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IOS 5.0.1 越狱教程

Larkin_wang — Sat, 28 Jan 2012 15:23:29 +0800

首先，确认你的型号，iPad2，iPhone4S用户教程见Part1，其他机型见Part2。
截至自2012年1月28日，目前5.0.1可以完美越狱，4.3.5没有完美越狱，其他版本皆有完美越狱。
手动升级iOS固件：
连接设备后打开iTunes，按住shift键的同时点击恢复按钮

选择好固件的ipsw文件后，iTunes会自动更新固件
iOS的所有固件在此可以下载（由AppleLooker苹果看客整理），免去iTunes蛋疼的下载速度
http://applelooker.com/ios/
Part1
越狱工具：
Absinthe 0.3 for Windows
http://dl.dbank.com/c0z6hey44x
Absinthe 0.3 for Mac OS
http://dl.dbank.com/c0s6dj9jwi
1.确认您已经在iTunes中完成备份（以防万一），用数据线连接iPhone4s、iPad2，并确保iTunes处于关闭状态，解压后打开越狱软件

点击Jailbreak后，程序自动开始越狱！可能需要几分钟时间，请耐心等待，不要拔出数据线！
2.当进度条完成并且提示Almost done时，可以滑动解锁您的iPhone4S或iPad2！
在您的设备上已经出现了absinthe绿毒图标，点击后自动重启您的设备。
重启完成后，Cydia图标就出现代替了绿毒的图标，此时您就可以通过Cydia进行各种越狱后的操作了。

Top 32 Resource Mobile App Developers Should Know About

jason_zhang — Sat, 14 Jan 2012 22:28:37 +0800

source

iOS 5 tech talk notes

jason_zhang — Fri, 13 Jan 2012 12:53:29 +0800

Here goes my notes of iOS 5 tech talk inBeijing.

iOS 5 tech talk kickoff

Before starting a App, you should think about the following questions:

1. what will your App do?
2. who are the users?
3. where will they use it?
4. what type of App are you building?
5. what kind of content does it have?

always tell a great story.

While designing the User Interface, Reduce Visual Noise is very important. Besides reading HIS you should:

1. Avoid mixing typefaces distinguish content.
2. Ensure the body context is very legible.
3. Make navigation easy.
4. Have great visual design.
5. Minmun data sets.
6. Make graphically rich.
7. Universal Apps
8. Design for touch, Gestures are helpful, taking advantage of Multi-Touch.
9. Use animation to smooth transitions. Use animation to feel fast and feedback naturally.
10. Focus. You are better than anybody else in the area!

Finally, You should test your UI on the iPhone and make sure your app is Apple Quality.

For iCloud Storage and Understanding AV Foundation, there is no difference with the video of WWDC 2011.

Modernizing Your App Architecture with UIKit

There is a new idea about View Controller Container, like Navigation Controller, Tab bar Controller, and Split Controller in iPad are all View Controller Containers. View Controller Containers can add/remove Child View Controllers and manage their own hierarchy.

Modern Tools and Techniques for iOS App Development

Modernize your project:

1. use the latest best practices.
2. always line against the latest SDK.
3. check for dynamically linked API.

Taking Advantage of Automatic Reference Counting

Compiler Now Does the Memory Management

no retain, release, autorelease anymore… There is a compiler option for switch off ARC: -fno-objc-arc. The Refactor tool is also very powerful.

ARC will make your App faster, more responsive, and more efficient.

Take advantage of Instrument

For Memory management, like Real Memory, VM tracker, Dirty Memory

CoreImage can show you the efficient of draw. Try to use little transparent.

Try to Use Instrument to Optimize your App.