[大笑][哈哈]正则表达式替换文本内容中的表情图片

将内容里的表情 [大笑] 改为图片显示

//表情处理 导入框架 #import "RegexKitLite.h"
- (void)setText:(Nsstring *)text{
    //[表情文件] ->  对应的图片名 -> <image url = '图片名'>
    //[威武]  谓词
    
    //1.加载表情配置文件
    Nsstring *faceFile = [[NSBundle mainBundle] pathForResource:@"emoticons" ofType:@"plist"];
    NSArray *faceItem = [NSArray arrayWithContentsOfFile:faceFile];
    
    //2.找到微博内容中的[表情文件]
    Nsstring *faceRegex = @"\\[\\w+\\]";
 
    //3.获取字符串中指定的字符 返回数组
    NSArray *faceArray = [text componentsMatchedByRegex:faceRegex];
    
    for (Nsstring *faceName in faceArray) {
        
        //1.@"[兔子]",->   001.png
        Nsstring *t = [Nsstring stringWithFormat:@"self.chs='%@'",faceName];
        nspredicate *predicate = [nspredicate predicateWithFormat:t];
        NSArray *items = [faceItem filteredArrayUsingPredicate:predicate];
        
        //判断如果有元素符合
        if(items.count > 0) {
            NSDictionary *faceDic = items[0];
            
            //取得对应的图片
            Nsstring *imgName = faceDic[@"png"];
            
            //2.图片的名字 -> <image url = '图片名'>
            Nsstring *replaceStr = [Nsstring stringWithFormat:@"<image url = '%@'>",imgName];
            
            //3.替换字符串
            _text = [text stringByReplacingOccurrencesOfString:faceName withString:replaceStr];
        }
        
    }

}

// 微博内容

self.text.text = sModel.text;

//使用方法计算高度

float height = [WXLabelgetTextHeight:TextFontwidth:contentLabelMaxW text:status.text];

链接: http://pan.baidu.com/s/1sjyuDu1 密码: zk7m

表情包：链接: http://pan.baidu.com/s/1BFMX4 密码: 5dyj

注意：使用WXLable后有报错的话 注释掉这些

// if (image) {

// CGRect imageDrawRect;

//#warning 设置图片的大小

// imageDrawRect.size = CGSizeMake(self.font.pointSize * 1.2,self.font.pointSize * 1.2);

// imageDrawRect.origin.x = runRect.origin.x + lineOrigin.x;

// imageDrawRect.origin.y = lineOrigin.y - self.font.pointSize * .2;

// CGContextDrawImage(context,imageDrawRect,image.CGImage);

// // imageDrawRect.size = CGSizeMake(image.size.height,image.size.height);

// // imageDrawRect.origin.x = runRect.origin.x + lineOrigin.x;

// // imageDrawRect.origin.y = lineOrigin.y - 8;

// // CGContextDrawImage(context,image.CGImage);

// }