IOS实现邮箱模糊匹配的功能

/**
*
*1.通过xib创建只需要赋值此参数即可
*@param mailTypeArray邮箱匹配类型
*
*/@property(nonatomic,strong)NSMutableArray*mailTypeArray;

self.textField.mailTypeArray= [NSMutableArrayarrayWithObjects:@"@qq.com",@"@163.com",@"@126.com",@"@yahoo.com",@"@139.com",@"@henu.com",nil];

/**
*Optional匹配的邮箱类型后缀默认是RGB为170 170 170的颜色，可自行设置
*/@property(nonatomic,strong)UIColor* mailMatchColor;

/**
*2.通过手写创建textField时候调用
*
*@param frameframe大小
*@param fontSize textField大小
*
*@return self
*/- (instancetype)initWithFrame:(CGRect)frame fontSize:(CGFloat)fontSize;

XLTextField * field = [[XLTextField alloc] initWithFrame:CGRectMake(100, 200, 200, 30) fontSize:12];
field.placeholder = @"输入邮箱地址";
field.mailTypeArray = [NSMutableArray arrayWithObjects:@"@qq.com",@"@163.com",@"@126.com",@"@yahoo.com",@"@139.com",@"@henu.com", nil];
field.mailMatchColor = [UIColor redColor]; 可选属性
[self.view addSubview:field];

- (instancetype)init__attribute__((unavailable("init方法不可用，请用initWithName:fontSzie:")));+ (instancetype)new__attribute__((unavailable("init方法不可用，请用initWithName:fontSzie:")));

/**
*匹配邮箱过程
*
*@param rangerange
*@param string用户输入string
*/- (void)configMailMatchingRange:(NSRange)range replacementString:(NSString*)string
{//获取完整的输入文本NSString*completeStr = [self.textstringByReplacingCharactersInRange:rangewithString:string];//以@符号分割文本NSArray*temailArray = [completeStrcomponentsSeparatedByString:@"@"];//获取邮箱前缀NSString*emailString = [temailArrayfirstObject];//邮箱匹配没有输入@符号时用@匹配NSString*matchString =@"@";if(temailArray.count>1){//如果已经输入@符号截取@符号以后的字符串作为匹配字符串matchString = [completeStrsubstringFromIndex:emailString.length];
}//匹配邮箱得到所有跟当前输入匹配的邮箱后缀NSMutableArray*suffixArray = [selfcheckEmailStr:matchString];//边界控制如果没有跟当前输入匹配的后缀置为@""NSString*fixStr = suffixArray.count>0? [suffixArrayfirstObject] :@"";//将lblEmail部分字段隐藏NSIntegercutLenth = suffixArray.count>0? completeStr.length: emailString.length;//最终的邮箱地址self.email= fixStr.length>0? [NSStringstringWithFormat:@"%@%@",emailString,fixStr] : completeStr;//设置lblEmail的attributeNSMutableAttributedString*attributeString = [[NSMutableAttributedStringalloc]initWithString:[NSStringstringWithFormat:@"%@%@",emailString,fixStr]];

[attributeStringaddAttribute:NSForegroundColorAttributeNamevalue:[UIColorclearColor]range:NSMakeRange(0,cutLenth)];self.mailLabel.attributedText= attributeString;//清空文本框内容时隐藏lblEmailif(completeStr.length==0){self.mailLabel.text=@"";self.email=@"";
}
}