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how to override action bar back button in android?
...ionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
Toast.makeText(getApplicationContext(),"Back button clicked", Toast.LENGTH_SHORT).show();
break;
}
return true;
}
...
What's the difference between a Python “property” and “attribute”?
I am generally confused about the difference between a "property" and an "attribute", and can't find a great resource to concisely detail the differences.
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Ignoring an already checked-in directory's contents?
I have a git repository that's used only to hold graphics and sound files used in several projects. They are all in one directory without sub-directories. Now I just created a script to copy these assets over from another, structured directory, with several levels of sub-directories.
...
How to get a one-dimensional scalar array as a doctrine dql query result?
...
PHP < 5.5
You can use array_map, and since you only have on item per array, you can elegantly use
'current' as callback, instead of writing a closure.
$result = $em->createQuery("SELECT a.id FROM Auction a")->getScalarResult();
$ids = array_map('curr...
How to assign a heredoc value to a variable in Bash?
...
You can avoid a useless use of cat and handle mismatched quotes better with this:
$ read -r -d '' VAR <<'EOF'
abc'asdf"
$(dont-execute-this)
foo"bar"''
EOF
If you don't quote the variable when you echo it, newlines are lost. Quoting it preserves them:...
How to fix a locale setting warning from Perl?
...settings:
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
My guess is you used ssh to connect to this older host from a newer desktop machine. It's common for /etc/ssh/sshd_config to contain
Ac...
SQL set values of one column equal to values of another column in the same table
...
UPDATE YourTable
SET ColumnB=ColumnA
WHERE
ColumnB IS NULL
AND ColumnA IS NOT NULL
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Unix shell script to truncate a large file
...an application when it reaches say 3GB of space. I know that the below command would do it :
4 Answers
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How to output a comma delimited list in jinja python template?
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And using the joiner from http://jinja.pocoo.org/docs/dev/templates/#joiner
{% set comma = joiner(",") %}
{% for user in userlist %}
{{ comma() }}<a href="/profile/{{ user }}/">{{ user }}</a>
{% endfor %}
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How to pass parameters to anonymous class?
...se are executed in the same order as field assignments, i.e. after super() and before the rest of the actual constructor. new someclass(){ fields; {initializer} fields; methods(){} }. It's sort of like a static initializer but without the static keyword. docs.oracle.com/javase/specs/jls/se7/html/jls...