前奏：先去iconfont里面下載資源
- 打開下載的文件夾找到
.tff文件直接拖到工程中
1.jpeg - 檢查
.tff資源文件是否導入成功
2.jpeg - 在
plist文件中加入iconfont字體
3.jpeg - 最后借助淘點點科技寫的一個關于
iconfont封裝，方便我們使用iconfont。
4.jpeg
TBCityIconInfo.h
#import "UIImage+TBCityIconFont.h"
#import "TBCityIconInfo.h"
#define TBCityIconInfoMake(text, imageSize, imageColor) [TBCityIconInfo iconInfoWithText:text size:imageSize color:imageColor]
@interface TBCityIconFont : NSObject
+ (UIFont *)fontWithSize: (CGFloat)size;
+ (void)setFontName:(NSString *)fontName;
@end
TBCityIconFont.m
#import "TBCityIconFont.h"
#import <CoreText/CoreText.h>
@implementation TBCityIconFont
static NSString *_fontName;
+ (void)registerFontWithURL:(NSURL *)url {
NSAssert([[NSFileManager defaultManager] fileExistsAtPath:[url path]], @"Font file doesn't exist");
CGDataProviderRef fontDataProvider = CGDataProviderCreateWithURL((__bridge CFURLRef)url);
CGFontRef newFont = CGFontCreateWithDataProvider(fontDataProvider);
CGDataProviderRelease(fontDataProvider);
CTFontManagerRegisterGraphicsFont(newFont, nil);
CGFontRelease(newFont);
}
+ (UIFont *)fontWithSize:(CGFloat)size {
UIFont *font = [UIFont fontWithName:[self fontName] size:size];
if (font == nil) {
NSURL *fontFileUrl = [[NSBundle mainBundle] URLForResource:[self fontName] withExtension:@"ttf"];
[self registerFontWithURL: fontFileUrl];
font = [UIFont fontWithName:[self fontName] size:size];
NSAssert(font, @"UIFont object should not be nil, check if the font file is added to the application bundle and you're using the correct font name.");
}
return font;
}
+ (void)setFontName:(NSString *)fontName {
_fontName = fontName;
}
+ (NSString *)fontName {
return _fontName ? : @"iconfont";
}
@end
TBCityIconInfo.h
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface TBCityIconInfo : NSObject
@property (nonatomic, strong) NSString *text;
@property (nonatomic, assign) NSInteger size;
@property (nonatomic, strong) UIColor *color;
- (instancetype)initWithText:(NSString *)text size:(NSInteger)size color:(UIColor *)color;
+ (instancetype)iconInfoWithText:(NSString *)text size:(NSInteger)size color:(UIColor *)color;
@end
TBCityIconInfo.m
#import "TBCityIconInfo.h"
@implementation TBCityIconInfo
- (instancetype)initWithText:(NSString *)text size:(NSInteger)size color:(UIColor *)color {
if (self = [super init]) {
self.text = text;
self.size = size;
self.color = color;
}
return self;
}
+ (instancetype)iconInfoWithText:(NSString *)text size:(NSInteger)size color:(UIColor *)color {
return [[TBCityIconInfo alloc] initWithText:text size:size color:color];
}
@end
UIImage+TBCityIconFont.h
#import <UIKit/UIKit.h>
#import "TBCityIconInfo.h"
@interface UIImage (TBCityIconFont)
+ (UIImage *)iconWithInfo:(TBCityIconInfo *)info;
@end
UIImage+TBCityIconFont.m
#import "UIImage+TBCityIconFont.h"
#import "TBCityIconFont.h"
#import <CoreText/CoreText.h>
@implementation UIImage (TBCityIconFont)
+ (UIImage *)iconWithInfo:(TBCityIconInfo *)info {
CGFloat size = info.size;
CGFloat scale = [UIScreen mainScreen].scale;
CGFloat realSize = size * scale;
UIFont *font = [TBCityIconFont fontWithSize:realSize];
UIGraphicsBeginImageContext(CGSizeMake(realSize, realSize));
CGContextRef context = UIGraphicsGetCurrentContext();
if ([info.text respondsToSelector:@selector(drawAtPoint:withAttributes:)]) {
/**
* 如果這里拋出異常胖腾，請打開斷點列表归薛，右擊All Exceptions -> Edit Breakpoint -> All修改為Objective-C
* See: http://stackoverflow.com/questions/1163981/how-to-add-a-breakpoint-to-objc-exception-throw/14767076#14767076
*/
[info.text drawAtPoint:CGPointZero withAttributes:@{NSFontAttributeName:font, NSForegroundColorAttributeName: info.color}];
} else {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
CGContextSetFillColorWithColor(context, info.color.CGColor);
[info.text drawAtPoint:CGPointMake(0, 0) withFont:font];
#pragma clang pop
}
UIImage *image = [UIImage imageWithCGImage:UIGraphicsGetImageFromCurrentImageContext().CGImage scale:scale orientation:UIImageOrientationUp];
UIGraphicsEndImageContext();
return image;
}
@end
在ViewController.m中實現(xiàn)
#import "ViewController.h"
#import "TBCityIconFont.h"
#import "UIImage+TBCityIconFont.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *imgView;
@property (weak, nonatomic) IBOutlet UILabel *lab;
@property (weak, nonatomic) IBOutlet UIButton *btn;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
_imgView.image = [UIImage iconWithInfo:TBCityIconInfoMake(@"\U0000e605", 40, [UIColor magentaColor])];
_lab.font = [UIFont fontWithName:@"iconfont" size:14];
_lab.text = @"在lable上顯示 \U0000e624";
_lab.textColor = [UIColor purpleColor];
_btn.titleLabel.font = [UIFont fontWithName:@"iconfont" size:16];
[_btn setTitle:@"\U0000e622 button with image \U0000e623" forState:UIControlStateNormal];
}
效果圖
5.jpeg
注意： iOS使用iconfont官方鏈接
- 所用到的
unicode編碼需要自己手動將&#xXXXX格式轉換成\UXXXXXXXX格式，例如//圖標編碼是智政，需要轉成\U0000e605 - 所有需要的unicode編碼都可以在下載的
iconfont文件夾中的.html文件打開查看 - 下載的
iconfont文件夾中有三個.html找到demo_unicode.html這個歌打開 - 官方也說明了
unicode引用iconfont顯示的圖片只能是純色只磷，畢竟是用文字形式展示的，這么一想也是比較好理解的射众。要想顯示多色的可以嘗試一下使用svg格式。但是iOS系統(tǒng)本身比支持加載這種格式晃财，好在SVGKit這個第三發(fā)可以叨橱。
