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Android 4.2: back stack behaviour with nested fragments
...ragmentManager() . When using getChildFragmentManager() and addToBackStack(String name), by pressing the back button the system does not run down the back stack to the previous fragment.
On the other hand, when using getFragmentManager() and addToBackStack(String name), by pressing the back butto...
Relative imports in Python 3
...
If the __name__ is '__main__', __name__.rpartition('.')[0] returns empty string. This is why there's empty string literal in the error description:
SystemError: Parent module '' not loaded, cannot perform relative import
The relevant part of the CPython's PyImport_ImportModuleLevelObject functi...
How to check if a model has a certain column/attribute?
... a class
Use Class.column_names.include? attr_name where attr_name is the string name of your attribute.
In this case: Number.column_names.include? 'one'
For an instance
Use record.has_attribute?(:attr_name) or record.has_attribute?('attr_name') (Rails 3.2+) or record.attributes.has_key? attr_na...
BaseException.message deprecated in Python 2.6
...to the constructor. Suggested practice, though, is that only a
single string argument be passed to the constructor."""
__str__ and __repr__ are already implemented in a meaningful way,
especially for the case of only one arg (that can be used as message).
You do not need to repeat __str__ or _...
How to do a scatter plot with empty circles in Python?
...rol the Collection properties; in particular:
edgecolors:
The string ‘none’ to plot faces with no outlines
facecolors:
The string ‘none’ to plot unfilled outlines
Try the following:
import matplotlib.pyplot as plt
import numpy as np
x = np.random.randn(60)
y =...
Streaming Audio from A URL in Android using MediaPlayer?
... on UI thread.
* @author piyush
*
*/
class Player extends AsyncTask<String, Void, Boolean> {
private ProgressDialog progress;
@Override
protected Boolean doInBackground(String... params) {
// TODO Auto-generated method stub
Boolean prepared;
try {
...
How to print formatted BigDecimal values?
...
public static String currencyFormat(BigDecimal n) {
return NumberFormat.getCurrencyInstance().format(n);
}
It will use your JVM’s current default Locale to choose your currency symbol. Or you can specify a Locale.
NumberFormat.get...
How to add text to a WPF Label in code?
...inForms, value of Label object is changed by,
myLabel.Text= "Your desired string";
But in WPF Label control, you have to use .content property of Label control
for example,
myLabel.Content= "Your desired string";
share
...
Twitter Bootstrap: Text in navbar
...ording to the twitter bootstrap documentation , I should be able to "Wrap strings of text in a <p> tag for proper leading and color." When I do this, at any level under navbar it simply doesn't inherit any of the navbar classes. Wrapping the string in <a> tags renders it but it ...
How to properly ignore exceptions
...hy? Say you (somehow) accidently pass the function an integer instead of a string, like:
shutil.rmtree(2)
It will give the error "TypeError: coercing to Unicode: need string or buffer, int found" - you probably don't want to ignore that, which can be difficult to debug.
If you definitely want to...