iOS App Developer: October 2012

Monday, October 29, 2012

Fluid UI Mobile Prototyper for iOS

Fluid UI Mobile Prototyper for iOS

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一些Objective-C学习资源

一些Objective-C学习资源

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Friday, October 19, 2012

iOS 資料保存 Data Persistence - NSUserDefaults

NSUserDefaults (Setting)
Property List (plist)
CoreData

- (void)applicationDidEnterBackground:(UIApplication *)application
{
NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults];
[userDefault setObject:@"白彼得" forKey:@"name"];
[userDefault synchronize];
}
- (void)applicationWillEnterForeground:(UIApplication *)application
{
NSString *name = [[NSUserDefaults standardUserDefaults] objectForKey:@"name"];
NSLog(@"name %@", name);
}

Thursday, October 18, 2012

iOS 資料保存 Data Persistence - Property List

NSUserDefaults (Setting)
Property List (plist)
CoreData

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iOS檔案位置管理:
專案附檔的都放在專案下
動態產生的都放在模擬器(實機)底下

好處:
1.專案附檔的plist有UI介面可以方便管理
2.由writeToFile:atomically寫出Property List

名詞解釋:
property list: 一種xml的資料格式
writeToFile: 寫檔動作，儲存plist到模擬器document資料夾的動作
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); : 模擬器/實機的document資料夾位置
NSPropertyListSerialization: coverts Property List to/from NSData

iPhone 開發教學 - 使用 Property List 和 SQLite 處理資料儲存
(重要！教檔案位置，讀寫檔基本指令。)

Introduction to Property Lists (Apple Official)

相關指令 //codes are from 彼得潘app教學書

讀取專案裡附的檔案 (除圖片之外，如 txt 檔或影音檔)

讀取儲存動態產生的檔案(document底下位置)

非特權物件的寫檔
keyword:
encodeObject, decodeObjectForKey 是物件裡面的encode實作
[NSKeyedArchiver archiveRootObject: toFile:];
[NSKeyedUnArchiver unarchiveObjectWithFile:];

非特權物件的寫檔 (使用arhiver)
用NSMutableData *data來當作archiver，然後用writeToFile寫檔

用法：

// Writing
- (BOOL)writeToFile:(NSString *)aPath atomically:(BOOL)flag;
- (BOOL)writeToURL:(NSURL *)aURL atomically:(BOOL)flag;

// Reading
- (id)initWithContentsOfFile:(NSString *)aPath;
- (id)initWithContentsOfURL:(NSURL *)aURL;

特權物件可以直接用WriteToFile寫檔(只有NSString, NSData, NSDictionary, NSArray可以)，而非特權物件需要先archive才可以寫檔。

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Differences between property list, NSUserDefaults

how to save plist to NSUserDefaults

"You can think of NSUserDefaultsas an invisible .plist that you can read and write to, without ever being able to actually see the file. Using NSUserDefaults, you will be able to restore saved values even if the app has been killed in multitasking.
However, how you choose between .plist and NSUserDefaults should be based off of how much data you need to save. Apple recommends only saving small amounts of data to NSUserDefaults. If you need to save a lot of information then .plist is the way to go. Either that or of course Core-Data."

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Wednesday, October 17, 2012

World Resourse

Mail List
Cocoa-dev
Xcode-users
Quartz-dev
Cocoa-unbound
iPhone SDK Development

Forum
iphonedevbook.com
Apple Developer Forums
Apple Discussions, Developer Forums
Apple Discussions, iPhone

Website
CocoaHeads
NSCoder Night
Stack Overflow
iDeveloper TV
Cocoa Controls

Blog
Wil Shipley
Wolf Rentzsch
iDevBlogADay
CocoaCast
ObjecticeC on Twitter
Mike Ash

Meeting
WWDC
MacTech
NSConference
360 iDev
iPhone/iPad DevCon
Cingleton
Voices That Matter
CocoaConf

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Tuesday, October 16, 2012

ECSlidingViewController

# ECSlidingViewController `ECSlidingViewController` is a view controller container for iOS that presents its child view controllers in two layers. It provides functionality for sliding the top view to reveal the views underneath it. This functionality is inspired by the Path 2.0 and Facebook iPhone apps.
ECSlidingViewController Demo from EdgeCase on Vimeo.
This project is an example app that showcases the uses for `ECSlidingViewController`.