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B-Tree vs Hash Table
In MySQL, an index type is a b-tree, and access an element in a b-tree is in logarithmic amortized time O(log(n)) .
5 Answ...
App Inventor 2 视频播放器教程 - VideoPlayer组件与WebView嵌入播放 · App Inventor 2 中文网
...播放控制条，包含播放/暂停、快进、快退按钮。同时，开发者也可以通过积木块代码来控制播放行为。
VideoPlayer 的核心能力
能力
说明
本地视频播放
支持播放打包在应用...
opengl: glFlush() vs. glFinish()
...ces OpenGL to perform outstanding commands, which is a bad idea (e.g. with VSync)
To sum up, this means that you don't even need these functions when using double buffering, except if your swap-buffers implementation doesn't automatically flush the commands.
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Detect home button press in android
...the user to click the homebutton. You can still, add your view as a system alert dialog, which will overlay everything. But the home button clicks will go through it.
– JacksOnF1re
Mar 23 '15 at 18:56
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Is there a real solution to debug cordova apps [closed]
... solution is that console.log doesn't seem to work. You need to go through alerts which is really a burden.
– João Pimentel Ferreira
May 3 '18 at 20:37
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IN vs OR in the SQL WHERE Clause
When dealing with big databases, which performs better, IN or OR in the SQL Where -clause?
6 Answers
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In Git, what is the difference between origin/master vs origin master?
I know, origin is a term for the remote repository and master is the branch there.
6 Answers
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Android: How to create a Dialog without a title?
...ious version of this answer, which is overcomplicated:
You need to use an AlertDialog. There's a good explanation on the Android Developer's site about custom dialogs.
In very short summary, you do this with code like copied below from the official website. That takes a custom layot file, inflates...
Do you have to restart apache to make re-write rules in the .htaccess take effect?
... apache2.4 > replace the RewriteLog & LogLevel above with: LogLevel alert rewrite:trace7. After restarting apache, you should see the traces in the error.log Hope that helps. http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html#logging
– Casper Wilkes
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Spring @PostConstruct vs. init-method attribute
...f you plan to take certification exams ;)
– S.Klechkovski
Jul 28 '16 at 15:29
@DonalFellows - Can you please elaborate...