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How to detect the swipe left or Right in Android?
...s_container=(RelativeLayout)root.findViewById(R.id.filters_container);
new SwipeDetector(filters_container).setOnSwipeListener(new SwipeDetector.onSwipeEvent() {
@Override
public void SwipeEventDetected(View v, SwipeDetector.SwipeTypeEnum swipeType) {
if(swipeType==Sw...
Setting environment variables on OS X
...ing by opening a Terminal window and typing export and you should see your new variables. These will also be available in IntelliJ IDEA and other GUI applications you launch via Spotlight.
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What is the copy-and-swap idiom?
...takes the copied data with a swap function, swapping the old data with the new data. The temporary copy then destructs, taking the old data with it. We are left with a copy of the new data.
In order to use the copy-and-swap idiom, we need three things: a working copy-constructor, a working destruct...
List of Big-O for PHP functions
...e noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
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What is AssemblyInfo.cs used for?
...Name().Version.ToString();
and it will be updated each time you upload a new version.
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.gitignore for Visual Studio Projects and Solutions
...e/
# Backup & report files from converting an old project file
# to a newer Visual Studio version. Backup files are not needed,
# because we have git ;-)
_UpgradeReport_Files/
Backup*/
UpgradeLog*.XML
UpgradeLog*.htm
# SQL Server files
*.mdf
*.ldf
# Business Intelligence projects
*.rdl.data
*...
Round to at most 2 decimal places (only if necessary)
...
You've 'solved' the 1.005 'problem', but introduced a new one: now, in the Chrome console, roundToTwo(1.0049999999999999) comes out as 1.01 (inevitably, since 1.0049999999999999 == 1.005). It seems to me that the float you get if you type num = 1.005 'obviously' 'should' round t...
How to install packages offline?
...our virtualenv is active, write
pip freeze > requirements.txt
open a new terminal and create another env like myenv2.
python -m virtualenv myenv2
cd myenv2
source bin/activate
cd -
ls
now you can go to your offline folder where your requirements.txt and tranferred_packages folder are in the...
Commenting in a Bash script inside a multiline command
...${MYSQLDUMP} | \
# simplify the line
sed '/created_at/d' | \
# create some newlines
tr ",;" "\n" | \
# use some sed magic
sed -e 's/[asbi]:[0-9]*[:]*//g' -e '/^[{}]/d' -e 's/""//g' -e '/^"{/d' | \
# more magic
sed -n -e '/^"/p' -e '/^print_value$/,/^option_id$/p' | \
# even more magic
sed -e '/^opti...
How can I lookup a Java enum from its String value?
...m an abbreviation
private static final Map<String, Day> lookup = new HashMap<String, Day>();
static {
for (Day d : Day.values()) {
lookup.put(d.getAbbreviation(), d);
}
}
private Day(String abbreviation) {
this.abbreviation = abbrevia...