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How to resume Fragment from BackStack if exists

... means there is an instance of the Fragment in the back stack. If not, actually execute the Fragment replacement logic. private void replaceFragment (Fragment fragment){ String backStateName = fragment.getClass().getName(); FragmentManager manager = getSupportFragmentManager(); boolean fragm...
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Can you change a path without reloading the controller in AngularJS?

... Should be noted that you don't actually need to reformat your URLS. This may have been the case when the reponse was posted, but the documentation (docs.angularjs.org/api/ngRoute.$routeProvider) now says: [reloadOnSearch=true] - {boolean=} - reload route when...
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NVIDIA vs AMD: GPGPU performance

... Metaphorically speaking ati has a good engine compared to nvidia. But nvidia has a better car :D This is mostly because nvidia has invested good amount of its resources (in money and people) to develop important libraries required fo...
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Latex Remove Spaces Between Items in List

... If you want to remove the spacing globally for every list in your document just put \setlist[itemize]{noitemsep} in your preamble. – Fabian Winkler Mar 13 '13 at 15:52 ...
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In Postgresql, force unique on combination of two columns

...I like the suggestion of a primary key over unique here, because we do not allow NULL values in this case. From the PostgeSQL docs: "Note that a unique constraint does not, by itself, provide a unique identifier because it does not exclude null values.)" postgresql.org/docs/8.1/static/ddl-constraint...
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Why do we copy then move?

...rvalues, the above would not compile. Won't a copy be expensive, especially given something like std::string? If you pass an rvalue, that will be moved into str, and that will eventually be moved into data. No copying will be performed. If you pass an lvalue, on the other hand, that lvalue wil...
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Check whether HTML element has scrollbars

... If overflow is visible or hidden, there usually are no scrollbars. – Hubert Grzeskowiak Jul 21 '16 at 18:27  |  ...
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Performant Entity Serialization: BSON vs MessagePack (vs JSON)

...k is designed to be transparently converted from/to JSON. MessagePack is smaller than BSON MessagePack's format is less verbose than BSON. As the result, MessagePack can serialize objects smaller than BSON. For example, a simple map {"a":1, "b":2} is serialized in 7 bytes with MessagePack, while B...
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How do I test a camera in the iPhone simulator?

...n send it through the pipelined to be treated like a normal photo. Essentially providing the feel of a very fast camera. CGSize sz = UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation]) ? CGSizeMake(2448, 3264) : CGSizeMake(3264, 2448); UIGraphicsBeginImageContextWithOptions(sz, Y...
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Commit changes to a different branch than the currently checked out branch with subversion

... I recommend not to choose the root folder with all the irrelevant sub-folders which are not subject to be modified in the branch. Later it will be easier to merge the (smaller) branch back to trunk. – J Pollack Mar 5 '15 at 9:24 ...