Android Open Source - bnote Searchable Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.rd.bnote;
//from w  ww. j  a  v  a2  s .  c o  m
import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnCreateContextMenuListener;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

public class SearchableActivity extends Activity {

  private DBManager mDbManager;
  private ListView mListView;
  private String query;
  protected static final int MENU_DELETE = Menu.FIRST;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.note_searchable);
    findViews();
    mListView.setEmptyView(findViewById(R.id.empty));
    mDbManager = new DBManager(this);
    query = null;
    
      // Get the intent, verify the action and get the query
      Intent intent = getIntent();
      if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        query = intent.getStringExtra(SearchManager.QUERY);
      }
  }
  
  public void findViews() {
    mListView = (ListView) findViewById(R.id.list_note);
    mListView.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
        Intent intent = new Intent(SearchableActivity.this, EditActivity.class);
        intent.putExtra(Note.FIELD__ID, (int)id);
        startActivityForResult(intent, RESULT_FIRST_USER);
      }
    });
    mListView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
      @Override
      public void onCreateContextMenu(ContextMenu menu, View v,
          ContextMenuInfo menuInfo) {
        menu.add(0, MENU_DELETE, 0, "??");
        menu.setHeaderTitle("??????????");
      }
    });
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
    switch (item.getItemId()) {
    case MENU_DELETE:
      mDbManager.delete(new Note((int) info.id));
      showList();
      break;
    default:
      break;
    }
    return super.onContextItemSelected(item);
  }

  @Override
  protected void onDestroy() {
    mDbManager.closeDBManager();
    super.onDestroy();
  }
  
  @Override
  protected void onResume() {
    showList();
    super.onResume();
  }

  public void showList() {
    Cursor cursor = mDbManager.query(query);
    int count = cursor.getCount();
    setTitle("??? " + count + " ?????");
    
    DateSimpleCursorAdapter adapter = (DateSimpleCursorAdapter) mListView.getAdapter();
    if (null != adapter) {
      adapter.changeCursor(cursor);
      adapter.notifyDataSetChanged();
    } else {
      String[] from = new String[]{ Note.FIELD_SNAP, Note.FIELD_PUB_DATE };
      int[] to = new int[]{ R.id.note_list_item, R.id.note_list_item_date };
      adapter = new DateSimpleCursorAdapter(this, R.layout.note_list_item, cursor, from, to);
      mListView.setAdapter(adapter);
    }
  }
}

Java Source Code List

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