大约有 32,000 项符合查询结果(耗时:0.0520秒) [XML]

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Fragments within Fragments

I'm wondering if this is actually a bug in the Android API: 6 Answers 6 ...
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Should I use Java's String.format() if performance is important?

We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe). ...
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Prevent RequireJS from Caching Required Scripts

RequireJS seems to do something internally that caches required javascript files. If I make a change to one of the required files, I have to rename the file in order for the changes to be applied. ...
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STL or Qt containers?

... (see the std::string COW controversy). Some STL implementations are especially bad. provide hashes, which are not available unless you use TR1 The QTL has a different philosophy from the STL, which is well summarized by J. Blanchette: "Whereas STL's containers are optimized for raw speed, Qt's co...
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Search for string and get count in vi editor

... :g/xxxx/d This will delete all the lines with pattern, and report how many deleted. Undo to get them back after. share | improve this answer ...
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How can I check if a view is visible or not in Android? [duplicate]

...sible. View.INVISIBLE The view is invisible, but any spacing it would normally take up will still be used. Its "invisible" View.GONE The view is gone, you can't see it and it doesn't take up the "spot". So to answer your question, you're looking for: if (myImageView.getVisibility() == View.VISIB...
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Why are interface variables static and final by default?

...ariable. As for the part about final, that doesn't offer an explanation at all - it just describes what final means. – pyrocrasty May 9 '16 at 6:34 3 ...
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jQuery selectors on custom data attributes using HTML5

... $("ul[data-group='Companies'] li[data-company='Microsoft']") //Get all elements with data-company="Microsoft" below "Companies" $("ul[data-group='Companies'] li:not([data-company='Microsoft'])") //get all elements with data-company!="Microsoft" below "Companies" Look in to jQuery Selector...
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HTML5 Canvas 100% Width Height of Viewport?

....getContext('2d'); // resize the canvas to fill browser window dynamically window.addEventListener('resize', resizeCanvas, false); function resizeCanvas() { canvas.width = window.innerWidth; canvas.height = window.innerHeight; /** * You...
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Send and receive messages through NSNotificationCenter in Objective-C?

... @implementation TestClass - (void) dealloc { // If you don't remove yourself as an observer, the Notification Center // will continue to try and send notification objects to the deallocated // object. [[NSNotificationCenter defaultCenter] removeO...