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Android: How to enable/disable option menu item on button click?

... I've tried this, and it doesn't work. Did you mean onPrepareOptionsMenu? – Christopher Pickslay Jul 14 '14 at 22:40 ...
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How to align checkboxes and their labels consistently cross-browsers

...large. They all float next to each other on the same line, but the nowrap means that the whole label text always stays next to the checkbox. The downside is the extra meaningless SPAN tags. .checkboxes label { display: inline-block; padding-right: 10px; white-space: nowrap; } .che...
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Can't escape the backslash with regex?

... If it's not a literal, you have to use \\\\ so that you get \\ which means an escaped backslash. That's because there are two representations. In the string representation of your regex, you have "\\\\", Which is what gets sent to the parser. The parser will see \\ which it interprets as a va...
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More elegant “ps aux | grep -v grep”

... and x list processes in addition to the set of processes matched by other means. – Animism Dec 12 '13 at 22:19 @Animi...
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What is the difference between “int” and “uint” / “long” and “ulong”?

... with "u" are unsigned versions with the same bit sizes. Effectively, this means they cannot store negative numbers, but on the other hand they can store positive numbers twice as large as their signed counterparts. The signed counterparts do not have "u" prefixed. The limits for int (32 bit) are: ...
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Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter

...new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f24728627%2fmeaning-of-android-studio-error-not-annotated-parameter-overrides-nonnull-para%23new-answer', 'question_page'); } ); Post as a guest ...
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Is there any difference between a GUID and a UUID?

...a synonym for GUID." But the correct answer depends on what the question means when it says "UUID"... The first part depends on what the asker is thinking when they are saying "UUID". Microsoft's claim implies that all UUIDs are GUIDs. But are all GUIDs real UUIDs? That is, is the set of all UUIDs...
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Best practices for overriding isEqual: and hash

...ur hash should return a random distribution of values for its input. This means that, for example, if you have a double, but the majority of your values tend to cluster between 0 and 100, you need to make sure that the hashes returned by those values are evenly distributed across the entire range o...
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What are “first class” objects?

... In short, it means there are no restrictions on the object's use. It's the same as any other object. A first class object is an entity that can be dynamically created, destroyed, passed to a function, returned as a value, and have all th...
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Django - limiting query results

... Django querysets are lazy. That means a query will hit the database only when you specifically ask for the result. So until you print or actually use the result of a query you can filter further with no database access. As you can see below your code onl...