Android Open Source - VankeTV File Select List View

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.baidu.bvideoviewsample1.filesselect;
//from ww  w.  j a v  a2  s .  c om
import android.content.Context;
import android.os.Bundle;
import android.os.Environment;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.baidu.bvideoviewsample1.R;


import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;

public class FileSelectListView extends ListView implements android.widget.AdapterView.OnItemClickListener {
    private Context mContext;
    private String[] mSuffixs;
    private FileSelectedCallBackBundle mFileSelectedCallBack;
    private FileFilter mFileFilter;
    private FileSelectAdapter mAdapter;
    ArrayList<FileItem> mFileList;

    public FileSelectListView(Context context) {
        super(context);
    }
    
    public FileSelectListView(Context context, FileFilter fileFilter, FileSelectedCallBackBundle callback) {
        super(context);
        mContext = context;
        mFileFilter = fileFilter;
        mFileSelectedCallBack = callback;
        mAdapter = new FileSelectAdapter(mContext, null);
       // initFileFilter(mSuffixs);
        refreshList(Environment.getExternalStorageDirectory());
        this.setOnItemClickListener(this);
        this.setAdapter(mAdapter);

    }

    private void refreshList(File file) {
        mFileList = getFirstList(file, mFileFilter);
        mAdapter.setList(mFileList);
    }

    private void initFileFilter(FileFilter fileFilter) {
        mFileFilter = fileFilter;
    }

    private ArrayList<FileItem> getFirstList(File currentDir, FileFilter fileFilter) {
        File[] list = currentDir.listFiles(fileFilter);
        ArrayList<FileItem> fileList = new ArrayList<FileItem>();
        String parentPath = currentDir.getParent();
        if (TextUtils.isEmpty(parentPath)) {
            parentPath = currentDir.getAbsolutePath();
        }
        FileItem parent = new FileItem("????", parentPath);
        parent.setFileType(FileItem.DIR_TYPE);
        fileList.add(parent);
        if (list != null && list.length != 0) {
            for (File file : list) {
                FileItem item = new FileItem(file.getName(), file.getAbsolutePath());
                if (file.isDirectory()) {
                    item.setFileType(FileItem.DIR_TYPE);
                } else {
                    item.setFileType(FileItem.FILE_TYPE);
                }
                fileList.add(item);
            }
        }
        return fileList;
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        FileItem item = mFileList.get(position);
        if (item.getFileType() == FileItem.DIR_TYPE) {
            refreshList(new File(item.getFileUri()));
        } else {
            Bundle bundle = new Bundle();
            bundle.putString("name", item.getFileName());
            bundle.putString("uri", item.getFileUri());
            mFileSelectedCallBack.onFileSelected(bundle);
        }
    }
    
    private class FileSelectAdapter extends BaseAdapter {
        private final int[] mFileIcon = {R.drawable.icon_list_folder, R.drawable.icon_list_unknown};
        private ArrayList<FileItem> mFileList;
        private Context mContext;
        private LayoutInflater mInflater;

        public FileSelectAdapter(Context context, ArrayList<FileItem> fileList) {
            mContext = context;
            mFileList = fileList;
            mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }
        
        public void setList(ArrayList<FileItem> fileList) {
            mFileList = fileList;
            this.notifyDataSetChanged();
        }

        @Override
        public int getCount() {
            if (mFileList == null) {
                return 0;
            }
            return mFileList.size();
        }

        @Override
        public Object getItem(int position) {
            if (mFileList == null) {
                return null;
            }
            return mFileList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView == null) {
                convertView = mInflater.inflate(R.layout.file_list_item, null);
                holder = new ViewHolder();
                holder.icon = (ImageView) convertView.findViewById(R.id.file_icon);
                holder.fileName = (TextView) convertView.findViewById(R.id.file_name);
                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }
            FileItem item = mFileList.get(position);
            holder.icon.setImageResource(mFileIcon[item.getFileType()]);
            holder.fileName.setText(item.getFileName());
            return convertView;
        }
    }

    static class ViewHolder {
        ImageView icon;
        TextView fileName;
    }
}

Java Source Code List

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