Android Open Source - filemanager Detail Dialog Fragment

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License

The source code is released under:

MIT License

Java Source Code

package com.binkery.app.filemanager.fragments;
/* w  w  w .  ja v a2  s.  co m*/
import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.binkery.app.filemanager.R;
import com.binkery.app.filemanager.utils.Logs;
import com.binkery.app.filemanager.utils.StringUtils;

public class DetailDialogFragment extends BaseDialogFragment {

    private static final String TAG = DetailDialogFragment.class
            .getSimpleName();
  private static final int TYPE_FILE = 1;
  private static final int TYPE_FOLDER = 2;
  private static final int TYPE_SIZE = 3;

  private FileStaticAsyncTask mTask = null;

  private List<Item> mData = new ArrayList<Item>();
  
  public static DetailDialogFragment newInstance(String[] paths){
      DetailDialogFragment fragment = new DetailDialogFragment();
      Bundle b = new Bundle();
      b.putStringArray("paths", paths);
      return fragment;
  }
  
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
    }

  private BaseAdapter mAdapter = new BaseAdapter() {

    @Override
    public View getView(int position, View view, ViewGroup parent) {
      if (view == null) {
        view = View.inflate(getActivity(),
            R.layout.view_detail_list_item, null);
      }
      TextView title = (TextView) view.findViewById(R.id.title);
      title.setText(getItem(position).key);
      TextView value = (TextView) view.findViewById(R.id.value);
      value.setText(getItem(position).value);
      return view;
    }

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

    @Override
    public Item getItem(int position) {
      return mData != null ? mData.get(position) : null;
    }

    @Override
    public int getCount() {
      return mData != null ? mData.size() : 0;
    }
  };

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    Logs.i(TAG, "onCreateDialog");
    Dialog dialog = new AlertDialog.Builder(getActivity())
        .setAdapter(mAdapter, null)
        .setTitle(R.string.detail)
        .setPositiveButton(R.string.ok,
            new DialogInterface.OnClickListener() {

              @Override
              public void onClick(DialogInterface dialog,
                  int which) {
                if (mTask != null) {
                  mTask.cancel(true);
                }
              }
            }).create();
    return dialog;
  }

  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    Logs.i(TAG, "onActivityCreated");
    super.onActivityCreated(savedInstanceState);

    mData.add(new Item("Count",mPaths.length + ""));
//    mData.add(new Item(R.string.detail_key_name, mFile.getName()));

//    String permission = "";
//    permission += mFile.canRead() ? "R" : "";
//    permission += mFile.canWrite() ? "W" : "";
//    permission += mFile.canExecute() ? "X" : "";
    
//    mData.add(new Item(R.string.detail_key_permission, permission));

//    mData.add(new Item(R.string.detail_key_modified, formatDate(mFile.lastModified())
//        .toString()));

//    if (mFile.isFile()) {
//      mData.add(new Item(R.string.detail_key_size, StringUtils.formatFileSize(mFile
//          .length())));
//    } else {
//      mData.add(new Item(R.string.detail_key_size, "Loading...", TYPE_SIZE));
//      mData.add(new Item(R.string.detail_key_file_count, "Loading...", TYPE_FILE));
//      mData.add(new Item(R.string.detail_key_folder_count, "Loading...", TYPE_FOLDER));
//    }

//    mData.add(new Item(R.string.detail_key_location, mFile.getAbsolutePath()));

//    if (mFile.isDirectory()) {
//      mTask = new FileStaticAsyncTask();
//      mTask.execute(mFile);
//    }
    mAdapter.notifyDataSetChanged();
  }
  
  public static CharSequence formatDate(long time) {
    return DateFormat.format("yyyy-MM-dd hh:mm:ss", time);
  }

  private class Item {
    public int type = 0;
    public String key = "";
    public String value = "";

    public Item(String k, String v) {
      key = k;
      value = v;
    }

//    public Item(int k, String v, int t) {
//      this(k, v);
//      type = t;
//    }
  }
  
  private class FileStaticAsyncTask extends AsyncTask<File, String, String> {

    private long mTotalSize = 0;
    private int mFileCount = 0;
    private int mFolderCount = 0;

    @Override
    protected String doInBackground(File... params) {
      if (params[0].isFile()) {
        mTotalSize = params[0].length();
        return null;
      }
      calculateFileCount(params[0]);
      return null;
    }

    @Override
    protected void onPreExecute() {
      super.onPreExecute();
    }

    @Override
    protected void onPostExecute(String result) {
      super.onPostExecute(result);
      Logs.i(TAG, "onPostExecute");
      for(int i = 0 , len = mData.size();i<len;i++){
        Item item = mData.get(i);
        switch(item.type){
        case TYPE_SIZE:
          item.value = StringUtils.formatFileSize(mTotalSize);
          break;
        case TYPE_FOLDER:
          item.value = String.valueOf(mFolderCount);
          break;
        case TYPE_FILE:
          item.value = String.valueOf(mFileCount);
          break;
        }
      }
      mAdapter.notifyDataSetChanged();
    }

    private void calculateFileCount(File file) {
      Logs.i(TAG, "count " + file.getAbsolutePath());
      if (isCancelled()) {
        return;
      }
      if (!file.isDirectory()) {
        mFileCount++;
        mTotalSize += file.length();
        return;
      }
      if (file.list() == null) {
        return;
      }
      for (String fileName : file.list()) {
        File f = new File(file.getAbsolutePath() + File.separator
            + fileName);
        mFolderCount++;
        calculateFileCount(f);
      }
    }

  }

}

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