在实际开发中Android中自带的控件有时无法满足我们的需求,这时就需要我们重写控件来实现我们想要的功能。还有个关于UI体验的问题,就是在onDraw()函数中最好不要去创建对象,否则就提示下面的警告信息:因为onDraw()调用频繁,不断进行创建和垃圾回收会影响UI显示的性能例如:protec.....
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移动开发 时间:
2014-05-27 01:04:01
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663
The concept of STL is based on a separation of
data and operations. The data is managed by container classes, and the
operations are defined by config...
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其他好文 时间:
2014-05-26 09:43:55
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288
简介线程是在一个程序中并发的执行代码的方法之一。虽然有一些新的技术(operations,
GCD)提供了更先进高效的并发实现,OS
X和iOS同时也提供了创建和维护线程的接口。这里将要介绍线程相关的包以及如何使用他们。同时也会介绍程序中多线程代码的同步。关于线程开发多年以来,电脑的最大处理速度受制...
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移动开发 时间:
2014-05-26 07:00:02
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306
Design and implement a data structure for Least
Recently Used (LRU) cache. It should support the following
operations:getandset.get(key)- Get the valu...
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其他好文 时间:
2014-05-23 09:59:05
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257
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:
get and set.
get(key) - Get the value (will always be positive) of the key if t...
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其他好文 时间:
2014-05-22 07:25:32
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254
1 综述Separating touching objects in an image is one
of the more difficult image processing operations. The watershed transform is
often applied to this...
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其他好文 时间:
2014-05-22 04:27:23
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497
题目: Design and implement a data structure for Least
Recently Used (LRU) cache. It should support the following operations:getandset.
get(key)- Get ...
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其他好文 时间:
2014-05-16 05:42:29
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280
要点:AsyncTask主要用于short operations (a few seconds at
the most.)。如果你需要“running for long periods of time”,官方推荐使用various APIs provided
by the java.util.con...
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其他好文 时间:
2014-05-09 23:46:38
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304
#xml
api:http://www.cnblogs.com/lhj588/archive/2011/11/09/2242483.html#dictionary
operations: key in dict....from xml.dom import minidom, Nodedoc = mi...
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编程语言 时间:
2014-05-07 11:01:12
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602
You are given an N × N grid initially filled by zeros. Let the rows and columns of the grid be numbered from1 to N, inclusive. There are two types of operations can be applied to the grid:
RowAdd R...
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其他好文 时间:
2014-05-06 22:35:44
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451