Android调用MediaScanner开展扫描

代码如下;

import android.content.Context;import android.media.MediaScannerConnection;import android.net.Uri;public class MediaScanner {	private MediaScannerConnection mediaScanConn = null;	private MusicSannerClient client = null;	private String filePath = null;		private String fileType = null;		private String[] filePaths = null;    /**     * 然后调用MediaScanner.scanFile("/sdcard/2.mp3");     * */	public MediaScanner(Context context) {        //创建MusicSannerClient		if (client == null) {			client = new MusicSannerClient();		}		if (mediaScanConn == null) {			mediaScanConn = new MediaScannerConnection(context, client);		}	}	class MusicSannerClient implements			MediaScannerConnection.MediaScannerConnectionClient {		public void onMediaScannerConnected() {						if(filePath != null){								mediaScanConn.scanFile(filePath, fileType);			}						if(filePaths != null){								for(String file: filePaths){										mediaScanConn.scanFile(file, fileType);				}			}						filePath = null;						fileType = null;						filePaths = null;		}		public void onScanCompleted(String path, Uri uri) {			// TODO Auto-generated method stub			mediaScanConn.disconnect();		}	}	    /**     * 扫描文件标签信息     * @param filePath 文件路径 eg:/sdcard/MediaPlayer/dahai.mp3     * @param fileType 文件类型 eg: audio/mp3  media/*  application/ogg     * */	public void scanFile(String filepath,String fileType) {		this.filePath = filepath;				this.fileType = fileType;        //连接之后调用MusicSannerClient的onMediaScannerConnected()方法		mediaScanConn.connect();	}    /**     * @param filePaths 文件路径     * @param fileType 文件类型     * */	public void scanFile(String[] filePaths,String fileType){				this.filePaths = filePaths;				this.fileType = fileType;				mediaScanConn.connect();			}		public String getFilePath() {		return filePath;	}	public void setFilePath(String filePath) {		this.filePath = filePath;	}	public String getFileType() {				return fileType;	}	public void setFileType(String fileType) {				this.fileType = fileType;	}	}

?