iPhone可用字体代码

如下代码可以用来显示iPhone系统可用的字体：

NSArray *familyNames = [UIFont familyNames];  
for( NSString *familyName in familyNames ){  
	NSArray *fontNames = [UIFont fontNamesForFamilyName:familyName];  
	for( NSString *fontName in fontNames ){  
		printf( "Font: %s \n", [fontName UTF8String] );
		[listName addObject:fontName];
	}  
}