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Clicking the back button twice to exit an activity

...y after the user has pressed back a couple of times to go back to the main screen). If, later, the user presses back again, we can suppose he wants to exit the app (unless he has navigated into another activities and problably lost track of how deep he got). In the accepted answer above, you consid...
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Is it possible to rotate a drawable in the xml description?

...m 0 to 360 degrees because i want a full rotation, the problem is in small screens it rotates deformed, any clue? – firetrap Oct 7 '14 at 10:08 1 ...
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What is the difference between the hidden attribute (HTML5) and the display:none rule (CSS)?

...rked hidden, it is hidden from all presentations, including, for instance, screen readers. http://dev.w3.org/html5/spec/Overview.html#the-hidden-attribute Since CSS can target different media/presentation types, display: none will be dependent on a given presentation. E.g. some elements might hav...
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术

...参数为线程属性设置结构的指针,一般可以设为NULL使用默认属性,最后两个参数是线程创建后立刻执行的回调函数的函数指针及回调函数的参数。 线程创建成功后,开始执行回调函数,此时调用pthread_join等待线程的终止,第一...
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Runtime vs. Compile time

...puts and outputs are entirely up to the programmer. Files, windows on the screen, network packets, jobs sent to the printer, you name it. If the program launches missiles, that's an output, and it happens only at run time :-) ...
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Is an empty href valid?

...out having a tabindex value set. Furthermore, this will be inaccessible to screenreader software using Internet Explorer, as IE will report through the accessibility interfaces that any anchor element without an href attribute as not-focusable, regardless of whether the tabindex has been set. So w...
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How do I add an existing Solution to GitHub from Visual Studio 2013

...nce created open the repository and copy the URL (it's on the right of the screen in the current version) Go back to Visual Studio Make sure you have the Microsoft Git Provider selected under Tools/Options/Source Control/Plug-in Selection Open Team Explorer Select Home | Unsynced Commits Enter th...
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What are the best practices for structuring a large Meteor app with many HTML template files? [close

...umping is ok, but you can see what happens with Asana - it requires a load screen while it downloads > 1MB of client code. That's not acceptable for a lot of sites. We're going to see if we can't maybe do some of the loading piecemeal after main screen load, but I'm skeptical right now. I think...
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How to select rows from a DataFrame based on column values?

... At 9 screenfuls, this is way overload for a new or even intermediate user. You can and should self-summarize the tl;dr in the first paragraph. – smci Jul 13 '19 at 0:13 ...
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How are everyday machines programmed?

...v shows blaring at you while you pump your gas, and dancing baloney on the screen when not, has lead to more horsepower. Likewise the coke and water machines with the two axis grabber. – old_timer Apr 11 '11 at 3:32 ...