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Forward declaration of nested types/classes in C++
...ontrol_Nested(int i) : Nested(i) { }
};
This technique would probably be more trouble than it's worth if there were complicated constructors or other special member functions that weren't inherited smoothly. I could imagine certain template magic reacting badly.
But in my very simple case, it see...
How to convert byte array to string and vice versa?
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How to pass data from 2nd activity to 1st activity when pressed back? - android
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What is maximum query size for mysql?
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...eferenceListener a member of the Activity class. But there's a third and a more straightforward solution that Google also uses in this codelab. Make your activity class implement the OnSharedPreferenceChangeListener interface and override onSharedPreferenceChanged in the Activity, effectively making...
Change SQLite default settings
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HtmlString vs. MvcHtmlString
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How to handle back button in activity
...Activity.class));
finish();
}
I think there might be more elaborate ways of going about it, but I like simplicity. For example, I used the template above to make the user sign out of the application AND THEN go back to another activity of my choosing.
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What is the 'instanceof' operator used for in Java?
...cal usage of instanceof is for checking if an identifier is referring to a more specific type. Example:
Object someobject = ... some code which gets something that might be a button ...
if (someobject instanceof Button) {
// then if someobject is in fact a button this block gets executed
} els...
How to compile tests with SBT without running them
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