bug记录

package com.supermario.filemanager;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import com.supermario.filemanager.MainActivity.FileAdapter.ViewHolder;

import android.app.AlertDialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.app.AlertDialog.Builder;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.content.DialogInterface.OnClickListener;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;

public class MainActivity extends ListActivity {
    // 声明成员变量：
    //存放显示的文件列表的名称
    private List<String> mFileNames = null;
    //存放显示的文件列表的相对应的路径
    private List<String> mFilePaths = null;
    //起始目录“/” 
    private String mRootPath = java.io.File.separator;
    // SD卡根目录
    private String mSDCard = Environment.getExternalStorageDirectory().toString();
    private String mOldFilePath = "";
    private String mNewFilePath = "";
    private String keyWords;
    //用于显示当前路径
    private TextView mPathTextView;
    //用于放置工具栏
    private GridView mToolbarGridView;
    private int[] girdview_menu_image = {R.drawable.menu_phone,R.drawable.menu_sdcard,R.drawable.menu_search,
                                                        R.drawable.menu_create,R.drawable.menu_palse,R.drawable.menu_exit};
    private String[] gridview_menu_title = {"手机","SD卡","搜索","创建","粘贴","退出"};
    // 代表手机或SD卡，1代表手机，2代表SD卡
    private static int menuPosition = 1;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
      //一开始程序的时候加载手机目录下的文件列表
        initFileListInfo(mRootPath);
        //初始化菜单视图
       initGridViewMenu();
        //初始化菜单监听器
        initMenuListener();
        //为列表项绑定长按监听器
//        getListView().setOnItemLongClickListener(this);
        mPathTextView = (TextView)findViewById(R.id.mPath);
        
         
    }
    
    public static String mCurrentFilePath="";
    private void initFileListInfo(String filePath) {
        mCurrentFilePath = filePath;
        //显示当前的路径
        mPathTextView.setText(filePath);
        mFileNames = new ArrayList<String>();
        mFilePaths = new ArrayList<String>();
        File mFile = new File(filePath);
        //遍历出该文件夹路径下的所有文件/文件夹
        File[] mFiles = mFile.listFiles();
        //只要当前路径不是手机根目录或者是sd卡根目录则显示“返回根目录”和“返回上一级”
        if(menuPosition == 1&&!mCurrentFilePath.equals(mRootPath)){
            initAddBackUp(filePath,mRootPath);
        }else if(menuPosition == 2&&!mCurrentFilePath.equals(mSDCard)){
            initAddBackUp(filePath,mSDCard);
        }
        
        /*将所有文件信息添加到集合中*/
        for(File mCurrentFile:mFiles){
            mFileNames.add(mCurrentFile.getName());
            mFilePaths.add(mCurrentFile.getPath());
        }
        
        /*适配数据*/
        setListAdapter(new FileAdapter(MainActivity.this,mFileNames,mFilePaths));
    }
    
    private boolean isAddBackUp = false;
    private void initAddBackUp(String filePath,String phone_sdcard){
        if(!filePath.equals(phone_sdcard)){
            /*列表项的第一项设置为返回根目录*/
            mFileNames.add("BacktoRoot");
            mFilePaths.add(phone_sdcard);
            
            /*列表项的第二项设置为返回上一级*/
            mFileNames.add("BacktoUp");
            //回到当前目录的父目录即回到上级
            mFilePaths.add(new File(filePath).getParent());
            //将添加返回按键标识位置为true
            isAddBackUp = true;
        }
        
    }
    
    /**为GridView配饰菜单资源*/
    private void initGridViewMenu(){
         mToolbarGridView = (GridView)findViewById(R.id.file_gridview_toolbar);
         //设置选中时候的背景图片
         mToolbarGridView.setSelector(R.drawable.menu_item_selected);
         //设置背景图片
         mToolbarGridView.setBackgroundResource(R.drawable.menu_background);
         //设置列数
         mToolbarGridView.setNumColumns(6);
         //设置剧中对齐
         mToolbarGridView.setGravity(Gravity.CENTER);
         //设置水平，垂直间距为10
         mToolbarGridView.setVerticalSpacing(10);
         mToolbarGridView.setHorizontalSpacing(10);
         //设置适配器
         mToolbarGridView.setAdapter(getMenuAdapter(gridview_menu_title,girdview_menu_image));
    }
    
    /**菜单项的监听*/
    protected void initMenuListener(){
        mToolbarGridView.setOnItemClickListener(new OnItemClickListener(){

            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
                switch(arg2)
                {
                //回到根目录
                case 0:
                    menuPosition = 1;
                     initFileListInfo(mRootPath);
                    break;
                //回到SD卡根目录
                case 1:
                    menuPosition = 2;
                    initFileListInfo(mSDCard);
                    break;
                //显示搜索对话框
//                case 2:
//                    searchDilalog();
//                    break;
//                //创建文件夹
//                case 3:
//                    createFolder();
//                    break;
//                //粘贴文件
//                case 4:
//                    palseFile();
//                    break;
//                //退出
                case 5:
                    MainActivity.this.finish();
                    break;
                }
            }          
        });
    }
    /**菜单适配器*/
    private SimpleAdapter getMenuAdapter(String[] menuNameArray,
            int[] imageResourceArray) {
        //数组列表用于存放映射表
        ArrayList<HashMap<String, Object>> mData = new ArrayList<HashMap<String, Object>>();
        for (int i = 0; i < menuNameArray.length; i++) {
            HashMap<String, Object> mMap = new HashMap<String, Object>();
            //将“image”映射成图片资源
            mMap.put("image", imageResourceArray[i]);
            //将“title”映射成标题
            mMap.put("title", menuNameArray[i]);        
            mData.add(mMap);
        }
        //新建简单适配器，设置适配器的布局文件，映射关系
        SimpleAdapter mAdapter = new SimpleAdapter(this, mData,R.layout.item_menu, new String[] { "image", "title" },new int[] { R.id.item_image, R.id.item_text });
        return mAdapter;
    }
    
    class FileAdapter extends BaseAdapter{
        //返回键，各种格式的文件的图标
        private Bitmap mBackRoot;
        private Bitmap mBackUp;
        private Bitmap mImage;
        private Bitmap mAudio;
        private Bitmap mRar;
        private Bitmap mVideo;
        private Bitmap mFolder;
        private Bitmap mApk;
        private Bitmap mOthers;
        private Bitmap mTxt;
        private Bitmap mWeb;
        
        private Context mContext;
        //文件名列表
        private List<String> mFileNameList;
        //文件对应的路径列表
        private List<String> mFilePathList;
        
        public FileAdapter(Context context,List<String> fileName,List<String> filePath){
            mContext = context;
            mFileNameList = fileName;
            mFilePathList = filePath;
            //初始化图片资源
            //返回到根目录
            mBackRoot = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.back_to_root);
            //返回到上一级目录
            mBackUp = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.back_to_up);
            //图片文件对应的icon
            mImage = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.image);
            //音频文件对应的icon
            mAudio = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.audio);
            //视频文件对应的icon
            mVideo = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.video);
            //可执行文件对应的icon
            mApk = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.apk);
            //文本文档对应的icon
            mTxt = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.txt);
            //其他类型文件对应的icon
            mOthers = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.others);
            //文件夹对应的icon
            mFolder = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.folder);
            //zip文件对应的icon
            mRar = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.zip_icon);
            //网页文件对应的icon
            mWeb = BitmapFactory.decodeResource(mContext.getResources(),R.drawable.web_browser);
        }
        //获得文件的总数
        public int getCount() {
            return mFilePathList.size();
        }
        //获得当前位置对应的文件名
        public Object getItem(int position) {
            return mFileNameList.get(position);
        }
        //获得当前的位置
        public long getItemId(int position) {
            return position;
        }
        //获得视图
        public View getView(int position, View convertView, ViewGroup viewgroup) {
            ViewHolder viewHolder = null;
            if (convertView == null) {
                viewHolder = new ViewHolder();
                LayoutInflater mLI = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                //初始化列表元素界面
                convertView = mLI.inflate(R.layout.list_child, null);
                //获取列表布局界面元素
                viewHolder.mIV = (ImageView)convertView.findViewById(R.id.image_list_childs);
                viewHolder.mTV = (TextView)convertView.findViewById(R.id.text_list_childs);
                //将每一行的元素集合设置成标签
                convertView.setTag(viewHolder);
            } else {
                //获取视图标签
                viewHolder = (ViewHolder) convertView.getTag();
            }
            File mFile = new File(mFilePathList.get(position).toString());
            //如果
            if(mFileNameList.get(position).toString().equals("BacktoRoot")){
                //添加返回根目录的按钮
                viewHolder.mIV.setImageBitmap(mBackRoot);
                viewHolder.mTV.setText("返回根目录");
            }else if(mFileNameList.get(position).toString().equals("BacktoUp")){
                //添加返回上一级菜单的按钮
                viewHolder.mIV.setImageBitmap(mBackUp);
                viewHolder.mTV.setText("返回上一级");
            }else if(mFileNameList.get(position).toString().equals("BacktoSearchBefore")){
                //添加返回搜索之前目录的按钮
                viewHolder.mIV.setImageBitmap(mBackRoot);
                viewHolder.mTV.setText("返回搜索之前目录");
            }else{
                String fileName = mFile.getName();
                viewHolder.mTV.setText(fileName);
                if(mFile.isDirectory()){
                    viewHolder.mIV.setImageBitmap(mFolder);
                }else{
                    String fileEnds = fileName.substring(fileName.lastIndexOf(".")+1,fileName.length()).toLowerCase();//取出文件后缀名并转成小写
                    if(fileEnds.equals("m4a")||fileEnds.equals("mp3")||fileEnds.equals("mid")||fileEnds.equals("xmf")||fileEnds.equals("ogg")||fileEnds.equals("wav")){
                        viewHolder.mIV.setImageBitmap(mVideo);
                    }else if(fileEnds.equals("3gp")||fileEnds.equals("mp4")){
                        viewHolder.mIV.setImageBitmap(mAudio);
                    }else if(fileEnds.equals("jpg")||fileEnds.equals("gif")||fileEnds.equals("png")||fileEnds.equals("jpeg")||fileEnds.equals("bmp")){
                        viewHolder.mIV.setImageBitmap(mImage);
                    }else if(fileEnds.equals("apk")){
                        viewHolder.mIV.setImageBitmap(mApk);
                    }else if(fileEnds.equals("txt")){
                        viewHolder.mIV.setImageBitmap(mTxt);
                    }else if(fileEnds.equals("zip")||fileEnds.equals("rar")){
                        viewHolder.mIV.setImageBitmap(mRar);
                    }else if(fileEnds.equals("html")||fileEnds.equals("htm")||fileEnds.equals("mht")){
                        viewHolder.mIV.setImageBitmap(mWeb);
                    }else {
                        viewHolder.mIV.setImageBitmap(mOthers);
                    }
                }                
            }
            return convertView;
        }
        //用于存储列表每一行元素的图片和文本
        class ViewHolder {
            ImageView mIV;
            TextView mTV;
        }
    }
}
    
    

文件管理器，点击SD卡，再点击退出。重新打开会闪退，必须再点击一次才能打开。