团队博客9

Android文件获取

使用递归便利本地所有文件（txt文件、word文件、ppt文件和zip压缩文件 ）

@SuppressLint("NewApi")
public class FileInforService {

	public File path1;
    public ArrayList<FileInfor> listfile;
    public Context context;
    public ArrayList<FileInfor> lpath;
    public ArrayList<File>  afile;
    public FileInforService(Context context)
	{
		this.context=context;
	}

    
	/*获取所有文件信息*/
	public ArrayList<File> getAllFileList()
	{	
		listfile=new ArrayList<FileInfor>();
		afile=new ArrayList<File>();
		File file=Environment.getExternalStorageDirectory();
		File[] files=file.listFiles();
		runFile(files);	
	    return afile;
	}
	public void runFile(File[] file)
	{
		
  	     if (file != null) {  
  	          for (int i=0;i<file.length;i++) {  
  	        	  File file2=file[i];
  	        	  System.out.println(file2.toString());
  	              if (file2.listFiles() == null) {  
  	            	  System.out.println(file2.isFile());
	            	  if(file2.isFile())
	            	  {
	            		  afile.add(file2);
		              }
	              }
  	              else
  	              { 
  	            	 final File[] newFileList=file2.listFiles();
  	            	 
  	            	 Thread thread=new Thread(){

						@Override
						public void run() {
							// TODO Auto-generated method stub
							 runFile(newFileList);
						}  	            		 
  	            	 };
  	      		     thread.start(); 
  	              }
  	          }
  	     }
	}
}

　　　　　　　　　　　　　　　　　　　　　　

　　　　　　　　　　　　　　　　　　　　　　　　　　

private ArrayList<FileInfor> getFileList()
	{

		ArrayList<File> files=new ArrayList<File>();
		service=new FileInforService(inbox);
		
		files=service.getAllFileList();
		
		int fsize=files.size();
		if(fsize==0)
		{
			return null;
		}
		for(int i=0;i<fsize;i++)
		{
			File file=files.get(i);
			String name=file.getName();
			int a=0;
			if(name.endsWith("xls")||name.endsWith("xlsx")||name.endsWith("xlsm")||name.endsWith("xltm")||name.endsWith("xlsb")||name.endsWith("xlam"))
			{
/*				Bitmap icon=BitmapFactory.decodeResource(getResources(), R.drawable.excel);	*/
				a=1;
			}
			if(name.endsWith("ppt")||name.endsWith("pptx")||name.endsWith("pptm")||name.endsWith("ppsx")||name.endsWith("potx")||name.endsWith("potm")||name.endsWith("ppam"))
			{
				a=2;
			}
			if(name.endsWith("doc")||name.endsWith("docx")||name.endsWith("docm")||name.endsWith("dotx")||name.endsWith("dotm"))
			{
				a=3;
			}
			if(name.endsWith("umd")||name.endsWith("pdf")||name.endsWith("txt")||name.endsWith("edk")||name.endsWith("chm"))
			{
				a=4;
			}
			if(name.endsWith("zip")||name.endsWith("rar")||name.endsWith("iso")||name.endsWith("7z"))
			{
				a=5;
			}
			if(a==0)
			{
				continue;
			}
		    Map<String,Object> map=new HashMap<String,Object>();
		    String str = "文件名称:" + file.getName() + " 路径:"+ file.getPath();  
            System.out.println(str);  
            FileInfor fileInfor=new FileInfor();           
            String path=file.getAbsolutePath();
            int size=(int)file.length();         	            	  
            String fileSize=parseApkSize(size);
            long modTime=file.lastModified();
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String date=dateFormat.format(new Date(modTime));
			map.put("name", name);
			Toast.makeText(inbox, fileInfor.getName(),Toast.LENGTH_SHORT).show();
			map.put("path", path);
			map.put("date",date);
		    map.put("size", fileSize);
		    
		    if(a==1)
		    {
		    	map.put("icon", R.drawable.excel);
		    	listExcel.add(map);
		    }
			if(a==2)
			{
				map.put("icon", R.drawable.ppt);
				listPpt.add(map);
			}
			if(a==3)
		    {
				map.put("icon", R.drawable.word);
		    	listWord.add(map);
		    }
			if(a==4)
			{
				map.put("icon", R.drawable.pdf);
				listPdf.add(map);
			}
			if(a==5)
		    {
				map.put("icon", R.drawable.zip);
		    	listZip.add(map);
		    }
			
		}
		return null;
	}
	private String parseApkSize(int size) {
		BigDecimal bd;
		BigDecimal setScale;
		String str=null;
		if(size/1024>0)
		{
			bd=new BigDecimal((double)size/(1024));
			setScale = bd.setScale(2, BigDecimal.ROUND_DOWN);
			str=setScale.toString()+"KB";  
		}
		else
		{
			bd = new BigDecimal((double)size/(1024*1024));
			setScale = bd.setScale(2, BigDecimal.ROUND_DOWN);
			str=setScale.toString()+"M";  
		}
	    
	          
	    return str;
	}