keicoder

//텍스트 한 칸 앞으로 가기

-(void)gotoPrevChar
{
    
    UITextRange *selectedRange = [self.noteTextView selectedTextRange];
    
    //Calculate the new position, - for left and + for right
    if (self.noteTextView.selectedRange.location > 0) {
        

keicoder

Online Dev Tutorial Site


video2brain		https://www.video2brain.com
tutsplus		https://tutsplus.com
lynda			http://www.lynda.com
pluralsight		http://pluralsight.com
Infinite Skills		http://www.infiniteskills.com
udemy			https://www.udemy.com
teamtreehouse		http://teamtreehouse.com

keicoder

UiTableView Deleting rows (테이블 뷰 행 삭제)

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{

[items removeObjectAtIndex:indexPath.row]; //1. remove the item from data model:
NSArray *indexPaths = [NSArray arrayWithObject:indexPath]; 
[tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationAutomatic]; //2. delete the corresponding row from the table view

}

keicoder

UiTableView Static cell disable selections for row (정적 셀에서  셀 선택 허용하지 않기)

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{

	return nil; //returning nil, delegate answers : “Sorry, but you’re not allowed to!”
}

* One more thing todo : Storyboard editor, select the table view cell and go to the Attributes Inspector. Set the Selection attribute to None.
now impossible to select the row and make it turn blue.

keicoder

UITextField 텍스트 유무에 따라 액션 버튼 활성화 판단

- (BOOL)textField:(UITextField *)theTextField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    NSString *newText = [theTextField.text stringByReplacingCharactersInRange:range withString:string];
    if ([newText length] > 0) {
        self.doneBarButton.enabled = YES;
    } else {
        self.doneBarButton.enabled = NO;
    }

keicoder

기본적인 delegate pattern
//steps for setting up the delegate pattern between two objects,
//where object A is the delegate for object B and object B will send out the messages:

//1.Define a delegate @protocol for object B.
//2.Give object B a property for that delegate protocol.
//3.Make object B send messages to its delegate when something interesting happens, such as the user pressing the Cancel or Done buttons, or when it needs a piece of information.
//4.Make object A conform to the delegate protocol. It should put the name of the protocol in its @interface line and implement the methods from the protocol.
//5.Tell object B that object A is now its delegate.

keicoder

put check mark on UITableView Cell  (테이블 뷰에 체크마크 넣기)

//first : 
//Add a new label to the cell to the left of the text label. Give it the following attributes:
//Text: √ (you can type this with Alt/Option+V) • Font: System Bold, size 22
//Autoshrink: No
//Highlighted color: White
//Tag: 1001 //give label its own tag, so can easily find it later.

- (void)configureCheckmarkForCell:(UITableViewCell *)cell withChecklistItem:(ê ChecklistItem *)item {

keicoder

UITableView Cell의  Detail Disclosure 버튼에 Segue 적용 (for iOS 5)

//Note: As of Xcode 4.5 and iOS 6 you can now make segues directly from accessory buttons. 
//When you Ctrl-drag from the table view cell, 
//Xcode asks you whether you want to put the segue on the whole cell or just the accessory button. 
//this new feature is not compatible with iOS 5

//first : 
//table view cell in the Storyboard editor and in the Attributes Inspector set its Accessory to Detail Disclosure.
//Ctrl-drag from the ChecklistsViewController icon in the dock area to the Navigation Controller and make a Modal segue:

keicoder

//iOS 7 스토리보드 대신 xib 방식으로 개발하기

//solution 1

1. empty application 생성
2. new class file 생성 -> name : ViewController, UIViewController sub class, with XIB check
3. appdelegate 헤더 파일 수정
	@class ViewController;
	@property (strong, nonatomic) ViewController *viewController;
4. appdelegate m 파일 수정

keicoder

UITextView 생성, 델리게이트 메소드

#import <QuartzCore/QuartzCore.h>

.h 파일
@interface 에서 <UITextViewDelegate> 명시

.m 파일

#pragma mark - 뷰 라이프 사이클