本文主要讲述使用触屏实现图片缩放、移动、添加水印等功能,所以该篇文章主要通过setOnTouchListener监听实现该功能,如何使用RelativeLayout进行布局,MotionEvent.ACTION_DOWN:表明视图已经接收一次触摸,按下时触发、MotionEvent.ACTION_UP:表明视图停止接受一次触摸,被放开时触发、MotionEvent.ACTION_POINTER_DOWN:当屏幕上已经有一点被按住,再按下其他点时触发同时希望文章对大家有所帮助.protected void o...
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移动开发 时间:
2014-10-28 20:11:31
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284
零、boot的含义先问一个问题,”启动”用英语怎么说?回答是boot。可是,boot原来的意思是靴子,”启动”与靴子有什么关系呢? 原来,这里的boot是bootstrap(鞋带)的缩写,它来自一句谚语:"pull oneself up by one's bootstraps"字面意思是”拽着鞋带把...
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其他好文 时间:
2014-10-28 13:38:24
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213
搭建开发环境首先,确认系统安装的Python版本是2.7.x:$ python --versionPython 2.7.5然后,安装开发Web App需要的第三方库:前端模板引擎jinja2:$ sudo apt-get install python-jinja*有python-jinja2 和py...
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编程语言 时间:
2014-10-28 10:20:36
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231
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.Fo...
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其他好文 时间:
2014-10-28 07:02:27
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171
问题描述:
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).
For example:
Given binary tree {3,9,20,#,#,...
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其他好文 时间:
2014-10-27 21:21:00
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190
detecting locked tables mysql (locked by LOCK TABLE)up vote15down votefavorite7I would like to know whether there is an option to detect locked tables...
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数据库 时间:
2014-10-27 21:09:44
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307
Problem DescriptionThe highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at wh...
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其他好文 时间:
2014-10-27 17:29:51
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170
1. PythonOf course you will need Python. Still Python 2.7 is preferred, however if you would like to create new projects with Python 3, it is also fin...
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系统相关 时间:
2014-10-27 14:19:53
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283
#define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y))1、问题 x、y都是整数,且x > 1, y > 1,求 x / y的向上取整,即: 当 x / y整除时,向上取整值为 x / y; 当x / y不整除时,向上取整值为(x / y) + 1...
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其他好文 时间:
2014-10-27 14:17:24
阅读次数:
307
Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two nu...
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其他好文 时间:
2014-10-26 21:10:30
阅读次数:
170