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How to pass the values from one activity to previous activity
.... Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences.
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
//now get Editor
SharedPreferences.Edito...
When should I really use noexcept?
...iers right after they came out then the answers would be very different to now.
Having to think about whether or not I need to append noexcept after every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that ...
Which Architecture patterns are used on Android? [closed]
I'm doing a small research of mobile platforms and I would like to know which design patterns are used in Android?
12 Answe...
Elastic search, multiple indexes vs one index and types for different data sets?
...e an application developed using the MVC pattern and I would like to index now multiple models of it, this means each model has a different data structure.
...
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
... might find in knockout or other MVVM style libraries. Essentially, React knows when to re-render the scene because it is able to observe when this data changes. Dirty checking is slower than observables because you must poll the data at a regular interval and check all of the values in the data str...
In git, what is the difference between merge --squash and rebase?
...of squash using --commit explicitly.
git/git builtin/merge.c#cmd_merge() now includes:
if (option_commit > 0)
die(_("You cannot combine --squash with --commit."));
git rebase --interactive
replays some or all of your commits on a new base, allowing you to squash (or more recently "f...
Detecting Unsaved Changes
...he form with the users previous entries - without firing the change-event. Now the form will be dirty, but the flag won't be set unless the user makes another edit.
– Oskar Berggren
Aug 31 '14 at 16:05
...
What are the rules for the “…” token in the context of variadic templates?
...t side of ... is repeated — the unpacked patterns (call them expressions now) are separated by comma ,.
It can be best understood by some examples. Suppose you have this function template:
template<typename ...T> //pack
void f(T ... args) //pack
{
// here are unpack patterns
g( a...
git: fatal unable to auto-detect email address
...
Ok. Just upvoted. But now I have to spend the rest of the day trying to find where did you put a cam in my office.
– Almir Campos
Apr 27 '18 at 18:24
...
What would a “frozen dict” be?
...to want such a type is when memoizing function calls for functions with unknown arguments. The most common solution to store a hashable equivalent of a dict (where the values are hashable) is something like tuple(sorted(kwargs.iteritems())).
This depends on the sorting not being a bit insane. Pyth...