NSString *cachePath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES).firstObject;

NSLog(@"源文件目录： %@", cachePath);

NSString * fontPath = [NSString stringWithFormat:@"%@/%@",cachePath, @"xxx.ttf"];

CGDataProviderRef fontDataProvider = CGDataProviderCreateWithFilename([fontPath UTF8String]);

CGFontRef customfont = CGFontCreateWithDataProvider(fontDataProvider);

CGDataProviderRelease(fontDataProvider);

NSString *fontName = (__bridge NSString *)CGFontCopyFullName(customfont);

CFErrorRef error;

CTFontManagerRegisterGraphicsFont(customfont, &error);

if (error){

// 为了可以重复注册

CTFontManagerUnregisterGraphicsFont(customfont, &error);

CTFontManagerRegisterGraphicsFont(customfont, &error);

}

CGFontRelease(customfont);

UIFont *font = [UIFont fontWithName:fontName size:28];