label标记关键字

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可以标记多组关键字以数组方式存入

直接上代码喜欢点赞拿走不谢！

#import "lab_Search.h"

@implementation lab_Search

// Only override drawRect: if you perform custom drawing.

// An empty implementation adversely affects performance during animation.

- (void)drawRect:(CGRect)rect {

// Drawing code

}

- (NSArray *)IsChinese:(NSString *)str

{

NSArray *chineses;

NSMutableArray *mChineses = [NSMutableArrayarray];

for (int i =0; i < [str length]; ++i)

{

int a = [strcharacterAtIndex:i];

if (a >0x4e00 && a < 0x9fff)

{

[mChineses addObject:[strsubstringWithRange:(NSRange){i,1}]];

}

chineses = mChineses;

return chineses;

}

#pragma mark -- 设置关键字

-(void)attributeStringWithContent:(NSString *)content keyWords:(NSArray *)keyWords colors:(NSArray *)colors repeat:(BOOL)repeat

{

NSMutableAttributedString *attString = [[NSMutableAttributedStringalloc] initWithString:content];

if (keyWords) {

[keyWords enumerateObjectsUsingBlock:^(id obj,NSUInteger idx, BOOL *stop) {

NSMutableString *tmpString=[NSMutableStringstringWithString:content];

NSRange range=[contentrangeOfString:obj];

NSInteger location=0;

while (range.length>0) {

UIColor *color=nil;

if (!colors[0]) {

color=[UIColorcolorWithHexString:@"#00c2c9"];

}else{

color=colors[0];

}

[attString addAttribute:(NSString*)NSForegroundColorAttributeNamevalue:color range:NSMakeRange(location+range.location, range.length)];

location+=(range.location+range.length);

NSString *tmp= [tmpStringsubstringWithRange:NSMakeRange(range.location+range.length, content.length-location)];

tmpString=[NSMutableStringstringWithString:tmp];

range=[tmp rangeOfString:obj];

if (!repeat) {

break;

}

}];

}

self.attributedText = attString;

}

@end

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