objective-c : making UITextView programmatically with custom class and UITextViewDelegate

making UITextView programmatically with custom class and UITextViewDelegate.m

//making UITextView programmatically with custom class and UITextViewDelegate


//1. make basic UITextView programmatically with custom class


//AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end


//AppDelegate.m

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
	if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    return YES;
}

@end



//JTextView.h

@interface JTextView : UITextView

@property (strong, nonatomic) UITextView *textView;

@end



//JTextView.m

@implementation JTextView

//in case making JTextView in code
- (id)initWithFrame:(CGRect)frame
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    self = [super initWithFrame:frame];
    if (self)
    {
        [self setup];
    }
    return self;
}


//in case making JTextView in storyboard
- (id)initWithCoder:(NSCoder *)aDecoder
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    self = [super initWithCoder:aDecoder];
    
    if (self)
    {
        [self setup];
    }
    return self;
}


- (void)setup
{
	if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    CGRect applicationBounds = [[UIScreen mainScreen] bounds]; //Bounds: 0, 0, 320, 568
    NSLog (@"applicationBounds: %f, %f, %f, %f", applicationBounds.origin.x, applicationBounds.origin.y, applicationBounds.size.width, applicationBounds.size.height);
    
    CGRect applicationFrame = [[UIScreen mainScreen] applicationFrame]; //Frame: : 0, 20, 320, 548
    CGFloat statusBarOffset = 20.0; //iOS7
    
    //텍스트 뷰 생성
    self.textView = [[UITextView alloc] initWithFrame:CGRectMake(0.0, statusBarOffset, applicationFrame.size.width, applicationFrame.size.height)]; //Frame: : 0, 20, 320, 548
    CGRect textViewFrame = self.textView.frame;
    NSLog (@"textViewFrame: %f, %f, %f, %f", textViewFrame.origin.x, textViewFrame.origin.y, textViewFrame.size.width, textViewFrame.size.height);
    
    UIEdgeInsets textViewInsets = UIEdgeInsetsMake(0.0, 0.0, 0.0, 0.0); //top, left, bottom, right
    self.textView.contentInset = textViewInsets;
    self.textView.scrollIndicatorInsets = textViewInsets;
    
    //텍스트 뷰 속성
    self.textView.text = @"Text View...";
    self.textView.font = [UIFont systemFontOfSize:14.0];
    self.textView.backgroundColor = [UIColor colorWithRed:0.95 green:0.95 blue:0.93 alpha:1];
    self.textView.scrollEnabled = YES;
    self.textView.alwaysBounceVertical = YES;
    self.textView.editable = YES;
    self.textView.clipsToBounds = YES;
    self.textView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
    self.textView.keyboardType = UIKeyboardTypeDefault;
    
    CALayer *imageLayer = self.textView.layer;
    [imageLayer setCornerRadius:10];
    [imageLayer setBorderWidth:2];
    imageLayer.borderColor=[[UIColor lightGrayColor] CGColor];
}


@end



//NoteViewController.h

@interface NoteViewController : UIViewController

@end



//NoteViewController.m

#import "JTextView.h"

@interface NoteViewController () <UITextViewDelegate>
{
    UITextView *_textView;
}

@end

@implementation NoteViewController


#pragma mark - View Life Cycle

- (void)viewDidLoad
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    [super viewDidLoad];
    
    //뷰 속성
    self.view.backgroundColor = [UIColor colorWithRed:0.99 green:0.4 blue:0.43 alpha:1];
    
    //텍스트 뷰 생성
    JTextView *jTextView = [[JTextView alloc] init];
    _textView = jTextView.textView;
    [self.view addSubview:_textView];
    
    _textView.delegate = self;
}


#pragma mark - UITextView delegate method (optional)

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    return YES;
}


- (void)textViewDidBeginEditing:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    _textView.backgroundColor = [UIColor colorWithRed:0.65 green:0.8 blue:1 alpha:1];
}


- (BOOL)textViewShouldEndEditing:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    return YES;
}


- (void)textViewDidEndEditing:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    _textView.backgroundColor = [UIColor colorWithRed:0.95 green:0.95 blue:0.93 alpha:1];
}


//Each time a user types a character on the keyboard, just before the character is displayed,
//the method textView:shouldChangeCharactersInRange:replacementString is called
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
    if ([text isEqualToString:@"\n"]){
        [_textView resignFirstResponder];
        return NO;
    }
    return YES;
}


//called when a section of text is selected or the selection is changed, such as when copying or pasting a section of text
- (void)textViewDidChangeSelection:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
}


- (void)textViewDidChange:(UITextView *)textView
{
    if (debug==1) {NSLog(@"Running %@ '%@'", self.class, NSStringFromSelector(_cmd));}
}



@end