Android 从路径中获取文件名

Posted 2023-03-01 xiaochunzao

转载：http://androidstudy.iteye.com/blog/787560

方法一：利用String类

public String getFileName(String pathandname)
	int start=pathandname.lastIndexOf("/");
    int end=pathandname.lastIndexOf(".");
    if (start!=-1 && end!=-1) 
        return pathandname.substring(start+1, end);	
    
    else 
        return null;
    

方法二：利用正则表达式

String regEx=".+\\\\\\\\(.+)$";
    String str="C:\\\\Documents and Settings\\\\Administrator\\\\My Documents\\\\myfile.txt";
    Pattern p=Pattern.compile(regEx);
    Matcher m=p.matcher(str);
    boolean rs=m.find();
    if(rs)
       for(int i=1;i<=m.groupCount();i++) 
           System.out.println(m.group(i)); //括号内匹配内容