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Adding gif image in an ImageView in android
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First, copy your GIF image into Asset Folder of your app
create following classes and paste the code
AnimationActivity: -
public class AnimationActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreat...
Line-breaking widget layout for Android
...at presents some data to the user. The data is such that it can be divided into 'words', each being a widget, and sequence of 'words' would form the data ('sentence'?), the ViewGroup widget containing the words. As space required for all 'words' in a 'sentence' would exceed the available horizontal ...
Why does “,,,” == Array(4) in Javascript?
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Because the right hand operand is converted to a string and the string representation of Array(4) is ,,,:
> Array(4).toString()
",,,"
If you use the array constructor function and pass a number, it sets the length of the array to that number. So you ...
Difference between DateTime and Time in Ruby
... DateTime when, for example, Shakespeare's birthday needs to be accurately converted: (emphasis added)
So when should you use DateTime in Ruby and when should you use Time? Almost certainly you'll want to use Time since your app is probably dealing with current dates and times. However, if you n...
Redefine tab as 4 spaces
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One more thing, use :retab to convert existing tab to spaces. vim.wikia.com/wiki/Converting_tabs_to_spaces
– DawnSong
Nov 10 '16 at 14:39
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When to use lambda, when to use Proc.new?
...ambda is strict about the number of arguments it accepts, whereas Proc.new converts missing arguments to nil. Here is an example IRB session illustrating the difference:
irb(main):001:0> l = lambda { |x, y| x + y }
=> #<Proc:0x00007fc605ec0748@(irb):1>
irb(main):002:0> p = Proc.new ...
Seeding the random number generator in Javascript
...PRNG functions produce a positive 32-bit number (0 to 232-1) which is then converted to a floating-point number between 0-1 (0 inclusive, 1 exclusive) equivalent to Math.random(), if you want random numbers of a specific range, read this article on MDN. If you only want the raw bits, simply remove t...
Syntax for creating a two-dimensional array
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Try the following:
int[][] multi = new int[5][10];
... which is a short hand for something like this:
int[][] multi = new int[5][];
multi[0] = new int[10];
multi[1] = new int[10];
multi[2] = new int[10];
multi[3] = new int[10];
multi[4] = ne...
Preferred method to store PHP arrays (json_encode vs serialize)
...at file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... prepare a little educational tool for SO which should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
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