Drawing Text（一）绘制文本

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1.Enumerating and Loading Fonts（枚举出系统字体，并正确加载）

Font families -> Font faces

-(void) enumerateFonts {

for (NSString *familyName in[UIFont familyNames]) {

NSLog(@"Font Family = %@ --",familyName);

for (NSString *fontName in[UIFont fontNamesForFamilyName:familyName]) {

NSLog(@"\t%@",fontName);

// 通过列举出的系统预定义字体，可对其进行正确加载，不会出现nil

// UIFont *font = [UIFont fontWithName:fontName size:12.0f];

}

//默认系统字休：Helvetica

+(UIFont *)systemFontOfSize:(CGFloat)fontSize;

+(UIFont *)boldSystemFontOfSize:(CGFloat)fontSize;

+(UIFont *)fontWithName:(NSString *)fontNamesize:(CGFloat)fontSize

2.绘制文本

- (void)drawAtPoint:(CGPoint)point withAttributes:(NSDictionary *)attrs

#import "View.h"

@implementation CustomerView

-(id)initWithFrame:(CGRect)frame {

self = [super initWithFrame:frame];

if(self) {

//initialization code

}

return self;

}

-(void)drawRect:(CGRect)rect {

UIFont *helveticaBold = [UIFont fontWithName:@"HelveticaNeue-Bold" size: 40.0f];

NSString *specialString = @"Special String";

[specialString drawAtPoint:CGPointMake(40,180)

withAttributes:@{ NSFontAttributeName:helveticaBold } ];

}

@end

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