Android Open Source - Android-SDK-Demo Address Book Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.baasbox.demo;
//w w w  . j  av  a2 s .  com
import java.util.ArrayList;
import java.util.List;

import com.baasbox.android.BaasClientException;
import com.baasbox.android.BaasDocument;
import com.baasbox.android.BaasException;
import com.baasbox.android.BaasResult;
import com.baasbox.android.BaasServerException;
import com.baasbox.demo.util.AlertUtils;

import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.AsyncTask.Status;
import android.os.Bundle;
import android.view.ActionMode;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.TextView;

public class AddressBookActivity extends ListActivity implements
    ActionMode.Callback {

  private static final int MENUITEM_REFRESH = 1;
  private static final int MENUITEM_ADD = 2;
  private static final int MENUITEM_DELETE = 3;

  private ListTask listTask;
  private AddTask addTask;
  private ArrayAdapter<BaasDocument> adapter;
  private MenuItem refreshMenuItem;
  private int selectedItem = -1;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.adapter = new Adapter(this);
    this.setListAdapter(adapter);

    this.getListView().setLongClickable(true);
    this.getListView().setChoiceMode(AbsListView.CHOICE_MODE_SINGLE);
    this.getListView().setOnItemLongClickListener(
        new OnItemLongClickListener() {
          @Override
          public boolean onItemLongClick(AdapterView<?> adapter,
              View view, int position, long id) {
            if (selectedItem != -1) {
              return false;
            }

            selectedItem = position;
            startActionMode(AddressBookActivity.this);
            view.setSelected(true);
            return true;
          }
        });
  }

  @Override
  protected void onResume() {
    super.onResume();
    refresh();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    refreshMenuItem = menu.add(Menu.NONE, MENUITEM_REFRESH, Menu.NONE,
        "Refresh");
    refreshMenuItem.setIcon(R.drawable.ic_menu_refresh);
    refreshMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
    if (listTask != null && listTask.getStatus() == Status.RUNNING)
      refreshMenuItem.setActionView(R.layout.view_menuitem_refresh);

    MenuItem add = menu.add(Menu.NONE, MENUITEM_ADD, Menu.NONE, "Add");
    add.setIcon(R.drawable.ic_menu_add);
    add.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);

    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
      onBackPressed();
      break;
    case MENUITEM_ADD:
      onClickAddPerson();
      break;
    case MENUITEM_REFRESH:
      refresh();
      break;
    default:
      return super.onOptionsItemSelected(item);
    }

    return false;
  }

  @Override
  public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
    switch (item.getItemId()) {
    case MENUITEM_DELETE:
      delete(selectedItem);
      mode.finish();
      break;
    default:
      return super.onContextItemSelected(item);
    }

    return true;
  }

  @Override
  public boolean onCreateActionMode(ActionMode mode, Menu menu) {
    BaasDocument person = adapter.getItem(selectedItem);
    mode.setTitle(person.getString("name"));

    MenuItem delete = menu.add(ContextMenu.NONE, MENUITEM_DELETE,
        ContextMenu.NONE, "Delete");
    delete.setIcon(R.drawable.ic_menu_delete);
    delete.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);

    return true;
  }

  @Override
  public void onDestroyActionMode(ActionMode mode) {
    selectedItem = -1;
  }

  @Override
  public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
    return false;
  }

  protected void delete(int position) {
    BaasDocument person = adapter.getItem(position);
    adapter.remove(person);
    new DeleteTask().execute(person);
  }

  private void refresh() {
    listTask = new ListTask();
    listTask.execute();
  }

  private void onClickAddPerson() {
    View layout = getLayoutInflater().inflate(R.layout.dialog_add, null);
    final EditText nameText = (EditText) layout.findViewById(R.id.name);
    final EditText phoneText = (EditText) layout.findViewById(R.id.phone);

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setView(layout);
    builder.setNegativeButton("Cancel", null);
    builder.setPositiveButton("Add", new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        String name = nameText.getText().toString().trim();
        String phone = phoneText.getText().toString().trim();

        if (name.length() > 0 && phone.length() > 0)
          addPerson(name, phone);
      }
    });

    builder.create().show();
  }

  protected void addPerson(String name, String phone) {
    addTask = new AddTask();
    addTask.execute(name, phone);
  }

  public void onPersonAdded(BaasResult<BaasDocument> result) {
    try {
      adapter.add(result.get());
      adapter.notifyDataSetChanged();
    } catch (BaasClientException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasServerException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasException e) {
      AlertUtils.showErrorAlert(this, e);
    }
  }

  protected void onListReceived(BaasResult<List<BaasDocument>> result) {
    try {
      List<BaasDocument> array = result.get();
      adapter.clear();

      for (int i = 0; i < array.size(); i++)
        adapter.add(array.get(i));

      adapter.notifyDataSetChanged();
    } catch (BaasClientException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasServerException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasException e) {
      AlertUtils.showErrorAlert(this, e);
    }
  }
  
  protected void onPersonDeleted(BaasResult<Void> result) {
    try {
      result.get();
    } catch (BaasClientException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasServerException e) {
      AlertUtils.showErrorAlert(this, e);
    } catch (BaasException e) {
      AlertUtils.showErrorAlert(this, e);
    }
  }

  public class ListTask extends AsyncTask<Void, Void, BaasResult<List<BaasDocument>>> {

    @Override
    protected void onPreExecute() {
      if (refreshMenuItem != null)
        refreshMenuItem.setActionView(R.layout.view_menuitem_refresh);
    }

    @Override
    protected BaasResult<List<BaasDocument>> doInBackground(Void... params) {
      return BaasDocument.fetchAllSync("address-book");
    }

    @Override
    protected void onPostExecute(BaasResult<List<BaasDocument>> result) {
      if (refreshMenuItem != null)
        refreshMenuItem.setActionView(null);
      onListReceived(result);
    }
  }

  public class AddTask extends AsyncTask<String, Void, BaasResult<BaasDocument>> {

    @Override
    protected BaasResult<BaasDocument> doInBackground(String... params) {
      BaasDocument person = new BaasDocument("address-book");

      person.putString("name", params[0]);
      person.putString("phone", params[1]);
      

      return person.saveSync();
    }

    @Override
    protected void onPostExecute(BaasResult<BaasDocument> result) {
      onPersonAdded(result);
    }
  }

  public class DeleteTask extends  AsyncTask<BaasDocument, Void, BaasResult<Void>> {
    
    @Override
    protected BaasResult<Void> doInBackground(BaasDocument... params) {
      return params[0].deleteSync();
    }
    
    @Override
    protected void onPostExecute(BaasResult<Void> result) {
      onPersonDeleted(result);
    }
  }

  public class Adapter extends ArrayAdapter<BaasDocument> {

    public Adapter(Context context) {
      super(context, android.R.layout.simple_list_item_2,  new ArrayList<BaasDocument>());
    }

    public View getView(int position, View convertView, ViewGroup parent) {
      View view = convertView;

      if (view == null) {
        LayoutInflater inflater = (LayoutInflater) getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(android.R.layout.simple_list_item_2,
            null);

        Tag tag = new Tag();
        tag.text1 = (TextView) view.findViewById(android.R.id.text1);
        tag.text2 = (TextView) view.findViewById(android.R.id.text2);
        view.setTag(tag);
      }

      Tag tag = (Tag) view.getTag();
      BaasDocument entry = getItem(position);
      tag.text1.setText(entry.getString("name"));
      //tag.text2.setText(entry.optString("phone"));

      return view;
    }

  }

  protected static class Tag {

    public TextView text1;
    public TextView text2;

  }

}

Java Source Code List

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