android平台上的文件下载,文件和文件的操作(2)

        out=new FileOutputStream(file); 
        byte[] buffer=new byte[4*1024]; 
        while(in.read(buffer)!=-1){ 
            out.write(buffer); 
 
        } 
         
        } catch (IOException e) { 
            // TODO Auto-generated catch block 
            e.printStackTrace(); 
        }finally{ 
            try { 
                if(out!=null) 
                out.close(); 
                if(in!=null) 
                in.close(); 
            } catch (IOException e) { 
                // TODO Auto-generated catch block 
                e.printStackTrace(); 
            } 
             
             
        } 
         
         
        return file; 
    } 
    /*delete file
     * @return 0 文件不存在 1删除成功
     * */ 
    public int deleteFile(String fileAllName){ 
        File file=new File(SDPATH+fileAllName); 
    if(isFileExist(file.getPath())){ 
        return 0; 
    } 
     
    file.delete(); 
    return 1;