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How to handle back button in activity
... (back) button e.g. " <- " this is what works for me. (*Note I have an app bar / toolbar in the activity)
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
//finish();
onBackPressed();
...
Difference Between Cohesion and Coupling
...alQuestion implements IStackoverflowQuestion {
protected Integer vote_ = new Integer(0);
protected IUserProfile user_ = null;
protected IUserProfile answered_ = null;
public void VoteUp(IUserProfile user) {
vote_++;
// code to ... add to user profile
...
How to validate an email address using a regular expression?
...version, not the markdown, for actual code.)
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:(2(5[...
What is the C# equivalent of NaN or IsNumeric?
...sure that all of the characters within the string are digits, then another approach should be taken.
example 1:
public Boolean IsNumber(String s) {
Boolean value = true;
foreach(Char c in s.ToCharArray()) {
value = value && Char.IsDigit(c);
}
return value;
}
or if you want...
How do I terminate a thread in C++11?
...esign such a feature.
A std::thread may have this member function:
native_handle_type native_handle();
You might be able to use this to call an OS-dependent function to do what you want. For example on Apple's OS's, this function exists and native_handle_type is a pthread_t. If you are success...
Is it safe to parse a /proc/ file?
... missing in what you see. To see that it's atomic for one read(), look at m_start() in fs/namespace.c and see it grab a semaphore that guards the list of mountpoints, which it keeps until m_stop(), which is called when the read() is done. To see what can go wrong, see this bug from last year (same ...
How to get an absolute file path in Python
...
Why is that when the Path(__file__) alone (without the resolve method) is used in a module being imported along with a package, gives the absolute path instead of the relative path?
– aderchox
Aug 8 at 8:50
...
What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
I'm getting started with SQLite databases in an app I'm working on. I've not run into issues yet but one of the early steps from this tutorial is linking the SQLite3 framework. The tutorial calls for libsqlite3.0.dylib but I noticed another one libsqlite3.dylib. Is the latter just a symlink to ...
What is `related_name` used for in Django?
What is the related_name argument useful for on ManyToManyField and ForeignKey fields? For example, given the following code, what is the effect of related_name='maps' ?
...
How to implement an abstract class in ruby?
...clarative about which methods are abstract:
module Abstract
def abstract_methods(*args)
args.each do |name|
class_eval(<<-END, __FILE__, __LINE__)
def #{name}(*args)
raise NotImplementedError.new("You must implement #{name}.")
end
END
# import...