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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...化时心中要有如下准则：
换算关系：60帧/秒-----------16ms/帧；
准则：尽量保证每次在16ms内处理完所有的CPU与GPU计算、绘制、渲染等操作，否则会造成丢帧卡顿问题。
从上面可以看出来，所谓的卡顿其实是可以量化的，每...
How to prevent form from submitting multiple times from client side?
Sometimes when the response is slow, one might click the submit button multiple times.
23 Answers
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How do you import a large MS SQL .sql file?
I use RedGate SQL data compare and generated a .sql file, so I could run it on my local machine. But the problem is that the file is over 300mb, which means I can't do copy and paste because the clipboard won't be able to handle it, and when I try to open the file in SQL Server Management Studio I g...
Iterating each character in a string using Python
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As Johannes pointed out,
for c in "string":
#do something with c
You can iterate pretty much anything in python using the for loop construct,
for example, open("file.txt") returns a file object (and opens the file), iterating over it iterates over lines in that file
wit...
How do I force a UITextView to scroll to the top every time I change the text?
OK, I'm having some problem with the UITextView . Here's the issue:
37 Answers
37
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PHP Fatal error: Using $this when not in object context
I've got a problem:
9 Answers
9
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How to read file from relative path in Java project? java.io.File cannot find the path specified
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If it's already in the classpath, then just obtain it from the classpath instead of from the disk file system. Don't fiddle with relative paths in java.io.File. They are dependent on the current working directory over which you have totally no control from inside the Java code.
As...
Create aar file in Android Studio
I'd like to create an aar file for my library in Android Studio, i would've gone with a jar option but my library has resources.
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Naming conventions for java methods that return boolean(No question mark)
I like using question mark at the end of method/function names in other languages. Java doesn't let me do this. As a workaround how else can I name boolean returning methods in Java? Using an is , has , should , can in the front of a method sound okay for some cases. Is there a better way to na...
How can I create an Asynchronous function in Javascript?
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You cannot make a truly custom asynchronous function. You'll eventually have to leverage on a technology provided natively, such as:
setInterval
setTimeout
requestAnimationFrame
XMLHttpRequest
WebSocket
Worker
Some HTML5 APIs such as ...