 Answers ...
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Can code that is valid in both C and C++ produce different behavior when compiled in each language?

C and C++ have many differences, and not all valid C code is valid C++ code. (By "valid" I mean standard code with defined behavior, i.e. not implementation-specific/undefined/etc.) ...