Android Open Source - Tree-Task Main View Fragment

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License

The source code is released under:
Apache License
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Java Source Code

package com.ghsoft.treetaskapp;
//from  ww w . ja  va2 s. c o m
import java.util.ArrayList;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

import com.ghsoft.treetask.R;
import com.ghsoft.treetask.Task;
import com.ghsoft.treetask.TaskDummy;
import com.ghsoft.treetask.TaskHead;
import com.ghsoft.treetask.TaskManager;
import com.ghsoft.treetask.TaskNode;
import com.mobeta.android.dslv.DragSortListView;

public class MainViewFragment extends Fragment {

  /**
   * The fragment argument representing the section number for this fragment.
   */
  public static final String ARG_SECTION_NUMBER = "section_number";
  private static final int TASKS = 1;
  // private static final int ARCHIVE = 2;
  private DragSortListView taskList;
  public TaskManager tm;
  private ArrayList<TaskHead> toDisplay;
  private MainListItem adapter;
  public int id;

  private DragSortListView.DragScrollProfile ssProfile = new DragSortListView.DragScrollProfile() {
    @Override
    public float getSpeed(float w, long t) {
      if (w > 0.8f) {
        // Traverse all views in a millisecond
        return ((float) adapter.getCount()) / 0.001f;
      } else {
        return 10.0f * w;
      }
    }
  };

  private DragSortListView.DropListener onDrop = new DragSortListView.DropListener() {
    @Override
    public void drop(int from, int to) {
      TaskHead th = adapter.getData().get(from);

      adapter.getData().remove(th);
      adapter.getData().add(to, th);
      adapter.notifyDataSetChanged();

      if (adapter.getType().equals("tasks")) {
        tm.getMetadata().buildTasksOrder(adapter.getData());
        TaskManager.saveMetaData();
      } else {
        tm.getMetadata().buildArchiveOrder(adapter.getData());
        TaskManager.saveMetaData();
      }

    }
  };

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView;

    tm = (TaskManager) getArguments().get("tm");

    toDisplay = new ArrayList<TaskHead>();
    if (getArguments().getInt(ARG_SECTION_NUMBER) == TASKS) {
      rootView = inflater.inflate(R.layout.main_view_fragment, container, false);
      toDisplay = tm.getTasks();
      taskList = (DragSortListView) rootView.findViewById(R.id.taskList);
      adapter = new MainListItem(getActivity().getApplicationContext(), toDisplay, "tasks");
    } else {
      rootView = inflater.inflate(R.layout.main_view_fragment_archive, container, false);
      toDisplay = tm.getArchive();
      taskList = (DragSortListView) rootView.findViewById(R.id.taskListArchive);
      adapter = new MainListItem(getActivity().getApplicationContext(), toDisplay, "archive");
    }

    taskList.setDropListener(onDrop);
    taskList.setDragScrollProfile(ssProfile);

    if (toDisplay.size() > 0) {

      taskList.setAdapter(adapter);
    }

    registerForContextMenu(taskList);

    taskList.setOnItemClickListener(new OnItemClickListener() {
      public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

        TaskNode t = toDisplay.get(position).getTask();

        ViewPager a = (ViewPager) arg1.getParent().getParent().getParent().getParent(); // lol

        Task child = t.getChild(0);

        Intent i = null;

        if (child instanceof TaskDummy) {
          i = new Intent(getActivity(), NewTreeView.class);
        } else {
          i = new Intent(getActivity(), TaskView.class);
        }

        i.putExtra("task", toDisplay.get(position).getTask());
        i.putExtra("page", a.getCurrentItem());
        getActivity().finish();
        startActivity(i);
        getActivity().overridePendingTransition(R.anim.zoom, R.anim.slide);

      }
    });

    return rootView;
  }

  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
    ViewPager a = (ViewPager) v.getParent().getParent().getParent();

    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater inflater = getActivity().getMenuInflater();

    if (a.getCurrentItem() == 0)
      inflater.inflate(R.menu.main_view_menu, menu);
    else
      inflater.inflate(R.menu.main_view_menu_archive, menu);

  }

  public boolean onContextItemSelected(MenuItem item) {
    final AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
    AlertDialog.Builder builder;
    AlertDialog alert;
    switch (item.getItemId()) {

    case R.id.deleteTask:

      builder = new AlertDialog.Builder(getActivity());
      builder.setMessage(R.string.sure_to_delete).setCancelable(false).setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {

          TaskManager.delete(tm.getTasks().get(info.position).taskID);

          DragSortListView list = (DragSortListView) getActivity().findViewById(R.id.taskList);
          MainListItem adapter = ((MainListItem) list.getInputAdapter());
          adapter.getData().remove(info.position);

          tm.getMetadata().buildTasksOrder(adapter.getData());
          TaskManager.saveMetaData();

          adapter.notifyDataSetChanged();

        }
      }).setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
          dialog.cancel();
        }
      });
      alert = builder.create();
      alert.show();

      return true;

    case R.id.deleteArchive:

      builder = new AlertDialog.Builder(getActivity());
      builder.setMessage(R.string.sure_to_delete).setCancelable(false).setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {

          TaskManager.delete(tm.getArchive().get(info.position).taskID);

          DragSortListView list = (DragSortListView) getActivity().findViewById(R.id.taskListArchive);
          MainListItem adapter = ((MainListItem) list.getInputAdapter());
          adapter.getData().remove(info.position);

          tm.getMetadata().buildArchiveOrder(adapter.getData());
          TaskManager.saveMetaData();

          adapter.notifyDataSetChanged();
        }
      }).setNegativeButton(R.string.no, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
          dialog.cancel();
        }
      });
      alert = builder.create();
      alert.show();

      return true;
    default:
      return super.onContextItemSelected(item);
    }
  }
}
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