keicoder

//Core Data : enable SQL Debug mode and disable journaling mode (WorksWellOnIOS7)



//enable SQL Debug mode

//1. Product > Scheme > Edit Scheme ...

//2. Ensure Run (Your App) and the Arguments tab is selected

keicoder

//sample code
//CoreData : fetchRequest, sortDescriptor, filter using predicate, show resulting Array object using for loop

- (void)demo {
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    
    //데모 데이터
//    NSArray *newItemNames = [NSArray arrayWithObjects:
//                             @"Apples", @"Milk", @"Bread", @"Cheese", @"Sausages", @"Butter", @"Orange Juice", @"Cereal", @"Coffee", @"Eggs", @"Tomatoes", @"Fish", nil];
//    

keicoder

//Core Data Default Migration


//1. disable automatic model mapping (just recommended option)
//set the NSInferMappingModelAutomaticallyOption option to @NO
    NSDictionary *options = @{NSMigratePersistentStoresAutomaticallyOption:@YES,
                              NSInferMappingModelAutomaticallyOption:@NO,
                              NSSQLitePragmasOption: @{@"journal_mode": @"DELETE"}};

keicoder

//Core Data Lightweight Migration & delete journal mode


//1. add a model version
//select current xcdatamodel -> Editor > Add Model Version -> accept new version name

//2. update data model
//select new xcdatamodel -> create a new entity -> select the new entity, create an attribute you want

//3. update current model version

keicoder

//모달 뷰로 viewController 불러오기

//present View Controller Modally


- (IBAction)addBookmark:(id)sender {

    // Initialize Add Bookmark View Controller
    AddBookmarkViewController *vc = [[AddBookmarkViewController alloc] initWithNibName:@"AddBookmarkViewController" bundle:[NSBundle mainBundle]];
    

keicoder

//클래스 생성 및 메소드 구현 예제

//.h 파일

@interface Player : NSObject {
    //ivar
    int score;
    NSString *name;
}

keicoder

//웹 뷰 이용 로컬 html 파일 불러오기

    NSString *htmlFile = [[NSBundle mainBundle]
                          pathForResource:@"BullsEye"
                          ofType:@"html"];
    NSData *htmlData = [NSData dataWithContentsOfFile:htmlFile];
    NSURL *baseURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] bundlePath]];
    [self.webView loadData:htmlData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:baseURL];

keicoder

//iOS 7 상태바 감추기 (remove the status bar on iOS 7)

//1. Main.storyboard -> View Controller -> Attributes inspector -> Simulated Metrics -> set Status Bar to None

//2. To remove the status bar during runtime, change necessary code
//.m file

- (BOOL)prefersStatusBarHidden {
	return YES;
}

keicoder

//테이블 뷰 레이블 (not embeded lable) tag 설정

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"ChecklistItem"];
    
    //tag 값으로 지정하기
    UILabel *label = (UILabel *)[cell viewWithTag:1000];
    
    if (indexPath.row == 0) {

keicoder

//코어 애니메이션 (Crossfade) 예제
    CATransition *transition = [CATransition animation];
    transition.type = kCATransitionFade;
    transition.duration = 1;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];