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How can I make a UITextField move up when the keyboard is present - on starting to edit?
...ly need a ScrollView if the contents you have now do not fit in the iPhone screen. (If you are adding the ScrollView as the superview of the components just to make the TextField scroll up when keyboard comes up, then it's not needed.)
The standard way to prevent the TextFields from being covered by...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...很多时也很大
（3）select支持的文件描述符数量太小了，默认是1024
2 poll实现
poll的实现和select非常相似，只是描述fd集合的方式不同，poll使用pollfd结构而不是select的fd_set结构，其他的都差不多。
关于select和poll的实现分析，可...
Drawing Isometric game worlds
...aps the advantage for the "zig-zag" technique for mapping the tiles to the screen can be said that the tile's x and y coordinates are on the vertical and horizontal axes.
"Drawing in a diamond" approach:
By drawing an isometric map using "drawing in a diamond", which I believe refers to just rende...
开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...便用户灵活管理客户端的连接与访问。数据集成Mosquitto 默认通过 MQTT 客户端消息订阅方式实现外部系统对数据的消费。此外，Mosquitto 提供了多个 Mosquitto 之间的数据桥接能力，可以用于多个 broker 之间的分布式部署与数据打通。...
Why is Github asking for username/password when following the instructions on screen and pushing a n
I'm the owner of an organization on github and just created a repo and tried pushing but I'm running into an issue where it's asking me for my username even though I can SSH just fine:
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How to prevent custom views from losing state across screen orientation changes
... my main Activity to save and restore certain critical components across screen orientation changes.
9 Answers
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...步
填入刚才设置的密码后点击确定
默认40% 不变
进程调到1200
根据需要设置
后点击下一步
下一步
点击完成
点击确定 开始创建数据库
数据库创建完成。
验证服务
[or...
What is HTML5 ARIA?
...about the semantics of the various elements to assistive technologies like screen readers. Of course, for ARIA to work, the HTTP user agent that interprets the markup needs to support ARIA, but the spec is created in such a way, as to allow down-level user agents to ignore the ARIA-specific markup s...
display:inline vs display:block [duplicate]
...
display:block
takes the entire row(100%)of the screen ,it is always 100%of the screen size
display block example
display:inline-block takes up as much width as necessary ,it can be 1%-to 100% of the screen size
display inline-block example
that's why we have div and span
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How do I increase the cell width of the Jupyter/ipython notebook in my browser?
... the width of the ipython notebook in my browser. I have a high-resolution screen, and I would like to expand the cell width/size to make use of this extra space.
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