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What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?
...t to schedule something to actually happen even though the screen is off / cpu is sleeping, you need to check out the AlarmManager too.
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Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop
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This error has no true magic bullet answer. The key is to have all the information to understand the problem. Most likely a dynamically loaded assembly is missing a referenced assembly. That assembly needs to be in the bin directory of your application.
Use this code to determine wha...
Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
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shell> ldd /path/to/nginx
libluajit-<VERSION>.so => not found
此类问题通常使用ldconfig命令就能解决：
shell> echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local_lib.conf
shell> ldconfig
再试着启动Nginx看看，应该就OK了。
应用
我们先用一个简单的程序...
window.onload vs document.onload
....onload and fires when the DOM is ready as well.
document.onload
It is called when the DOM is ready which can be prior to images and other external content is loaded.
How well are they supported?
window.onload appears to be the most widely supported. In fact, some of the most modern browsers h...
Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]
...s, though it does support TLS_DHE. It's a bummer, but I'll sacrifice some CPU to keep my EC2 deployments simpler
– SurlyDre
Sep 5 '15 at 2:11
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What is the fastest way to create a checksum for large files in C#
...me machines. The files can be up to 6GB in size. The sync will be done manually every few weeks. I cant take the filename into consideration because they can change anytime.
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What's the best practice to round a float to 2 decimals? [duplicate]
...tatistics in Java 2 years ago and I still got the codes of a function that allows you to round a number to the number of decimals that you want. Now you need two, but maybe you would like to try with 3 to compare results, and this function gives you this freedom.
/**
* Round to certain number of ...
How to set the width of a cell in a UITableView in grouped style
...her two are worse.
Adjust table view width in -viewWillAppear:
First of all, this is unreliable, the superview or parent view controller may adjust table view frame further after -viewWillAppear: is called. Of course, you can subclass and override -setFrame: for your UITableView just like what I ...
How to change the blue highlight color of a UITableViewCell?
...tyleGray, it will be gray.
Change the selectedBackgroundView property. Actually what creates the blue gradient is a view. You can create a view and draw what ever you like, and use the view as the background of your table view cells.
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MySQL maximum memory usage
...is no general rule of thumb for what is recommend for your MySQL setup. It all depends on the current usage or the projections.
Settings & database
MySQL offers countless variables and switches to optimize its behavior. If you run into issues, you really need to sit down and read the (f'ing) m...