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iOS开发 - 第05篇 - 项目 - 12 - 图文混排

2016-08-25 21:41 134 查看

1、首页微博文字处理

对于之前微博项目中首页:微博文字中的用户名、话题、链接等文字需要高亮显示,表情字符串需要显示对应表情。

思路:

1>之前微博中的文字使用NSString,要达到不同文字的高亮显示,需要使用NSAttributedString

2>微博模型中增加一个属性,代表属性字符串

/** string     微博信息内容*/

@property(nonatomic, copy) NSString *text;

/** string     微博信息内容 -- 带有属性的(特殊文字会高亮显示\显示表情)*/

@property(nonatomic, copy) NSAttributedString *attributedText;

3> 重写text的setter方法,只要外面传进来text,就在里面算出带属性的文字attributedText

4>在HWStatusCell的setStatusFrame:方法中

self.contentLabel.attributedText = status.attributedText;

关键:利用text算出attributedText!!!

2、正则表达式

正则表达式作用:

1.判断字符串是否符合某个特定规则

* 判断某个字符串是否为QQ号码\电话号码\邮箱

2.截取字符串中符合某个特定规则的内容

* 截取@"#呵呵呵#[偷笑]5345http://foo.com/blah_blah #解放军# 58937985"的所有话题\表情\链接

关于正则表达式的规则用法可参考:点击打开链接

1> 正则表达式的基本使用: 

/**
使用正则表达式的步骤:
1.创建一个正则表达式对象:定义规则

2.利用正则表达式对象 来测试 相应的字符串
*/

// Pattern : 样式\规则
// NSString *pattern = @"ab7";
// [] : 找到内部的某一个字符即可
// NSString *pattern = @"[0123456789]";
// NSString *pattern = @"[0-9]";
// NSString *pattern = @"[a-zA-Z0-9]";
// NSString *pattern = @"[0-9][0-9]";
// NSString *pattern = @"\\d\\d\\d";
// NSString *pattern = @"\\d{2,4}";
// ? + *
// ? : 0个或者1个
// + : 至少1个
// * : 0个或者多个

NSString *username = @"6gjkhdjkhgkjh7";

// 1.创建正则表达式
NSString *pattern = @"^\\d.*\\d$";
NSRegularExpression *regex = [[NSRegularExpression alloc] initWithPattern:pattern options:0 error:nil];

// 2.测试字符串
NSArray *results = [regex matchesInString:username options:0 range:NSMakeRange(0, username.length)];

NSLog(@"%zd", results.count);


2> 利用正则表达式找出微博文字中的关键字

NSString *str = @"#呵呵呵#[偷笑] http://foo.com/blah_blah #解放军#//http://foo.com/blah_blah
@Ring花椰菜:就#范德萨发生的#舍不得打[test] 就惯#急急急#着他吧[挖鼻屎]//@崔西狮:小拳头举起又放下了
说点啥好呢…… //@toto97:@崔西狮 蹦米咋不揍他#哈哈哈# http://foo.com/blah_blah"; 
// 创建规则
// 表情的规则
NSString *emotionPattern = @"\\[[0-9a-zA-Z\\u4e00-\\u9fa5]+\\]";

// @的规则
NSString *atPattern = @"@[0-9a-zA-Z\\u4e00-\\u9fa5]+";

// #话题#的规则
NSString *topicPattern = @"#[0-9a-zA-Z\\u4e00-\\u9fa5]+#";

// url链接的规则
NSString *urlPattern = @"\\b(([\\w-]+://?|www[.])[^\\s()<>]+(?:\\([\\w\\d]+\\)|([^[:punct:]\\s]|/)))";

// | 匹配多个条件,相当于or\或
NSString *pattern = [NSString stringWithFormat:@"%@|%@|%@|%@", emotionPattern, atPattern, topicPattern, urlPattern];

// 1.创建正则表达式
NSRegularExpression *regex = [[NSRegularExpression alloc] initWithPattern:pattern options:0 error:nil];
// 2.测试字符串
NSArray *results = [regex matchesInString:str options:0 range:NSMakeRange(0, str.length)];

// 3.遍历结果
for (NSTextCheckingResult *result in results) {
NSLog(@"%@ %@", NSStringFromRange(result.range), [str substringWithRange:result.range]);
}


3> 使用第三方框架RegexKitLite

注1:该框架为非ARC,使用-fno-objc-arc

注2:添加libicucor.dylib

NSString *str = @"#呵呵呵#[偷笑] http://foo.com/blah_blah #解放军#//http://foo.com/blah_blah
@Ring花椰菜:就#范德萨发生的#舍不得打[test] 就惯#急急急#着他吧[挖鼻屎]//@崔西狮:小拳头举起又放下了
说点啥好呢…… //@toto97:@崔西狮 蹦米咋不揍他#哈哈哈# http://foo.com/blah_blah"; 
// 表情的规则
NSString *emotionPattern = @"\\[[0-9a-zA-Z\\u4e00-\\u9fa5]+\\]";
// @的规则
NSString *atPattern = @"@[0-9a-zA-Z\\u4e00-\\u9fa5]+";
// #话题#的规则
NSString *topicPattern = @"#[0-9a-zA-Z\\u4e00-\\u9fa5]+#";
// url链接的规则
NSString *urlPattern = @"\\b(([\\w-]+://?|www[.])[^\\s()<>]+(?:\\([\\w\\d]+\\)|([^[:punct:]\\s]|/)))";
NSString *pattern = [NSString stringWithFormat:@"%@|%@|%@|%@", emotionPattern, atPattern, topicPattern, urlPattern];
// NSArray *cmps = [str componentsMatchedByRegex:pattern];

// 遍历所有的匹配结果
[str enumerateStringsMatchedByRegex:pattern usingBlock:^(NSInteger captureCount, NSString *const
__unsafe_unretained *capturedStrings, const NSRange *capturedRanges, volatile BOOL *const stop) {
NSLog(@"%@ %@", *capturedStrings, NSStringFromRange(*capturedRanges));
}];

// 以正则表达式为分隔符,找出所有非关键字
[str enumerateStringsSeparatedByRegex:pattern usingBlock:^(NSInteger captureCount, NSString *const
__unsafe_unretained *capturedStrings, const NSRange *capturedRanges, volatile BOOL *const stop) {
NSLog(@"%@ %@", *capturedStrings, NSStringFromRange(*capturedRanges));
}];

3、微博文字图文混排

3.1 关键字高亮显示

1>重写HWStatus中text的setter方法



2>转发微博文字处理

注:转发微博是由转发微博用户名和转发微博位子组成,用户名也要处理

微博模型添加转发微博文字属性

/** 被转发的原微博信息字段,当该微博为转发微博时返回 */

@property(nonatomic, strong) HWStatus *retweeted_status;

/** 被转发的原微博信息内容 -- 带有属性的(特殊文字会高亮显示\显示表情)*/

@property(nonatomic, copy) NSAttributedString *retweetedAttributedText;

重写HWStatus中retweeted_status的setter方法,算出retweetedAttributedText

3.2 文字中的表情

注意点:

注1:对于attributedText的字体设置,不能直接使用label.font来设置,这样无效,必须使用addAttribute:

[attributedTextaddAttribute:NSFontAttributeName value:font range:…];

注2:不能使用insertAttributeString: atIndex:或者replaceAttributeString:两个方法,因为一旦前面的文字替换成表情,[微笑]有四个字符,微笑表情只有一个字符会导致后面的index都变掉,不能正确插入或者替换!!!

注3:将微博打散,文字和表情分别取出来,再进行拼接!!!

注4:每一个打散碎片文字都有一个文字和一个范围,添加一个HWTextPart模型,将微博文字遍历后存放到模型数组中

注5:对数组中的模型进行排序,再进行拼接,设置表情、文字、关键字等

注6:根据表情文字找到对应的表情图片,使用之前的HWEmotionTool,添加寻找方法

1> HWTextPart

#import <Foundation/Foundation.h>

@interface HWTextPart : NSObject
/** 这段文字的内容 */
@property (nonatomic, copy) NSString *text;
/** 这段文字的范围 */
@property (nonatomic, assign) NSRange range;
/** 是否为特殊文字 */
@property (nonatomic, assign, getter = isSpecical) BOOL special;
/** 是否为表情 */
@property (nonatomic, assign, getter = isEmotion) BOOL emotion;
@end


2> HWEmotionTool

#import <Foundation/Foundation.h>
@class HWEmotion;

@interface HWEmotionTool : NSObject
+ (void)addRecentEmotion:(HWEmotion *)emotion;
+ (NSArray *)recentEmotions;
+ (NSArray *)defaultEmotions;
+ (NSArray *)lxhEmotions;
+ (NSArray *)emojiEmotions;

/**
*  通过表情描述找到对应的表情
*
*  @param chs 表情描述
*/
+ (HWEmotion *)emotionWithChs:(NSString *)chs;

@end
// 最近表情的存储路径
#define HWRecentEmotionsPath [[NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"emotions.archive"]

#import "HWEmotionTool.h"
#import "HWEmotion.h"
#import "MJExtension.h"

@implementation HWEmotionTool

static NSMutableArray *_recentEmotions;

+ (void)initialize
{
_recentEmotions = [NSKeyedUnarchiver unarchiveObjectWithFile:HWRecentEmotionsPath];
if (_recentEmotions == nil) {
_recentEmotions = [NSMutableArray array];
}
}

+ (HWEmotion *)emotionWithChs:(NSString *)chs
{
NSArray *defaults = [self defaultEmotions];
for (HWEmotion *emotion in defaults) {
if ([emotion.chs isEqualToString:chs]) return emotion;
}

NSArray *lxhs = [self lxhEmotions];
for (HWEmotion *emotion in lxhs) {
if ([emotion.chs isEqualToString:chs]) return emotion;
}

return nil;
}

+ (void)addRecentEmotion:(HWEmotion *)emotion
{
// 删除重复的表情
[_recentEmotions removeObject:emotion];

// 将表情放到数组的最前面
[_recentEmotions insertObject:emotion atIndex:0];

// 将所有的表情数据写入沙盒
[NSKeyedArchiver archiveRootObject:_recentEmotions toFile:HWRecentEmotionsPath];
}

/**
*  返回装着HWEmotion模型的数组
*/
+ (NSArray *)recentEmotions
{
return _recentEmotions;
}

static NSArray *_emojiEmotions, *_defaultEmotions, *_lxhEmotions;
+ (NSArray *)emojiEmotions
{
if (!_emojiEmotions) {
NSString *path = [[NSBundle mainBundle] pathForResource:@"EmotionIcons/emoji/info.plist" ofType:nil];
_emojiEmotions = [HWEmotion objectArrayWithKeyValuesArray:[NSArray arrayWithContentsOfFile:path]];
}
return _emojiEmotions;
}

+ (NSArray *)defaultEmotions
{
if (!_defaultEmotions) {
NSString *path = [[NSBundle mainBundle] pathForResource:@"EmotionIcons/default/info.plist" ofType:nil];
_defaultEmotions = [HWEmotion objectArrayWithKeyValuesArray:[NSArray arrayWithContentsOfFile:path]];
}
return _defaultEmotions;
}

+ (NSArray *)lxhEmotions
{
if (!_lxhEmotions) {
NSString *path = [[NSBundle mainBundle] pathForResource:@"EmotionIcons/lxh/info.plist" ofType:nil];
_lxhEmotions = [HWEmotion objectArrayWithKeyValuesArray:[NSArray arrayWithContentsOfFile:path]];
}
return _lxhEmotions;
}
@end


3> HWStatus

#import "HWStatus.h"
#import "MJExtension.h"
#import "HWPhoto.h"
#import "HWUser.h"
#import "HWTextPart.h"
#import "RegexKitLite.h"
#import "HWEmotion.h"
#import "HWEmotionTool.h"

@implementation HWStatus
- (NSDictionary *)objectClassInArray
{
return @{@"pic_urls" : [HWPhoto class]};
}

/**
*  普通文字 --> 属性文字
*
*  @param text 普通文字
*
*  @return 属性文字
*/
- (NSAttributedString *)attributedTextWithText:(NSString *)text
{
NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] init];

// 表情的规则
NSString *emotionPattern = @"\\[[0-9a-zA-Z\\u4e00-\\u9fa5]+\\]";
// @的规则
NSString *atPattern = @"@[0-9a-zA-Z\\u4e00-\\u9fa5-_]+";
// #话题#的规则
NSString *topicPattern = @"#[0-9a-zA-Z\\u4e00-\\u9fa5]+#";
// url链接的规则
NSString *urlPattern = @"\\b(([\\w-]+://?|www[.])[^\\s()<>]+(?:\\([\\w\\d]+\\)|([^[:punct:]\\s]|/)))";
NSString *pattern = [NSString stringWithFormat:@"%@|%@|%@|%@", emotionPattern, atPattern, topicPattern, urlPattern];

// 遍历所有的特殊字符串
NSMutableArray *parts = [NSMutableArray array];
[text enumerateStringsMatchedByRegex:pattern usingBlock:^(NSInteger captureCount, NSString *const
__unsafe_unretained *capturedStrings, const NSRange *capturedRanges, volatile BOOL *const stop) {
if ((*capturedRanges).length == 0) return;

HWTextPart *part = [[HWTextPart alloc] init];
part.special = YES;
part.text = *capturedStrings;
part.emotion = [part.text hasPrefix:@"["] && [part.text hasSuffix:@"]"];
part.range = *capturedRanges;
[parts addObject:part];
}];
// 遍历所有的非特殊字符
[text enumerateStringsSeparatedByRegex:pattern usingBlock:^(NSInteger captureCount, NSString *const
__unsafe_unretained *capturedStrings, const NSRange *capturedRanges, volatile BOOL *const stop) {
if ((*capturedRanges).length == 0) return;

HWTextPart *part = [[HWTextPart alloc] init];
part.text = *capturedStrings;
part.range = *capturedRanges;
[parts addObject:part];
}];

// 排序
// 系统是按照从小 -> 大的顺序排列对象
[parts sortUsingComparator:^NSComparisonResult(HWTextPart *part1, HWTextPart *part2) {
// NSOrderedAscending = -1L, NSOrderedSame, NSOrderedDescending
// 返回NSOrderedSame:两个一样大
// NSOrderedAscending(升序):part2>part1
// NSOrderedDescending(降序):part1>part2
if (part1.range.location > part2.range.location) {
// part1>part2
// part1放后面, part2放前面
return NSOrderedDescending;
}
// part1<part2
// part1放前面, part2放后面
return NSOrderedAscending;
}];

UIFont *font = [UIFont systemFontOfSize:15];
// 按顺序拼接每一段文字
for (HWTextPart *part in parts) {
// 等会需要拼接的子串
NSAttributedString *substr = nil;
if (part.isEmotion) { // 表情
NSTextAttachment *attch = [[NSTextAttachment alloc] init];
NSString *name = [HWEmotionTool emotionWithChs:part.text].png;
if (name) { // 能找到对应的图片
attch.image = [UIImage imageNamed:name];
attch.bounds = CGRectMake(0, -3, font.lineHeight, font.lineHeight);
substr = [NSAttributedString attributedStringWithAttachment:attch];
} else { // 表情图片不存在
substr = [[NSAttributedString alloc] initWithString:part.text];
}
} else if (part.special) { // 非表情的特殊文字
substr = [[NSAttributedString alloc] initWithString:part.text
attributes:@{ NSForegroundColorAttributeName : [UIColor redColor] }];
} else { // 非特殊文字
substr = [[NSAttributedString alloc] initWithString:part.text];
}
[attributedText appendAttributedString:substr];
}

// 一定要设置字体,保证计算出来的尺寸是正确的
[attributedText addAttribute:NSFontAttributeName value:font range:NSMakeRange(0, attributedText.length)];

return attributedText;
}

- (void)setText:(NSString *)text
{
_text = [text copy];

// 利用text生成attributedText
self.attributedText = [self attributedTextWithText:text];
}

- (void)setRetweeted_status:(HWStatus *)retweeted_status
{
_retweeted_status = retweeted_status;

NSString *retweetContent = [NSString stringWithFormat:@"@%@ : %@", retweeted_status.user.name, retweeted_status.text];
self.retweetedAttributedText = [self attributedTextWithText:retweetContent];
}

4、监听点击

4.1 自定义HWStatusTextView

实现:对关键字点击实现高亮显示



关键:首先判断手指是否在关键字上,其次算出关键字的范围,最后设置高亮背景!!!

注1:利用UILabel不能根据文字找出文字对应的尺寸范围,利用UITextView可以实现,自定义HWStatusTextView!

注2:textView默认会有内边距,需要取消

注3:

self.editable = NO;

self.textContainerInset =UIEdgeInsetsMake(0, -5, 0, -5);

//
禁止滚动,让文字完全显示出来


self.scrollEnabled = NO;

4.2 HWStatusTextView点击

注1:找出关键字在textView的范围,可以使用textView的selectedRange属性,再通过selectionRectsForRange:方法!!!

注2:找出关键字的range,自定义HWSpecial模型

#import <Foundation/Foundation.h>

@interface HWSpecial : NSObject
/** 这段特殊文字的内容 */
@property (nonatomic, copy) NSString *text;
/** 这段特殊文字的范围 */
@property (nonatomic, assign) NSRange range;
@end


注3:在HWStatus中拼接字符串时,计算每个字符串中的特殊文字,将HWSpecial模型数组绑定到attributedText中,就可以在textView中根据Key取出特殊字符串!!!

UIFont *font = [UIFont systemFontOfSize:15];
NSMutableArray *specials = [NSMutableArray array];
// 按顺序拼接每一段文字
for (HWTextPart *part in parts) {
// 等会需要拼接的子串
NSAttributedString *substr = nil;
if (part.isEmotion) { // 表情
NSTextAttachment *attch = [[NSTextAttachment alloc] init];
NSString *name = [HWEmotionTool emotionWithChs:part.text].png;
if (name) { // 能找到对应的图片
attch.image = [UIImage imageNamed:name];
attch.bounds = CGRectMake(0, -3, font.lineHeight, font.lineHeight);
substr = [NSAttributedString attributedStringWithAttachment:attch];
} else { // 表情图片不存在
substr = [[NSAttributedString alloc] initWithString:part.text];
}
} else if (part.special) { // 非表情的特殊文字
substr = [[NSAttributedString alloc] initWithString:part.text attributes:@{
NSForegroundColorAttributeName : [UIColor redColor]
}];

// 创建特殊对象
HWSpecial *s = [[HWSpecial alloc] init];
s.text = part.text;
NSUInteger loc = attributedText.length;
NSUInteger len = part.text.length;
s.range = NSMakeRange(loc, len);
[specials addObject:s];
} else { // 非特殊文字
substr = [[NSAttributedString alloc] initWithString:part.text];
}
[attributedText appendAttributedString:substr];
}

// 一定要设置字体,保证计算出来的尺寸是正确的
[attributedText addAttribute:NSFontAttributeName value:font range:NSMakeRange(0, attributedText.length)];
[attributedText addAttribute:@"specials" value:specials range:NSMakeRange(0, 1)];


注4:HWStatusTextView中处理如下:

#import "HWStatusTextView.h"
#import "HWSpecial.h"

#define HWStatusTextViewCoverTag 999

@implementation HWStatusTextView

- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor clearColor];
self.editable = NO;
self.textContainerInset = UIEdgeInsetsMake(0, -5, 0, -5);
// 禁止滚动, 让文字完全显示出来
self.scrollEnabled = NO;
}
return self;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
// 触摸对象
UITouch *touch = [touches anyObject];

// 触摸点
CGPoint point = [touch locationInView:self];

NSArray *specials = [self.attributedText attribute:@"specials" atIndex:0 effectiveRange:NULL];
BOOL contains = NO;

for (HWSpecial *special in specials) {
self.selectedRange = special.range;
// self.selectedRange --影响--> self.selectedTextRange
// 获得选中范围的矩形框
NSArray *rects = [self selectionRectsForRange:self.selectedTextRange];
// 清空选中范围
self.selectedRange = NSMakeRange(0, 0);

for (UITextSelectionRect *selectionRect in rects) {
CGRect rect = selectionRect.rect;
if (rect.size.width == 0 || rect.size.height == 0) continue;

if (CGRectContainsPoint(rect, point)) { // 点中了某个特殊字符串
contains = YES;
break;
}
}

if (contains) {
for (UITextSelectionRect *selectionRect in rects) {
CGRect rect = selectionRect.rect;
if (rect.size.width == 0 || rect.size.height == 0) continue;

UIView *cover = [[UIView alloc] init];
cover.backgroundColor = [UIColor greenColor];
cover.frame = rect;
cover.tag = HWStatusTextViewCoverTag;
cover.layer.cornerRadius = 5;
[self insertSubview:cover atIndex:0];
}

break;
}
}
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self touchesCancelled:touches withEvent:event];
});
}

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
// 去掉特殊字符串后面的高亮背景
for (UIView *child in self.subviews) {
if (child.tag == HWStatusTextViewCoverTag) [child removeFromSuperview];
}
}
@end

5、代码重构

/**
* 获取特殊字符串rect数组
*/
- (void)setupSpecialRects
{
NSArray *specials = [self.attributedText attribute:@"specials" atIndex:0 effectiveRange:NULL];
for (HWSpecial *special in specials) {
self.selectedRange = special.range;
// self.selectedRange --影响--> self.selectedTextRange
// 获得选中范围的矩形框
NSArray *selectionRects = [self selectionRectsForRange:self.selectedTextRange];
// 清空选中范围
self.selectedRange = NSMakeRange(0, 0);

NSMutableArray *rects = [NSMutableArray array];
for (UITextSelectionRect *selectionRect in selectionRects) {
CGRect rect = selectionRect.rect;
if (rect.size.width == 0 || rect.size.height == 0) continue;

// 添加rect
[rects addObject:[NSValue valueWithCGRect:rect]];
}
special.rects = rects;
}
}

/**
* 找出被触摸的特殊字符串
*/
- (HWSpecial *)touchingSpecialWithPoint:(CGPoint)point
{
NSArray *specials = [self.attributedText attribute:@"specials" atIndex:0 effectiveRange:NULL];
for (HWSpecial *special in specials) {
for (NSValue *rectValue in special.rects) {
if (CGRectContainsPoint(rectValue.CGRectValue, point)) { // 点中了某个特殊字符串
return special;
}
}
}
return nil;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
// 触摸对象
UITouch *touch = [touches anyObject];

// 触摸点
CGPoint point = [touch locationInView:self];

// 初始化矩形框
[self setupSpecialRects];

// 根据触摸点获得被触摸的特殊字符串
HWSpecial *special = [self touchingSpecialWithPoint:point];

// 在被触摸的特殊字符串后面显示一段高亮的背景
for (NSValue *rectValue in special.rects) {
// 在被触摸的特殊字符串后面显示一段高亮的背景
UIView *cover = [[UIView alloc] init];
cover.backgroundColor = [UIColor greenColor];
cover.frame = rectValue.CGRectValue;
cover.tag = HWStatusTextViewCoverTag;
cover.layer.cornerRadius = 5;
[self insertSubview:cover atIndex:0];
}
}

6、事件处理

注:上述做法,textView拦截了所有的触摸事件,即点击了textView,事件不会交给cell去处理,实际应用中,点击cell,还需要跳转微博详情,即交给cell去处理cell点击事件,因此需要修改textView的事件处理,再点击关键字的时候交给textView处理,其余情况下交给cell去处理!!!

触摸事件的处理

1.判断触摸点在谁身上:调用所有UI控件的-(BOOL)pointInside:(CGPoint)point
withEvent:(UIEvent *)event


2.pointInside返回YES的控件就是触摸点所在的UI控件

3.由触摸点所在的UI控件选出处理事件的UI控件:调用-
(UIView*)hitTest:(CGPoint)point withEvent:(UIEvent *)event


//- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
//{
//    return [super hitTest:point withEvent:event];
//}

/**
* 告诉系统:触摸点point是否在这个UI控件身上
*/
- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
// 初始化矩形框
[self setupSpecialRects];

// 根据触摸点获得被触摸的特殊字符串
HWSpecial *special = [self touchingSpecialWithPoint:point];

return special : YES ? NO;
}
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