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Changing navigation bar color in Swift

I am using a Picker View to allow the user to choose the colour theme for the entire app. 30 Answers ...
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Postgis installation: type “geometry” does not exist

I am trying to create table with Postgis. I do it by this page . But when I import postgis.sql file, I get a lot of errors: ...
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Android - startActivityForResult immediately triggering onActivityResult

I am launching activities from the main activity in my app using the call startActivityForResult(intent, ACTIVITY_TYPE) , and they are all working but one. ...
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Copy constructor versus Clone()

In C#, what is the preferred way to add (deep) copy functionality to a class? Should one implement the copy constructor, or rather derive from ICloneable and implement the Clone() method? ...
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ListView inside ScrollView is not scrolling on Android

I am having trouble with a scrolling ListView inside a ScrollView . I have an Activity which has some EditTexts in the top part and then a tab host with two tabs which have one ListView each. When the EditText views are focused, the soft keyboard comes up and as I have a ScrollView, the content ...
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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

Why am I getting this database error when I update a table? 14 Answers 14 ...
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How do I test a private function or a class that has private methods, fields or inner classes?

How do I unit test (using xUnit) a class that has internal private methods, fields or nested classes? Or a function that is made private by having internal linkage ( static in C/C++) or is in a private ( anonymous ) namespace? ...
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Regex Pattern to Match, Excluding when… / Except between

--Edit-- The current answers have some useful ideas but I want something more complete that I can 100% understand and reuse; that's why I set a bounty. Also ideas that work everywhere are better for me than not standard syntax like \K ...
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Code for a simple JavaScript countdown timer?

I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded? ...
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How to replace plain URLs with links?

I am using the function below to match URLs inside a given text and replace them for HTML links. The regular expression is working great, but currently I am only replacing the first match. ...