package com.yarin.android.FileManager;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.Collections;import java.util.List;import android.app.AlertDialog;import android.app.ListActivity;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.content.Intent;import android.content.DialogInterface.OnClickListener;import android.graphics.drawable.Drawable;import android.net.Uri;import android.os.Bundle;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.EditText;import android.widget.ListView;import android.widget.TextView;public class FileManager extends ListActivity{	private List<IconifiedText>	directoryEntries = new ArrayList<IconifiedText>();	private File				currentDirectory = new File("/");	private File 				myTmpFile 		 = null;	private int 				myTmpOpt		 = -1;	/** Called when the activity is first created. */	@Override	public void onCreate(Bundle icicle)	{		super.onCreate(icicle);		browseToRoot();		this.setSelection(0);	}	//瀏覽文件系統(tǒng)的根目錄	private void browseToRoot() 	{		browseTo(new File("/"));    }	//返回上一級(jí)目錄	private void upOneLevel()	{		if(this.currentDirectory.getParent() != null)			this.browseTo(this.currentDirectory.getParentFile());	}	//瀏覽指定的目錄,如果是文件則進(jìn)行打開(kāi)操作	private void browseTo(final File file)	{		this.setTitle(file.getAbsolutePath());		if (file.isDirectory())		{			this.currentDirectory = file;			fill(file.listFiles());		}		else		{			fileOptMenu(file);		}	}	//打開(kāi)指定文件	protected void openFile(File aFile)	{		Intent intent = new Intent();		intent.setAction(android.content.Intent.ACTION_VIEW);		File file = new File(aFile.getAbsolutePath());		// 取得文件名		String fileName = file.getName();		// 根據(jù)不同的文件類(lèi)型來(lái)打開(kāi)文件		if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingImage)))		{			intent.setDataAndType(Uri.fromFile(file), "image/*");		}		else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingAudio)))		{			intent.setDataAndType(Uri.fromFile(file), "audio/*");		}		else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingVideo)))		{			intent.setDataAndType(Uri.fromFile(file), "video/*");		}		startActivity(intent);	}	//這里可以理解為設(shè)置ListActivity的源	private void fill(File[] files)	{		//清空列表		this.directoryEntries.clear();		//添加一個(gè)當(dāng)前目錄的選項(xiàng)		this.directoryEntries.add(new IconifiedText(getString(R.string.current_dir), getResources().getDrawable(R.drawable.folder)));		//如果不是根目錄則添加上一級(jí)目錄項(xiàng)		if (this.currentDirectory.getParent() != null)			this.directoryEntries.add(new IconifiedText(getString(R.string.up_one_level), getResources().getDrawable(R.drawable.uponelevel)));		Drawable currentIcon = null;		for (File currentFile : files)		{			//判斷是一個(gè)文件夾還是一個(gè)文件			if (currentFile.isDirectory())			{				currentIcon = getResources().getDrawable(R.drawable.folder);			}			else			{				//取得文件名				String fileName = currentFile.getName();				//根據(jù)文件名來(lái)判斷文件類(lèi)型，設(shè)置不同的圖標(biāo)				if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingImage)))				{					currentIcon = getResources().getDrawable(R.drawable.image);				}				else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingWebText)))				{					currentIcon = getResources().getDrawable(R.drawable.webtext);				}				else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingPackage)))				{					currentIcon = getResources().getDrawable(R.drawable.packed);				}				else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingAudio)))				{					currentIcon = getResources().getDrawable(R.drawable.audio);				}				else if (checkEndsWithInStringArray(fileName, getResources().getStringArray(R.array.fileEndingVideo)))				{					currentIcon = getResources().getDrawable(R.drawable.video);				}				else				{					currentIcon = getResources().getDrawable(R.drawable.text);				}			}			//確保只顯示文件名、不顯示路徑如：/sdcard/111.txt就只是顯示111.txt			int currentPathStringLenght = this.currentDirectory.getAbsolutePath().length();			this.directoryEntries.add(new IconifiedText(currentFile.getAbsolutePath().substring(currentPathStringLenght), currentIcon));		}		Collections.sort(this.directoryEntries);		IconifiedTextListAdapter itla = new IconifiedTextListAdapter(this);		//將表設(shè)置到ListAdapter中		itla.setListItems(this.directoryEntries);		//為L(zhǎng)istActivity添加一個(gè)ListAdapter		this.setListAdapter(itla);	}		protected void onListItemClick(ListView l, View v, int position, long id)	{		super.onListItemClick(l, v, position, id);		// 取得選中的一項(xiàng)的文件名		String selectedFileString = this.directoryEntries.get(position).getText();				if (selectedFileString.equals(getString(R.string.current_dir)))		{			//如果選中的是刷新			this.browseTo(this.currentDirectory);		}		else if (selectedFileString.equals(getString(R.string.up_one_level)))		{			//返回上一級(jí)目錄			this.upOneLevel();		}		else		{								File clickedFile = null;			clickedFile = new File(this.currentDirectory.getAbsolutePath()+ this.directoryEntries.get(position).getText());			if(clickedFile != null)				this.browseTo(clickedFile);		}	}	//通過(guò)文件名判斷是什么類(lèi)型的文件	private boolean checkEndsWithInStringArray(String checkItsEnd, 					String[] fileEndings)	{		for(String aEnd : fileEndings)		{			if(checkItsEnd.endsWith(aEnd))				return true;		}		return false;	}		public boolean onCreateOptionsMenu(Menu menu)	{		super.onCreateOptionsMenu(menu);		menu.add(0, 0, 0, "新建目錄").setIcon(R.drawable.addfolderr);		menu.add(0, 1, 0, "刪除目錄").setIcon(R.drawable.delete);		menu.add(0, 2, 0, "粘貼文件").setIcon(R.drawable.paste);		menu.add(0, 3, 0, "根目錄").setIcon(R.drawable.goroot);		menu.add(0, 4, 0, "上一級(jí)").setIcon(R.drawable.uponelevel);		return true;	}	public boolean onOptionsItemSelected(MenuItem item)	{		super.onOptionsItemSelected(item);		switch (item.getItemId())		{			case 0:				Mynew();				break;			case 1:				//注意：刪除目錄，謹(jǐn)慎操作，該例子提供了				//deleteFile（刪除文件）和deleteFolder（刪除整個(gè)目錄）				MyDelete();				break;			case 2:				MyPaste();				break;			case 3:				this.browseToRoot();				break;			case 4:				this.upOneLevel();				break;		}		return false;	}	@Override	public boolean onPrepareOptionsMenu(Menu menu)	{		return super.onPrepareOptionsMenu(menu);	}	//粘貼操作	public void MyPaste()	{		if ( myTmpFile == null )		{			Builder builder = new Builder(FileManager.this);			builder.setTitle("提示");			builder.setMessage("沒(méi)有復(fù)制或剪切操作");			builder.setPositiveButton(android.R.string.ok,					new AlertDialog.OnClickListener() {						public void onClick(DialogInterface dialog, int which) {							dialog.cancel();							}					});			builder.setCancelable(false);			builder.create();			builder.show();		}		else		{			if ( myTmpOpt == 0 )//復(fù)制操作			{				if(new File(GetCurDirectory()+"/"+myTmpFile.getName()).exists())				{					Builder builder = new Builder(FileManager.this);					builder.setTitle("粘貼提示");					builder.setMessage("該目錄有相同的文件，是否需要覆蓋？");					builder.setPositiveButton(android.R.string.ok,							new AlertDialog.OnClickListener() {								public void onClick(DialogInterface dialog, int which) {									copyFile(myTmpFile,new File(GetCurDirectory()+"/"+myTmpFile.getName()));									browseTo(new File(GetCurDirectory()));								}							});					builder.setNegativeButton(android.R.string.cancel,							new DialogInterface.OnClickListener() {								public void onClick(DialogInterface dialog, int which) {									dialog.cancel();								}							});					builder.setCancelable(false);					builder.create();					builder.show();				}					else				{					copyFile(myTmpFile,new File(GetCurDirectory()+"/"+myTmpFile.getName()));					browseTo(new File(GetCurDirectory()));				}			}			else if(myTmpOpt == 1)//粘貼操作			{				if(new File(GetCurDirectory()+"/"+myTmpFile.getName()).exists())				{					Builder builder = new Builder(FileManager.this);					builder.setTitle("粘貼提示");					builder.setMessage("該目錄有相同的文件，是否需要覆蓋？");					builder.setPositiveButton(android.R.string.ok,							new AlertDialog.OnClickListener() {								public void onClick(DialogInterface dialog, int which) {									moveFile(myTmpFile.getAbsolutePath(),GetCurDirectory()+"/"+myTmpFile.getName());									browseTo(new File(GetCurDirectory()));								}							});					builder.setNegativeButton(android.R.string.cancel,							new DialogInterface.OnClickListener() {								public void onClick(DialogInterface dialog, int which) {									dialog.cancel();								}							});					builder.setCancelable(false);					builder.create();					builder.show();				}					else				{					moveFile(myTmpFile.getAbsolutePath(),GetCurDirectory()+"/"+myTmpFile.getName());					browseTo(new File(GetCurDirectory()));					}			}		}	}	//刪除整個(gè)文件夾	public void MyDelete()	{		//取得當(dāng)前目錄		File tmp=new File(this.currentDirectory.getAbsolutePath());		//跳到上一級(jí)目錄		this.upOneLevel();		//刪除取得的目錄		if ( deleteFolder(tmp) )		{			Builder builder = new Builder(FileManager.this);			builder.setTitle("提示");			builder.setMessage("刪除成功");			builder.setPositiveButton(android.R.string.ok,					new AlertDialog.OnClickListener() {						public void onClick(DialogInterface dialog, int which) {							dialog.cancel();							}					});			builder.setCancelable(false);			builder.create();			builder.show();		}		else 		{			Builder builder = new Builder(FileManager.this);			builder.setTitle("提示");			builder.setMessage("刪除失敗");			builder.setPositiveButton(android.R.string.ok,					new AlertDialog.OnClickListener() {						public void onClick(DialogInterface dialog, int which) {							dialog.cancel();						}					});			builder.setCancelable(false);			builder.create();			builder.show();		}		this.browseTo(this.currentDirectory);		}	//新建文件夾	public void Mynew()	{		final LayoutInflater factory = LayoutInflater.from(FileManager.this);		final View dialogview = factory.inflate(R.layout.dialog, null);		//設(shè)置TextView		((TextView) dialogview.findViewById(R.id.TextView_PROM)).setText("請(qǐng)輸入新建文件夾的名稱(chēng)！");		//設(shè)置EditText		((EditText) dialogview.findViewById(R.id.EditText_PROM)).setText("文件夾名稱(chēng)...");				Builder builder = new Builder(FileManager.this);		builder.setTitle("新建文件夾");