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Setting background colour of Android layout element
I am trying to, somewhat clone the design of an activity from a set of slides on Android UI design . However I am having a problem with a very simple task.
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?? Coalesce for empty string?
...ore and more is checking a string for empty (as in "" or null) and a conditional operator.
10 Answers
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Cannot find or open the PDB file in Visual Studio C++ 2010
I use Visual Studio 2010 C++ and my project builds without errors but when I run it I get this. I am on Windows XP.
7 Answe...
How to change to an older version of Node.js
... Version Manager.
Use following command to get nvm
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash
You can find it at https://github.com/creationix/nvm
It allows you to easily install and manage multiple versions of node. Here's a snippet from the help:
Usa...
AddRange to a Collection
...sked me today how to add a range to a collection. He has a class that inherits from Collection<T> . There's a get-only property of that type that already contains some items. He wants to add the items in another collection to the property collection. How can he do so in a C#3-friendly fashion...
Immutable array in Java
Is there an immutable alternative to the primitive arrays in Java? Making a primitive array final doesn't actually prevent one from doing something like
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...butter :and :jelly
0 1 2 3 4
4 is still within the array, just barely; if you request 0 elements, you get the empty end of the array. But there is no index 5, so you can't slice from there.
When you do index (like array[4]), you are pointing at elements themselves,...
In Unix, how do you remove everything in the current directory and below it?
I know this will delete everything in a subdirectory and below it:
10 Answers
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Getting the current Fragment instance in the viewpager
Below is my code which has 3 Fragment classes each embedded with each of the 3 tabs on ViewPager . I have a menu option. As shown in the onOptionsItemSelected() , by selecting an option, I need to update the fragment that is currently visible. To update that I have to call a method which is in t...
Android: Go back to previous activity
I want to do something simple on android app.
How is it possible to go back to a previous activity.
23 Answers
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