Android Open Source - MusicPlayer-OLD Search Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2012-2013 Andrea De Cesare/*ww  w . j  a  va  2 s.c  o  m*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.andreadec.musicplayer;

import java.io.File;
import java.util.*;

import android.annotation.SuppressLint;
import android.app.*;
import android.content.*;
import android.database.*;
import android.database.sqlite.*;
import android.os.*;
import android.preference.PreferenceManager;
import android.view.*;
import android.view.View.*;
import android.widget.*;
import android.widget.AdapterView.*;

import com.andreadec.musicplayer.adapters.*;
import com.andreadec.musicplayer.database.*;

public class SearchActivity extends Activity implements OnClickListener, OnItemClickListener, OnKeyListener {
  private EditText editTextSearch;
  private Button buttonSearch;
  private ListView listViewSearch;
  private SharedPreferences preferences;
  private MusicPlayerApplication application;
  private String lastSearch;
  
  @SuppressLint("NewApi")
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        preferences = PreferenceManager.getDefaultSharedPreferences(this);
        
        if(preferences.getBoolean(Constants.PREFERENCE_SHOWHELPOVERLAYINDEXING, true) && preferences.getString(Constants.PREFERENCE_BASEFOLDER, "/").equals("/")) {
          final FrameLayout frameLayout = new FrameLayout(this);
          LayoutInflater layoutInflater = getLayoutInflater();
          layoutInflater.inflate(R.layout.layout_search, frameLayout);
          layoutInflater.inflate(R.layout.layout_helpoverlay_indexing, frameLayout);
          final View overlayView = frameLayout.getChildAt(1);
          overlayView.setOnClickListener(new OnClickListener() {
        @Override public void onClick(View v) {
          frameLayout.removeView(overlayView);
          SharedPreferences.Editor editor = preferences.edit();
          editor.putBoolean("showHelpOverlayIndexing", false);
          editor.commit();
        }
          });
          setContentView(frameLayout);
        } else {
          setContentView(R.layout.layout_search);
        }
        
        if(Build.VERSION.SDK_INT >= 11) {
      getActionBar().setHomeButtonEnabled(true);
      getActionBar().setDisplayHomeAsUpEnabled(true);
    }
        
        editTextSearch = (EditText)findViewById(R.id.editTextSearch);
        editTextSearch.setOnKeyListener(this);
        buttonSearch = (Button)findViewById(R.id.buttonSearch);
        buttonSearch.setOnClickListener(this);
        listViewSearch = (ListView)findViewById(R.id.listViewSearch);
        listViewSearch.setOnItemClickListener(this);
        
        application = (MusicPlayerApplication)getApplication();
        lastSearch = application.getLastSearch();
        
        setResult(0, getIntent());
  }
  
  @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_search, menu);
        return true;
    }
  
  @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
    if(lastSearch==null || lastSearch.equals("")) {
      menu.findItem(R.id.menu_repeatLastSearch).setVisible(false);
        }
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
      Intent intent = new Intent(this, MainActivity.class);
      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
      startActivity(intent);
      return true;
    case R.id.menu_repeatLastSearch:
      if(lastSearch==null) return true;
      editTextSearch.setText(lastSearch);
      search();
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }

  @Override
  public void onClick(View view) {
    if(view.equals(buttonSearch)) {
      search();
    }
  }
  
  private void search() {
    String text = editTextSearch.getText().toString();
    search(text);
    application.setLastSearch(text);
  }
  
  private void search(String str) {
    str = str.replace("\"", "");
    str = str.trim();
    ArrayList<BrowserSong> results = new ArrayList<BrowserSong>();
    
    SongsDatabase songsDatabase = new SongsDatabase();
    SQLiteDatabase db = songsDatabase.getWritableDatabase();
    
    Cursor cursor = db.rawQuery("SELECT uri, artist, title, trackNumber, hasImage FROM Songs WHERE artist LIKE \"%"+str+"%\" OR title LIKE \"%"+str+"%\"", null);
    while(cursor.moveToNext()) {
      String uri = cursor.getString(0);
      String artist = cursor.getString(1);
      String title = cursor.getString(2);
          Integer trackNumber = cursor.getInt(3);
          if(trackNumber==-1) trackNumber=null;
          boolean hasImage = cursor.getInt(4)==1;
          BrowserSong song = new BrowserSong(uri, artist, title, trackNumber, hasImage, null);
          results.add(song);
        }
    db.close();
    
    if(results.size()==0) {
      Utils.showMessageDialog(this, R.string.noResultsFoundTitle, R.string.noResultsFoundMessage);
    } else {
      SearchResultsArrayAdapter adapter = new SearchResultsArrayAdapter(this, results);
      listViewSearch.setAdapter(adapter);
    }
  }
  
  private void deleteSongFromCache(BrowserSong song) {
    SongsDatabase songsDatabase = new SongsDatabase();
    SQLiteDatabase db = songsDatabase.getWritableDatabase();
    db.delete("Songs", "uri=\""+song.getUri()+"\"", null);
    db.close();
  }

  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    SearchResultsArrayAdapter adapter = (SearchResultsArrayAdapter)listViewSearch.getAdapter();
    BrowserSong song = adapter.getItem(position);
    Intent intent = getIntent();
    intent.putExtra("song", song);
    File songFile = new File(song.getUri());
    if(!songFile.exists()) {
      Utils.showMessageDialog(this, R.string.notFound, R.string.songNotFound);
      deleteSongFromCache(song);
      return;
    }
    setResult(1, intent);
    finish();
  }

  @Override
  public boolean onKey(View v, int keyCode, KeyEvent event) {
    // Manage "enter" key on keyboard
    if(event.getAction()==KeyEvent.ACTION_DOWN && keyCode==KeyEvent.KEYCODE_ENTER) {
      search();
      return true;
    }
    return false;
  }
}

Java Source Code List

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