아이폰어플개발정보2010. 6. 24. 14:13
The iPhone Developers Cookbook
Cookbook is loaded with heaps of tricks. These are some notes from the book.

* Origin

- Quartz: bottom left

- UIViews: top left


* screenshotting (non-public API)

@interface UIApplication (Extended)

-(void) _writeApplicationSnapshot;

@end

[[UIApplication sharedApplication] _writeApplicationSnapshot];


* Transition

- CATransition class: applied to the view's default layer

- UIView's built-in transition animation


* Audio service interfering with iPod audio

- Celestial: do interfere

- System Audio service: doesn't interfere


* MPMoviePlayerController plays by its own rules.You do not push it onto a navigation stack.You do not invoke it modally. Instead, you create it and tell it to play.

: Supported file types include MOV, MP4, MPV, M4V, and 3GP, as well as MP3, AIFF, M4A.


* Reading in Text Data

NSString *path = [[NSBundle defaultBundle] pathForResource:@"myText" ofType:@"txt"]; NSString *fileText = [NSString stringWithContentsOfFile:path encoding: NSUTF8StringEncoding error:nil];


* Writing out Text Data

NSError *error; [myString writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:&error];


* Reading in plist file

NSDictionary *plist = [NSMutableDictionary dictionaryWithContentsOfFile:PLISTPATH];

if (plist) textView.text = [plist description]; else textView.text = @"Could not read property list from file";


* Core location

1. GPS or SkyHook WiFi

2. Google Maps cell tower location

3. SkyHook Internet provider location


Gus Mueller’s FMDB Cocoa wrappers: http://gusmueller.com/x/fmdb.zip

Send a simple SQLite call as an NSString query ([db executeQuery:@"select * from call"])



출처 : http://blog.naver.com/PostView.nhn?blogId=gonagi&logNo=150073447904

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