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How to add Action Bar from support library into PreferenceActivity?
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EDIT: In appcompat-v7 22.1.0 Google added the AppCompatDelegate abstract class as a delegate you can use to extend AppCompat's support to any activity.
Use it like this:
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import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCo...
Why do we need argc while there is always a null at the end of argv?
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106
Yes, argv[argc]==NULL is guaranteed. See C11 5.1.2.2.1 Program startup (my emphasis)
If th...
Create dynamic URLs in Flask with url_for()
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answered Sep 20 '11 at 0:02
FogleBirdFogleBird
61.9k2323 gold badges117117 silver badges127127 bronze badges
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How do you print in a Go test using the “testing” package?
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edited Dec 27 '19 at 0:44
Pang
8,2181717 gold badges7373 silver badges111111 bronze badges
answered...
How to center align the ActionBar title in Android?
...r().setCustomView(R.layout.abs_layout);
abs_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
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How do you generate dynamic (parameterized) unit tests in python?
... self.assertEqual(a,b)
Which will generate the tests:
test_sequence_0_foo (__main__.TestSequence) ... ok
test_sequence_1_bar (__main__.TestSequence) ... FAIL
test_sequence_2_lee (__main__.TestSequence) ... ok
======================================================================
FAIL: test_s...
How would you make two s overlap?
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90
I might approach it like so (CSS and HTML):
html,
body {
margin: 0px;
}
#logo {
p...
Why are floating point numbers inaccurate?
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250
In most programming languages, floating point numbers are represented a lot like scientific nota...
bool operator ++ and --
...1) or true (if the integral value is anything else - notably this includes 0 [false] and 2 or more [true]).
So as a short-hand ++ worked, and -- didn't.
++ is allowed on bools for compatibility with this, but its use is deprecated in the standard and it was removed in C++17.
This assumes that I onl...
Multiline syntax for piping a heredoc; is this portable?
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105
Yes, the POSIX standard allows this. According to the 2008 version:
The here-document shal...