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how to implement a pop up dialog box in iOS

...isplay a pop up or alert box conveying a message to the user. Does anyone know where I can find more information about this? ...
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Extending from two classes

...nterface BarInterface { public int methodC(int i); //... } And now make Foo and Bar implement the relative interfaces: public class Foo implements FooInterface { /*...*/ } public class Bar implements BarInterface { /*...*/ } Now, with class FooBar, you can implement both FooInterface...
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Is there a list of Pytz Timezones?

I would like to know what are all the possible values for the timezone argument in the Python library pytz. How to do it? 7...
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How do I make an attributed string using Swift?

...y.underlineStyle] = NSUnderlineStyle.double.rawValue Attributed Strings Now that you understand attributes, you can make attributed strings. Initialization There are a few ways to create attributed strings. If you just need a read-only string you can use NSAttributedString. Here are some ways t...
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Python, creating objects

I'm trying to learn python and I now I am trying to get the hang of classes and how to manipulate them with instances. 4 An...
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How do I make JavaScript beep?

... Solution You can now use base64 files to produce sounds when imported as data URI. The solution is almost the same as the previous ones, except you do not need to import an external audio file. function beep() { var snd = new Audio("data...
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pandas GroupBy columns with NaN (missing) values

... from pandas 1.1 you have better control over this behavior, NA values are now allowed in the grouper using dropna=False share | improve this answer | follow |...
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Installing libv8 gem on OS X 10.9+

...f libv8 in the project I'm working on. I'll be downgrading to OSX 10.8 for now! – tanookiben Oct 25 '13 at 19:41 36 ...
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How to use Class in Java?

... what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s. However, what stumps me is the usage of Class<> . ...
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UIButton inside a view that has a UITapGestureRecognizer

...ther view appears above this view. This new view has three buttons. When I now press on one of these buttons I don't get the buttons action, I only get the tap gesture action. So I'm not able to use these buttons anymore. What can I do to get the events through to these buttons? The weird thing is t...