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How many Activities vs Fragments?
...eeds to handle the logic of all the fragments that get placed in it at any time.
Overall, do not think of it as being forced to use many activities. Think of it as having the opportunity to split your code into many fragments, and saving memory when using them.
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How to remove the border highlight on an input text element
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Sometimes we need to compromise, in order to achieve something : )
– Anish Nair
Jan 31 '13 at 10:31
6
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Is it possible to decrypt MD5 hashes?
...er between 0 and n. If you were to perform the same calculation again (any time, on any computer, anywhere), using the exact same string, it will come up with the same value. And yet, there is no way to find out what the original value was, since there are an infinite number of numbers that have tha...
How can I make a UITextField move up when the keyboard is present - on starting to edit?
...t the scrolling would snap the UITextField into position. For the longest time I couldn't figure out what it was. Then I commented out the textFieldDidBeginEditing Delegate method and it all work!!(???). As it turned out, I believe the UIScrollView actually implicitly brings the currently edited ...
Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
So I'm trying to move a "close" button to the left side when the user is on Mac and the right side when the user is on PC. Now I'm doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser i...
Why Func instead of Predicate?
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While Predicate has been introduced at the same time that List<T> and Array<T>, in .net 2.0, the different Func and Action variants come from .net 3.5.
So those Func predicates are used mainly for consistency in the LINQ operators. As of .net 3.5, about using ...
How to create module-wide variables in Python? [duplicate]
...xplicit test for None
__DBNAME__ = name
else:
raise RuntimeError("Database name has already been set.")
By the way, for this example, the simple if not __DBNAME__ test is adequate, because any string value other than an empty string will evaluate true, so any actual database na...
Android ListView with different layouts for each row
...t would increase speed because you won't have to call findViewById() every time in getView method. See List14 in API demos.
Create one generic layout that will conform all combinations of properties and hide some elements if current position doesn't have it.
I hope that will help you. If you could...
Return type of '?:' (ternary conditional operator)
...pe and value category of a conditional expression is determined at compile time and must be appropriate whether or not the condition is true. If one of the operands must be converted to a different type to match the other then the conditional expression cannot be an lvalue as the result of this conv...
Understanding Fragment's setRetainInstance(boolean)
...e destroyed. If you click "home", the activity will be stopped and at some time in the future could be destroyed when memory is low. Retained Fragments are only retained across configuration changes, where the underlying activity to be destroyed and immediately recreated. In all other cases in which...