Try to add UIFont to XCode project - objective-c

I try to add OpenSans-Regular.ttf to my Xcode project:
1)I add the file into the project.
2) add font in plist.
3)check if the file add to Bundle resources
- (void)viewDidLoad
{
[super viewDidLoad];
UILabel *myLable = [[UILabel alloc]initWithFrame:CGRectMake(100, 100, 100, 50)];
myLable.text = #"TEST RR";
[myLable setFont:[UIFont fontWithName:#"OpenSans-Regular" size:30]];
myLable.textColor = [UIColor whiteColor];
myLable.backgroundColor = [UIColor blackColor];
[self.view addSubview:myLable];
NSLog (#"Font families: %#", myLable.font.familyName);
}
and the font not work !

As suggested by #keyur bhalodiya you have to use the font name like #"OpenSnas" for regular fonts
Create a custom label subclass of UILabel 'CustomFontLabel'
in CustomFontLabel.h define property to set the font name
#interface CustomFontLabel : UILabel
#property (nonatomic) IBInspectable NSString *overrideFontName;
#end
In the .m file add the below code
- (void)setOverrideFontName:(NSString *)overrideFontName
{
if (![_overrideFontName isEqualToString:overrideFontName])
{
_overrideFontName = overrideFontName;
self.font = self.font;
}
}
- (void)setFont:(UIFont *)font
{
NSString *overrideFontName = self.overrideFontName;
if (overrideFontName != nil)
{
font = [UIFont fontWithName:overrideFontName size:font.pointSize];
}
[super setFont:font];
}
With the IBInspectable you can even set the overrideFontName property from Storyboard also. Don't forget to set the label class to CustomLabel in the storyboard. Try that and let me know, if it's working or not..!

Related

Adding UISearchBar in UINavigationBar with constraints

All,
I want to add UISearchBar to UINavigationbar, I dont dont want to use UISearchController, Just UISearchbar programmatically and it must work in landscape as well.
I tried it is working well in Portrait well, but in Landscape, i have issues in iPhone X width. Can we use Constraints.
Below is the code
CGFloat width = [UIScreen mainScreen].bounds.size.width;
search = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, width - 2 * 44 - 2 * 15, 44)];
search.delegate = self; // search.tintColor = [UIColor redColor];
search.searchBarStyle = UISearchBarStyleMinimal;
search.placeholder = #"Search";
search.translucent = NO;
search.opaque = NO;
search.showsCancelButton = NO;
[search setBackgroundImage:[[UIImage alloc] init]];
//customize textfield inside UISearchBar
#try {
for (id object in [[[search subviews] firstObject] subviews])
{
if (object && [object isKindOfClass:[UITextField class]])
{
UITextField *textFieldObject = (UITextField *)object;
textFieldObject.backgroundColor = [UIColor whiteColor];
textFieldObject.borderStyle = UITextBorderStyleRoundedRect;
textFieldObject.layer.borderColor = (__bridge CGColorRef _Nullable)([brandingObj getValueForKey:navBarTitleColor]);
textFieldObject.layer.borderWidth = 1.0;
break;
}
}
}
#catch (NSException *exception) {
NSLog(#"Error while customizing UISearchBar");
}
#finally {
}
I don't understand why you want to use UISearchDisplayController, its highly configurable and recommended by apple, working with geometry (CGRecr, CGFrame, etc.) to adjust UIKit objects layout could be a pain, use auto layout avoiding UIKits convenience initializers, to adjust later constraints.
Anyway if you want explicitly do with this way, this should work.
#import "ViewController.h"
#interface ViewController ()<UISearchBarDelegate>
#property UISearchBar *searchbar;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
_searchbar = [UISearchBar new];
_searchbar.delegate = self;
_searchbar.searchBarStyle = UISearchBarStyleMinimal;
self.navigationItem.titleView = self.searchbar;
// Do any additional setup after loading the view, typically from a nib.
}
Maybe you should need configure appearance , take a look here
Cheers.

Creating a label in all my views in xcode

I am new at objective c and I need some help to create a label which appears in all my ViewControllers with the same text but this text will be changed constantly.
Thank you guys.
You can create Category class for this
in .h File
//
// UILabel+withString.h
//
#import <Foundation/Foundation.h>
#interface UILabel (withString)
+ (UILabel *)labelWithString:(NSString *)string
font:(UIFont *)font
color:(UIColor *)color
container:(CGRect)container
origin:(CGPoint)origin;
#end
In .m File
//
// UILabel+withString.m
//
#import "UILabel+withString.h"
#implementation UILabel (withString)
+ (UILabel *)labelWithString:(NSString *)string
font:(UIFont *)font
color:(UIColor *)color
container:(CGRect)container
origin:(CGPoint)origin {
CGSize size = [string sizeWithFont:font constrainedToSize:container.size
lineBreakMode:UILineBreakModeTailTruncation];
UILabel *label = [[[UILabel alloc]
initWithFrame:CGRectMake(origin.x, origin.y, container.size.width, size.height)] autorelease];
label.text = string;
label.font = font;
label.textColor = color;
label.textAlignment = UITextAlignmentLeft;
label.numberOfLines = 1;
label.lineBreakMode = UILineBreakModeTailTruncation;
label.backgroundColor = [UIColor clearColor];
return label;
}
#end
then in view controller you can call this

how to add lines in UITextView programmatically [duplicate]

I have a UITextView where the user can create notes and save into a plist file.
I want to be able to show lines just like a normal notebook. The problem I have is
that the text won't align properly.
The image below explains the problem quite well.
This is the background I use to create the lines like the Notes.app
This is my code for creating the background for my UITextView:
textView.font = [UIFont fontWithName:#"MarkerFelt-Thin" size:19.0];
textView.backgroundColor = [UIColor colorWithPatternImage: [UIImage imageNamed: #"Notes.png"]];
I know that the UIFont.lineHeight property is only available in > iOS 4.x.
So I wonder if there is another solution to my problem?
You should try and draw your lines programmatically rather than using an image. Here's some sample code of how you could accomplish that. You can subclass UITextView and override it's drawRect: method.
NoteView.h
#import <UIKit/UIKit.h>
#interface NoteView : UITextView <UITextViewDelegate> {
}
#end
NoteView.m
#import "NoteView.h"
#implementation NoteView
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor colorWithRed:1.0f green:1.0f blue:0.6f alpha:1.0f];
self.font = [UIFont fontWithName:#"MarkerFelt-Thin" size:19];
}
return self;
}
- (void)drawRect:(CGRect)rect {
//Get the current drawing context
CGContextRef context = UIGraphicsGetCurrentContext();
//Set the line color and width
CGContextSetStrokeColorWithColor(context, [UIColor colorWithRed:0.0f green:0.0f blue:0.0f alpha:0.2f].CGColor);
CGContextSetLineWidth(context, 1.0f);
//Start a new Path
CGContextBeginPath(context);
//Find the number of lines in our textView + add a bit more height to draw lines in the empty part of the view
NSUInteger numberOfLines = (self.contentSize.height + self.bounds.size.height) / self.font.leading;
//Set the line offset from the baseline. (I'm sure there's a concrete way to calculate this.)
CGFloat baselineOffset = 6.0f;
//iterate over numberOfLines and draw each line
for (int x = 0; x < numberOfLines; x++) {
//0.5f offset lines up line with pixel boundary
CGContextMoveToPoint(context, self.bounds.origin.x, self.font.leading*x + 0.5f + baselineOffset);
CGContextAddLineToPoint(context, self.bounds.size.width, self.font.leading*x + 0.5f + baselineOffset);
}
//Close our Path and Stroke (draw) it
CGContextClosePath(context);
CGContextStrokePath(context);
}
#end
MyViewController.h
#import <UIKit/UIKit.h>
#import "NoteView.h"
#interface MyViewController : UIViewController <UITextViewDelegate> {
NoteView *note;
}
#property (nonatomic, retain) NoteView *note;
#end
MyViewController.m
#import "MyViewController.h"
#import "NoteView.h"
#define KEYBOARD_HEIGHT 216
#implementation MyViewController
#synthesize note;
- (void)loadView {
[super loadView];
self.note = [[[NoteView alloc] initWithFrame:self.view.bounds] autorelease];
[self.view addSubview:note];
note.delegate = self;
note.text = #"This is the first line.\nThis is the second line.\nThis is the ... line.\nThis is the ... line.\nThis is the ... line.\nThis is the ... line.\nThis is the ... line.\n";
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
[note setNeedsDisplay];
}
- (void)textViewDidBeginEditing:(UITextView *)textView {
CGRect frame = self.view.bounds;
frame.size.height -= KEYBOARD_HEIGHT;
note.frame = frame;
}
- (void)textViewDidEndEditing:(UITextView *)textView {
note.frame = self.view.bounds;
}
- (void)dealloc {
[note release];
[super dealloc];
}
Take a look at Apple's documentation for Managing the Keyboard, specifically "Moving Content That Is Located Under the Keyboard". It explains how to listen for NSNotifcations and adjust your views properly.
I think the problem is with your image, the yellow space over the line is creating the problem.
You should edit the image.
And nice work.

UIPageControl doesn't properly react to taps

In my TestApp, I created a class "Carousel" which should let me create a swipe menu with a UIPageControl in an easy way (by simply creating an instance of the class Carousel).
Carousel is a subclass of UIView
At init, it creates an UIView, containing UIScrollView, UIPageControl
I can add further UIViews to the scroll view
I don't know if this is the proper way to do it, but my example worked quite well in my TestApp. Swiping between pages works perfectly and the display of the current page in the UIPageControl is correct.
If there were not one single problem: The UIPageControl sometimes reacts to clicks/taps (I only tested in Simulator so far!), sometimes it doesn't. Let's say most of the time it doesn't. I couldn't find out yet when it does, for me it's just random...
As you can see below, I added
[pageControl addTarget:self action:#selector(pageChange:) forControlEvents:UIControlEventValueChanged];
to my code. I thought this would do the proper handling of taps? But unfortunately, pageChange doesn't get always called (so the value of the UIPageControl doesn't change every time I click).
I would appreciate any input on this because I couldn't find any solution on this yet.
This is what I have so far:
Carousel.h
#import <UIKit/UIKit.h>
#interface Carousel : UIView {
UIScrollView *scrollView;
UIPageControl *pageControl;
BOOL pageControlBeingUsed;
}
- (void)addView:(UIView *)view;
- (void)setTotalPages:(NSUInteger)pages;
- (void)setCurrentPage:(NSUInteger)current;
- (void)createPageControlAt:(CGRect)cg;
- (void)createScrollViewAt:(CGRect)cg;
#end
Carousel.m
#import "Carousel.h"
#implementation Carousel
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Create a scroll view
scrollView = [[UIScrollView alloc] init];
[self addSubview:scrollView];
scrollView.delegate = (id) self;
// Init Page Control
pageControl = [[UIPageControl alloc] init];
[pageControl addTarget:self action:#selector(pageChange:) forControlEvents:UIControlEventValueChanged];
[self addSubview:pageControl];
}
return self;
}
- (IBAction)pageChange:(id)sender {
CGRect frame = scrollView.frame;
frame.origin.x = frame.size.width * pageControl.currentPage;
frame.origin.y = 0;
[scrollView scrollRectToVisible:frame animated:TRUE];
NSLog(#"%i", pageControl.currentPage);
}
- (void)addView:(UIView *)view {
[scrollView addSubview:view];
}
- (void)createPageControlAt:(CGRect)cg {
pageControl.frame = cg;
}
- (void)setTotalPages:(NSUInteger)pages {
pageControl.numberOfPages = pages;
}
- (void)setCurrentPage:(NSUInteger)current {
pageControl.currentPage = current;
}
- (void)createScrollViewAt:(CGRect)cg {
[scrollView setPagingEnabled:TRUE];
scrollView.frame = cg;
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width*pageControl.numberOfPages, scrollView.frame.size.height);
[scrollView setShowsHorizontalScrollIndicator:FALSE];
[scrollView setShowsVerticalScrollIndicator:FALSE];
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
float frac = scrollView.contentOffset.x / scrollView.frame.size.width;
NSUInteger page = lround(frac);
pageControl.currentPage = page;
}
#end
ViewController.m (somewhere in viewDidLoad)
Carousel *carousel = [[Carousel alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
for (int i=0; i<5; i++) {
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(i * 320, 0, 320, 420)];
UIColor *color;
if(i%3==0) color = [UIColor blueColor];
else if(i%3==1) color = [UIColor redColor];
else color = [UIColor purpleColor];
view.backgroundColor = color;
[carousel addView:view];
view = nil;
}
[carousel setTotalPages:5];
[carousel setCurrentPage:0];
[carousel createPageControlAt:CGRectMake(0,420,320,40)];
[carousel createScrollViewAt:CGRectMake(0,0,320,420)];
Your code is correct. Most likely the frame of your pageControl is pretty small, so theres not a lot of area to look for touch events. You would need to increase the size of the height of pageControl in order to make sure taps are recognized all of the time.

Cannot access properties of subclass

I have created the following subclass to do some custom drawing:
// DocumentIconView.h
#interface DocumentIconView : UIView
{
UIImageView *documentIconView;
CloseHandle *closeHandle;
UILabel *filenameLabel;
}
#property (nonatomic, strong) UIImageView *documentIconView;
#property (nonatomic, strong) CloseHandle *closeHandle;
#property (nonatomic, strong) UILabel *filenameLabel;
+ (DocumentIconView *)documentIconWithFrame:(CGRect)viewFrame
previewImage:(UIImage *)previewImage
title:(NSString *)title;
This works well for the most part (I can instantiate objects, and do custom drawing), however, I cannot access some of its properties from another classes.
DocumentIconView *iconView = [DocumentIconView documentIconWithFrame:frame
previewImage:[UIImage imageNamed:#"GenericDocumentIcon.png"]
title:[NSString stringWithFormat:#"test"]];
iconView.backgroundColor = [UIColor lightGrayColor]; // this works
iconView.filenameLabel.backgroundColor = [UIColor darkGrayColor]; // this does not work - no error message
[documentsView addSubview:iconView];
I can read and write first-level properties, but cannot drill deeper; when trying to read properties, the value returned is (null)
I am fairly new at subclassing, so I think I am missing something really obvious here. Any help would be greatly appreciated.
EDIT: the method for instantiating the view in question:
+ (DocumentIconView *)documentIconWithFrame:(CGRect)viewFrame
previewImage:(UIImage *)previewImage
title:(NSString *)title
{
DocumentIconView *view = [[DocumentIconView alloc] initWithFrame:viewFrame];
// Close handle's size is assigned here
CGSize closeHandleSize = CGSizeMake(27, 27);
// The document preview image's frame is calculated by shrinking it by the close handle's size
CGRect documentPreviewFrame = CGRectMake(closeHandleSize.width / 2,
closeHandleSize.height / 2,
viewFrame.size.width - closeHandleSize.width,
viewFrame.size.height - closeHandleSize.height - 20); // 20 points is the filenameLabel's height
UIImageView *documentPreviewView = [[UIImageView alloc] initWithFrame:documentPreviewFrame];
documentPreviewView.contentMode = UIViewContentModeScaleAspectFit;
documentPreviewView.backgroundColor = [UIColor clearColor];
documentPreviewView.image = previewImage;
[view addSubview:documentPreviewView];
CGRect closeHandleFrame = CGRectMake(0, 0, closeHandleSize.width, closeHandleSize.height);
CloseHandle *closeHandleView = [[CloseHandle alloc] initWithFrame:closeHandleFrame];
closeHandleView.alpha = 0.0;
closeHandleView.tag = kCloseHandleTag;
[view addSubview:closeHandleView];
CGRect filenameFrame = CGRectMake(0,
viewFrame.size.height - 20,
viewFrame.size.width,
20);
UILabel *filenameLabel = [[UILabel alloc] initWithFrame:filenameFrame];
filenameLabel.backgroundColor = [UIColor clearColor];
filenameLabel.text = title;
filenameLabel.font = [UIFont boldSystemFontOfSize:17];
filenameLabel.textColor = [UIColor whiteColor];
filenameLabel.textAlignment = UITextAlignmentCenter;
[view addSubview:filenameLabel];
view.tag = kDocumentIconTag;
return view;
}
In your documentIconWithFrame:... method you're using a local variable (filenameLabel) that you're adding to the view. That means your instance variable is never instantiated and is always nil.
Just change this:
UILabel *filenameLabel = [[UILabel alloc] initWithFrame:filenameFrame];
to this:
filenameLabel = [[UILabel alloc] initWithFrame:filenameFrame];
and the same for the other instance variables.