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Updating the list view when the adapter data changes
...tView.setAdapter(adapter);
and after updating the value of a list item, call:
adapter.notifyDataSetChanged();
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How to take screenshot of a div with JavaScript?
I am building something called the "HTML Quiz". It's completely ran on JavaScript and it's pretty cool.
10 Answers
...
Git command to show which specific files are ignored by .gitignore
...kes a file to be ignored in your git repo.
On Unix, using "What expands to all files in current directory recursively?" and a bash4+:
git check-ignore **/*
(or a find -exec command)
Note: https://stackoverflow.com/users/351947/Rafi B. suggests in the comments to avoid the (risky) globstar:
git ...
Min/Max of dates in an array?
...
_.min and _.max work on arrays of dates; use those if you're using Lodash or Underscore, and consider using Lodash (which provides many utility functions like these) if you're not already.
For example,
_.min([
new Date(...
What is the convention for word separator in Java package names?
...
Packages
The prefix of a unique package name is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981.
S...
How to fix bower ECMDERR
...e you might encounter the same issue...It turns out my machine behind firewall, that won't able to access git://github.com/jquery/jquery.git
Link: Unable to Connect to GitHub.com For Cloning
The solution without changing the firewall:
git config --global url."https://".insteadOf git://
Credit...
Pros and Cons of Interface constants [closed]
...mple of a good enough and a bad use:
Bad:
interface User {
const TYPE_ADMINISTRATOR = 1;
const TYPE_USER = 2;
const TYPE_GUEST = 3;
}
Good Enough:
interface HTTPRequest_1_1 {
const TYPE_CONNECT = 'connect';
const TYPE_DELETE = 'delete';
const TYPE_GET ...
What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...can omit dot when using the prefix, infix and postfix notations -- the so called operator notation. While using the operator notation, and only then, you can omit the parenthesis if there is less than two parameters passed to the method.
Now, the operator notation is a notation for method-call, whi...
How to search file text for a pattern and replace it with a given value
...ull. This code is not fit for anything beyond a quick one-off script where all the data is backed up. For that reason, do NOT copy this code into your programs.
Here's a quick short way to do it.
file_names = ['foo.txt', 'bar.txt']
file_names.each do |file_name|
text = File.read(file_name)
ne...
Check if table exists and if it doesn't exist, create it in SQL Server 2008
...read, and you don't have to worry about sys.objects vs. sysobjects vs. sys.all_objects
vs. sys.tables. Basic form:
IF object_id('MyTable') is not null
PRINT 'Present!'
ELSE
PRINT 'Not accounted for'
Of course this will show as "Present" if there is any object present with that name. If yo...