src/com/android/settings/dashboard/SearchResultsSummary.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2014 The Android Open Source Project
  *
  * 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.android.settings.dashboard;

 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.database.Cursor;
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.BaseAdapter;
 import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.SearchView;
 import android.widget.TextView;

 import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.Utils;
 import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.search.Index;

 import java.util.HashMap;

 public class SearchResultsSummary extends InstrumentedFragment {

     private static final String LOG_TAG = "SearchResultsSummary";

     private static final String EMPTY_QUERY = "";
     private static char ELLIPSIS = '\u2026';

     private static final String SAVE_KEY_SHOW_RESULTS = ":settings:show_results";

     private SearchView mSearchView;

     private ListView mResultsListView;
     private SearchResultsAdapter mResultsAdapter;
     private UpdateSearchResultsTask mUpdateSearchResultsTask;

     private ListView mSuggestionsListView;
     private SuggestionsAdapter mSuggestionsAdapter;
     private UpdateSuggestionsTask mUpdateSuggestionsTask;

     private ViewGroup mLayoutSuggestions;
     private ViewGroup mLayoutResults;

     private String mQuery;

     private boolean mShowResults;

     /**
      * A basic AsyncTask for updating the query results cursor
      */
     private class UpdateSearchResultsTask extends AsyncTask<String, Void, Cursor> {
         @Override
         protected Cursor doInBackground(String... params) {
             return Index.getInstance(getActivity()).search(params[0]);
         }

         @Override
         protected void onPostExecute(Cursor cursor) {
             if (!isCancelled()) {
                 mMetricsFeatureProvider.action(getContext(),
                         MetricsEvent.ACTION_SEARCH_RESULTS, cursor.getCount());
                 setResultsCursor(cursor);
                 setResultsVisibility(cursor.getCount() > 0);
             } else if (cursor != null) {
                 cursor.close();
             }
         }
     }

     /**
      * A basic AsyncTask for updating the suggestions cursor
      */
     private class UpdateSuggestionsTask extends AsyncTask<String, Void, Cursor> {
         @Override
         protected Cursor doInBackground(String... params) {
             return Index.getInstance(getActivity()).getSuggestions(params[0]);
         }

         @Override
         protected void onPostExecute(Cursor cursor) {
             if (!isCancelled()) {
                 setSuggestionsCursor(cursor);
                 setSuggestionsVisibility(cursor.getCount() > 0);
             } else if (cursor != null) {
                 cursor.close();
             }
         }
     }

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         mResultsAdapter = new SearchResultsAdapter(getActivity());
         mSuggestionsAdapter = new SuggestionsAdapter(getActivity());

         if (savedInstanceState != null) {
             mShowResults = savedInstanceState.getBoolean(SAVE_KEY_SHOW_RESULTS);
         }
     }

     @Override
     public void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);

         outState.putBoolean(SAVE_KEY_SHOW_RESULTS, mShowResults);
     }

     @Override
     public void onStop() {
         super.onStop();

         clearSuggestions();
         clearResults();
     }

     @Override
     public void onDestroy() {
         mResultsListView = null;
         mResultsAdapter = null;
         mUpdateSearchResultsTask = null;

         mSuggestionsListView = null;
         mSuggestionsAdapter = null;
         mUpdateSuggestionsTask = null;

         mSearchView = null;

         super.onDestroy();
     }

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

         final View view = inflater.inflate(R.layout.search_panel, container, false);

         mLayoutSuggestions = (ViewGroup) view.findViewById(R.id.layout_suggestions);
         mLayoutResults = (ViewGroup) view.findViewById(R.id.layout_results);

         mResultsListView = (ListView) view.findViewById(R.id.list_results);
         mResultsListView.setAdapter(mResultsAdapter);
         mResultsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                 // We have a header, so we need to decrement the position by one
                 position--;

                 // Some Monkeys could create a case where they were probably clicking on the
                 // List Header and thus the position passed was "0" and then by decrement was "-1"
                 if (position < 0) {
                     return;
                 }

                 final Cursor cursor = mResultsAdapter.mCursor;
                 cursor.moveToPosition(position);

                 final String className = cursor.getString(Index.COLUMN_INDEX_CLASS_NAME);
                 final String screenTitle = cursor.getString(Index.COLUMN_INDEX_SCREEN_TITLE);
                 final String action = cursor.getString(Index.COLUMN_INDEX_INTENT_ACTION);
                 final String key = cursor.getString(Index.COLUMN_INDEX_KEY);

                 final SettingsActivity sa = (SettingsActivity) getActivity();
                 sa.needToRevertToInitialFragment();

                 if (TextUtils.isEmpty(action)) {
                     Bundle args = new Bundle();
                     args.putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);

                     Utils.startWithFragment(sa, className, args, null, 0, -1, screenTitle);
                 } else {
                     final Intent intent = new Intent(action);

                     final String targetPackage = cursor.getString(
                             Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
                     final String targetClass = cursor.getString(
                             Index.COLUMN_INDEX_INTENT_ACTION_TARGET_CLASS);
                     if (!TextUtils.isEmpty(targetPackage) && !TextUtils.isEmpty(targetClass)) {
                         final ComponentName component =
                                 new ComponentName(targetPackage, targetClass);
                         intent.setComponent(component);
                     }
                     intent.putExtra(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);

                     sa.startActivity(intent);
                 }

                 saveQueryToDatabase();
             }
         });
         mResultsListView.addHeaderView(
                 LayoutInflater.from(getActivity()).inflate(
                         R.layout.search_panel_results_header, mResultsListView, false),
                 null, false);

         mSuggestionsListView = (ListView) view.findViewById(R.id.list_suggestions);
         mSuggestionsListView.setAdapter(mSuggestionsAdapter);
         mSuggestionsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                 // We have a header, so we need to decrement the position by one
                 position--;
                 // Some Monkeys could create a case where they were probably clicking on the
                 // List Header and thus the position passed was "0" and then by decrement was "-1"
                 if (position < 0) {
                     return;
                 }
                 final Cursor cursor = mSuggestionsAdapter.mCursor;
                 cursor.moveToPosition(position);

                 mShowResults = true;
                 mQuery = cursor.getString(0);
                 mSearchView.setQuery(mQuery, false);
             }
         });
         mSuggestionsListView.addHeaderView(
                 LayoutInflater.from(getActivity()).inflate(
                         R.layout.search_panel_suggestions_header, mSuggestionsListView, false),
                 null, false);

         return view;
     }

     @Override
     public int getMetricsCategory() {
         return MetricsEvent.DASHBOARD_SEARCH_RESULTS;
     }

     @Override
     public void onResume() {
         super.onResume();

         if (!mShowResults) {
             showSomeSuggestions();
         }
     }

     public void setSearchView(SearchView searchView) {
         mSearchView = searchView;
     }

     private void setSuggestionsVisibility(boolean visible) {
         if (mLayoutSuggestions != null) {
             mLayoutSuggestions.setVisibility(visible ? View.VISIBLE : View.GONE);
         }
     }

     private void setResultsVisibility(boolean visible) {
         if (mLayoutResults != null) {
             mLayoutResults.setVisibility(visible ? View.VISIBLE : View.GONE);
         }
     }

     private void saveQueryToDatabase() {
         Index.getInstance(getActivity()).addSavedQuery(mQuery);
     }

     public boolean onQueryTextSubmit(String query) {
         mQuery = getFilteredQueryString(query);
         mShowResults = true;
         setSuggestionsVisibility(false);
         updateSearchResults();
         saveQueryToDatabase();

         return false;
     }

     public boolean onQueryTextChange(String query) {
         final String newQuery = getFilteredQueryString(query);

         mQuery = newQuery;

         if (TextUtils.isEmpty(mQuery)) {
             mShowResults = false;
             setResultsVisibility(false);
             updateSuggestions();
         } else {
             mShowResults = true;
             setSuggestionsVisibility(false);
             updateSearchResults();
         }

         return true;
     }

     public void showSomeSuggestions() {
         setResultsVisibility(false);
         mQuery = EMPTY_QUERY;
         updateSuggestions();
     }

     private void clearSuggestions() {
         if (mUpdateSuggestionsTask != null) {
             mUpdateSuggestionsTask.cancel(false);
             mUpdateSuggestionsTask = null;
         }
         setSuggestionsCursor(null);
     }

     private void setSuggestionsCursor(Cursor cursor) {
         if (mSuggestionsAdapter == null) {
             return;
         }
         Cursor oldCursor = mSuggestionsAdapter.swapCursor(cursor);
         if (oldCursor != null) {
             oldCursor.close();
         }
     }

     private void clearResults() {
         if (mUpdateSearchResultsTask != null) {
             mUpdateSearchResultsTask.cancel(false);
             mUpdateSearchResultsTask = null;
         }
         setResultsCursor(null);
     }

     private void setResultsCursor(Cursor cursor) {
         if (mResultsAdapter == null) {
             return;
         }
         Cursor oldCursor = mResultsAdapter.swapCursor(cursor);
         if (oldCursor != null) {
             oldCursor.close();
         }
     }

     private String getFilteredQueryString(CharSequence query) {
         if (query == null) {
             return null;
         }
         final StringBuilder filtered = new StringBuilder();
         for (int n = 0; n < query.length(); n++) {
             char c = query.charAt(n);
             if (!Character.isLetterOrDigit(c) && !Character.isSpaceChar(c)) {
                 continue;
             }
             filtered.append(c);
         }
         return filtered.toString();
     }

     private void clearAllTasks() {
         if (mUpdateSearchResultsTask != null) {
             mUpdateSearchResultsTask.cancel(false);
             mUpdateSearchResultsTask = null;
         }
         if (mUpdateSuggestionsTask != null) {
             mUpdateSuggestionsTask.cancel(false);
             mUpdateSuggestionsTask = null;
         }
     }

     private void updateSuggestions() {
         clearAllTasks();
         if (mQuery == null) {
             setSuggestionsCursor(null);
         } else {
             mUpdateSuggestionsTask = new UpdateSuggestionsTask();
             mUpdateSuggestionsTask.execute(mQuery);
         }
     }

     private void updateSearchResults() {
         clearAllTasks();
         if (TextUtils.isEmpty(mQuery)) {
             setResultsVisibility(false);
             setResultsCursor(null);
         } else {
             mUpdateSearchResultsTask = new UpdateSearchResultsTask();
             mUpdateSearchResultsTask.execute(mQuery);
         }
     }

     private static class SuggestionItem {
         public String query;

         public SuggestionItem(String query) {
             this.query = query;
         }
     }

     private static class SuggestionsAdapter extends BaseAdapter {

         private static final int COLUMN_SUGGESTION_QUERY = 0;
         private static final int COLUMN_SUGGESTION_TIMESTAMP = 1;

         private Context mContext;
         private Cursor mCursor;
         private LayoutInflater mInflater;
         private boolean mDataValid = false;

         public SuggestionsAdapter(Context context) {
             mContext = context;
             mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             mDataValid = false;
         }

         public Cursor swapCursor(Cursor newCursor) {
             if (newCursor == mCursor) {
                 return null;
             }
             Cursor oldCursor = mCursor;
             mCursor = newCursor;
             if (newCursor != null) {
                 mDataValid = true;
                 notifyDataSetChanged();
             } else {
                 mDataValid = false;
                 notifyDataSetInvalidated();
             }
             return oldCursor;
         }

         @Override
         public int getCount() {
             if (!mDataValid || mCursor == null || mCursor.isClosed()) return 0;
             return mCursor.getCount();
         }

         @Override
         public Object getItem(int position) {
             if (mDataValid && mCursor.moveToPosition(position)) {
                 final String query = mCursor.getString(COLUMN_SUGGESTION_QUERY);

                 return new SuggestionItem(query);
             }
             return null;
         }

         @Override
         public long getItemId(int position) {
             return 0;
         }

         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
             if (!mDataValid && convertView == null) {
                 throw new IllegalStateException(
                         "this should only be called when the cursor is valid");
             }
             if (!mCursor.moveToPosition(position)) {
                 throw new IllegalStateException("couldn't move cursor to position " + position);
             }

             View view;

             if (convertView == null) {
                 view = mInflater.inflate(R.layout.search_suggestion_item, parent, false);
             } else {
                 view = convertView;
             }

             TextView query = (TextView) view.findViewById(R.id.title);

             SuggestionItem item = (SuggestionItem) getItem(position);
             query.setText(item.query);

             return view;
         }
     }

     private static class SearchResult {
         public Context context;
         public String title;
         public String summaryOn;
         public String summaryOff;
         public String entries;
         public int iconResId;
         public String key;

         public SearchResult(Context context, String title, String summaryOn, String summaryOff,
                             String entries, int iconResId, String key) {
             this.context = context;
             this.title = title;
             this.summaryOn = summaryOn;
             this.summaryOff = summaryOff;
             this.entries = entries;
             this.iconResId = iconResId;
             this.key = key;
         }
     }

     private static class SearchResultsAdapter extends BaseAdapter {

         private Context mContext;
         private Cursor mCursor;
         private LayoutInflater mInflater;
         private boolean mDataValid;
         private HashMap<String, Context> mContextMap = new HashMap<String, Context>();

         private static final String PERCENT_RECLACE = "%s";
         private static final String DOLLAR_REPLACE = "$s";

         public SearchResultsAdapter(Context context) {
             mContext = context;
             mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             mDataValid = false;
         }

         public Cursor swapCursor(Cursor newCursor) {
             if (newCursor == mCursor) {
                 return null;
             }
             Cursor oldCursor = mCursor;
             mCursor = newCursor;
             if (newCursor != null) {
                 mDataValid = true;
                 notifyDataSetChanged();
             } else {
                 mDataValid = false;
                 notifyDataSetInvalidated();
             }
             return oldCursor;
         }

         @Override
         public int getCount() {
             if (!mDataValid || mCursor == null || mCursor.isClosed()) return 0;
             return mCursor.getCount();
         }

         @Override
         public Object getItem(int position) {
             if (mDataValid && mCursor.moveToPosition(position)) {
                 final String title = mCursor.getString(Index.COLUMN_INDEX_TITLE);
                 final String summaryOn = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_ON);
                 final String summaryOff = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_OFF);
                 final String entries = mCursor.getString(Index.COLUMN_INDEX_ENTRIES);
                 final String iconResStr = mCursor.getString(Index.COLUMN_INDEX_ICON);
                 final String className = mCursor.getString(
                         Index.COLUMN_INDEX_CLASS_NAME);
                 final String packageName = mCursor.getString(
                         Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
                 final String key = mCursor.getString(
                         Index.COLUMN_INDEX_KEY);

                 Context packageContext;
                 if (TextUtils.isEmpty(className) && !TextUtils.isEmpty(packageName)) {
                     packageContext = mContextMap.get(packageName);
                     if (packageContext == null) {
                         try {
                             packageContext = mContext.createPackageContext(packageName, 0);
                         } catch (PackageManager.NameNotFoundException e) {
                             Log.e(LOG_TAG, "Cannot create Context for package: " + packageName);
                             return null;
                         }
                         mContextMap.put(packageName, packageContext);
                     }
                 } else {
                     packageContext = mContext;
                 }

                 final int iconResId = TextUtils.isEmpty(iconResStr) ?
                         R.drawable.empty_icon : Integer.parseInt(iconResStr);

                 return new SearchResult(packageContext, title, summaryOn, summaryOff,
                         entries, iconResId, key);
             }
             return null;
         }

         @Override
         public long getItemId(int position) {
             return 0;
         }

         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
             if (!mDataValid && convertView == null) {
                 throw new IllegalStateException(
                         "this should only be called when the cursor is valid");
             }
             if (!mCursor.moveToPosition(position)) {
                 throw new IllegalStateException("couldn't move cursor to position " + position);
             }

             View view;
             TextView textTitle;
             ImageView imageView;

             if (convertView == null) {
                 view = mInflater.inflate(R.layout.search_result_item, parent, false);
             } else {
                 view = convertView;
             }

             textTitle = (TextView) view.findViewById(R.id.title);
             imageView = (ImageView) view.findViewById(R.id.icon);

             final SearchResult result = (SearchResult) getItem(position);
             textTitle.setText(result.title);

             if (result.iconResId != R.drawable.empty_icon) {
                 final Context packageContext = result.context;
                 final Drawable drawable;
                 try {
                     drawable = packageContext.getDrawable(result.iconResId);
                     imageView.setImageDrawable(drawable);
                 } catch (Resources.NotFoundException nfe) {
                     // Not much we can do except logging
                     Log.e(LOG_TAG, "Cannot load Drawable for " + result.title);
                 }
             } else {
                 imageView.setImageDrawable(null);
                 imageView.setBackgroundResource(R.drawable.empty_icon);
             }

             return view;
         }
     }
 }
	/*
	* Copyright (C) 2014 The Android Open Source Project
	*
	* 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.android.settings.dashboard;

	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.res.Resources;
	import android.database.Cursor;
	import android.graphics.drawable.Drawable;
	import android.os.AsyncTask;
	import android.os.Bundle;
	import android.text.TextUtils;
	import android.util.Log;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.AdapterView;
	import android.widget.BaseAdapter;
	import android.widget.ImageView;
	import android.widget.ListView;
	import android.widget.SearchView;
	import android.widget.TextView;

	import com.android.internal.logging.MetricsProto.MetricsEvent;
	import com.android.settings.R;
	import com.android.settings.SettingsActivity;
	import com.android.settings.Utils;
	import com.android.settings.core.InstrumentedFragment;
	import com.android.settings.search.Index;

	import java.util.HashMap;

	public class SearchResultsSummary extends InstrumentedFragment {

	private static final String LOG_TAG = "SearchResultsSummary";

	private static final String EMPTY_QUERY = "";
	private static char ELLIPSIS = '\u2026';

	private static final String SAVE_KEY_SHOW_RESULTS = ":settings:show_results";

	private SearchView mSearchView;

	private ListView mResultsListView;
	private SearchResultsAdapter mResultsAdapter;
	private UpdateSearchResultsTask mUpdateSearchResultsTask;

	private ListView mSuggestionsListView;
	private SuggestionsAdapter mSuggestionsAdapter;
	private UpdateSuggestionsTask mUpdateSuggestionsTask;

	private ViewGroup mLayoutSuggestions;
	private ViewGroup mLayoutResults;

	private String mQuery;

	private boolean mShowResults;

	/**
	* A basic AsyncTask for updating the query results cursor
	*/
	private class UpdateSearchResultsTask extends AsyncTask<String, Void, Cursor> {
	@Override
	protected Cursor doInBackground(String... params) {
	return Index.getInstance(getActivity()).search(params[0]);
	}

	@Override
	protected void onPostExecute(Cursor cursor) {
	if (!isCancelled()) {
	mMetricsFeatureProvider.action(getContext(),
	MetricsEvent.ACTION_SEARCH_RESULTS, cursor.getCount());
	setResultsCursor(cursor);
	setResultsVisibility(cursor.getCount() > 0);
	} else if (cursor != null) {
	cursor.close();
	}
	}
	}

	/**
	* A basic AsyncTask for updating the suggestions cursor
	*/
	private class UpdateSuggestionsTask extends AsyncTask<String, Void, Cursor> {
	@Override
	protected Cursor doInBackground(String... params) {
	return Index.getInstance(getActivity()).getSuggestions(params[0]);
	}

	@Override
	protected void onPostExecute(Cursor cursor) {
	if (!isCancelled()) {
	setSuggestionsCursor(cursor);
	setSuggestionsVisibility(cursor.getCount() > 0);
	} else if (cursor != null) {
	cursor.close();
	}
	}
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	mResultsAdapter = new SearchResultsAdapter(getActivity());
	mSuggestionsAdapter = new SuggestionsAdapter(getActivity());

	if (savedInstanceState != null) {
	mShowResults = savedInstanceState.getBoolean(SAVE_KEY_SHOW_RESULTS);
	}
	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);

	outState.putBoolean(SAVE_KEY_SHOW_RESULTS, mShowResults);
	}

	@Override
	public void onStop() {
	super.onStop();

	clearSuggestions();
	clearResults();
	}

	@Override
	public void onDestroy() {
	mResultsListView = null;
	mResultsAdapter = null;
	mUpdateSearchResultsTask = null;

	mSuggestionsListView = null;
	mSuggestionsAdapter = null;
	mUpdateSuggestionsTask = null;

	mSearchView = null;

	super.onDestroy();
	}

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

	final View view = inflater.inflate(R.layout.search_panel, container, false);

	mLayoutSuggestions = (ViewGroup) view.findViewById(R.id.layout_suggestions);
	mLayoutResults = (ViewGroup) view.findViewById(R.id.layout_results);

	mResultsListView = (ListView) view.findViewById(R.id.list_results);
	mResultsListView.setAdapter(mResultsAdapter);
	mResultsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
	// We have a header, so we need to decrement the position by one
	position--;

	// Some Monkeys could create a case where they were probably clicking on the
	// List Header and thus the position passed was "0" and then by decrement was "-1"
	if (position < 0) {
	return;
	}

	final Cursor cursor = mResultsAdapter.mCursor;
	cursor.moveToPosition(position);

	final String className = cursor.getString(Index.COLUMN_INDEX_CLASS_NAME);
	final String screenTitle = cursor.getString(Index.COLUMN_INDEX_SCREEN_TITLE);
	final String action = cursor.getString(Index.COLUMN_INDEX_INTENT_ACTION);
	final String key = cursor.getString(Index.COLUMN_INDEX_KEY);

	final SettingsActivity sa = (SettingsActivity) getActivity();
	sa.needToRevertToInitialFragment();

	if (TextUtils.isEmpty(action)) {
	Bundle args = new Bundle();
	args.putString(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);

	Utils.startWithFragment(sa, className, args, null, 0, -1, screenTitle);
	} else {
	final Intent intent = new Intent(action);

	final String targetPackage = cursor.getString(
	Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
	final String targetClass = cursor.getString(
	Index.COLUMN_INDEX_INTENT_ACTION_TARGET_CLASS);
	if (!TextUtils.isEmpty(targetPackage) && !TextUtils.isEmpty(targetClass)) {
	final ComponentName component =
	new ComponentName(targetPackage, targetClass);
	intent.setComponent(component);
	}
	intent.putExtra(SettingsActivity.EXTRA_FRAGMENT_ARG_KEY, key);

	sa.startActivity(intent);
	}

	saveQueryToDatabase();
	}
	});
	mResultsListView.addHeaderView(
	LayoutInflater.from(getActivity()).inflate(
	R.layout.search_panel_results_header, mResultsListView, false),
	null, false);

	mSuggestionsListView = (ListView) view.findViewById(R.id.list_suggestions);
	mSuggestionsListView.setAdapter(mSuggestionsAdapter);
	mSuggestionsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
	// We have a header, so we need to decrement the position by one
	position--;
	// Some Monkeys could create a case where they were probably clicking on the
	// List Header and thus the position passed was "0" and then by decrement was "-1"
	if (position < 0) {
	return;
	}
	final Cursor cursor = mSuggestionsAdapter.mCursor;
	cursor.moveToPosition(position);

	mShowResults = true;
	mQuery = cursor.getString(0);
	mSearchView.setQuery(mQuery, false);
	}
	});
	mSuggestionsListView.addHeaderView(
	LayoutInflater.from(getActivity()).inflate(
	R.layout.search_panel_suggestions_header, mSuggestionsListView, false),
	null, false);

	return view;
	}

	@Override
	public int getMetricsCategory() {
	return MetricsEvent.DASHBOARD_SEARCH_RESULTS;
	}

	@Override
	public void onResume() {
	super.onResume();

	if (!mShowResults) {
	showSomeSuggestions();
	}
	}

	public void setSearchView(SearchView searchView) {
	mSearchView = searchView;
	}

	private void setSuggestionsVisibility(boolean visible) {
	if (mLayoutSuggestions != null) {
	mLayoutSuggestions.setVisibility(visible ? View.VISIBLE : View.GONE);
	}
	}

	private void setResultsVisibility(boolean visible) {
	if (mLayoutResults != null) {
	mLayoutResults.setVisibility(visible ? View.VISIBLE : View.GONE);
	}
	}

	private void saveQueryToDatabase() {
	Index.getInstance(getActivity()).addSavedQuery(mQuery);
	}

	public boolean onQueryTextSubmit(String query) {
	mQuery = getFilteredQueryString(query);
	mShowResults = true;
	setSuggestionsVisibility(false);
	updateSearchResults();
	saveQueryToDatabase();

	return false;
	}

	public boolean onQueryTextChange(String query) {
	final String newQuery = getFilteredQueryString(query);

	mQuery = newQuery;

	if (TextUtils.isEmpty(mQuery)) {
	mShowResults = false;
	setResultsVisibility(false);
	updateSuggestions();
	} else {
	mShowResults = true;
	setSuggestionsVisibility(false);
	updateSearchResults();
	}

	return true;
	}

	public void showSomeSuggestions() {
	setResultsVisibility(false);
	mQuery = EMPTY_QUERY;
	updateSuggestions();
	}

	private void clearSuggestions() {
	if (mUpdateSuggestionsTask != null) {
	mUpdateSuggestionsTask.cancel(false);
	mUpdateSuggestionsTask = null;
	}
	setSuggestionsCursor(null);
	}

	private void setSuggestionsCursor(Cursor cursor) {
	if (mSuggestionsAdapter == null) {
	return;
	}
	Cursor oldCursor = mSuggestionsAdapter.swapCursor(cursor);
	if (oldCursor != null) {
	oldCursor.close();
	}
	}

	private void clearResults() {
	if (mUpdateSearchResultsTask != null) {
	mUpdateSearchResultsTask.cancel(false);
	mUpdateSearchResultsTask = null;
	}
	setResultsCursor(null);
	}

	private void setResultsCursor(Cursor cursor) {
	if (mResultsAdapter == null) {
	return;
	}
	Cursor oldCursor = mResultsAdapter.swapCursor(cursor);
	if (oldCursor != null) {
	oldCursor.close();
	}
	}

	private String getFilteredQueryString(CharSequence query) {
	if (query == null) {
	return null;
	}
	final StringBuilder filtered = new StringBuilder();
	for (int n = 0; n < query.length(); n++) {
	char c = query.charAt(n);
	if (!Character.isLetterOrDigit(c) && !Character.isSpaceChar(c)) {
	continue;
	}
	filtered.append(c);
	}
	return filtered.toString();
	}

	private void clearAllTasks() {
	if (mUpdateSearchResultsTask != null) {
	mUpdateSearchResultsTask.cancel(false);
	mUpdateSearchResultsTask = null;
	}
	if (mUpdateSuggestionsTask != null) {
	mUpdateSuggestionsTask.cancel(false);
	mUpdateSuggestionsTask = null;
	}
	}

	private void updateSuggestions() {
	clearAllTasks();
	if (mQuery == null) {
	setSuggestionsCursor(null);
	} else {
	mUpdateSuggestionsTask = new UpdateSuggestionsTask();
	mUpdateSuggestionsTask.execute(mQuery);
	}
	}

	private void updateSearchResults() {
	clearAllTasks();
	if (TextUtils.isEmpty(mQuery)) {
	setResultsVisibility(false);
	setResultsCursor(null);
	} else {
	mUpdateSearchResultsTask = new UpdateSearchResultsTask();
	mUpdateSearchResultsTask.execute(mQuery);
	}
	}

	private static class SuggestionItem {
	public String query;

	public SuggestionItem(String query) {
	this.query = query;
	}
	}

	private static class SuggestionsAdapter extends BaseAdapter {

	private static final int COLUMN_SUGGESTION_QUERY = 0;
	private static final int COLUMN_SUGGESTION_TIMESTAMP = 1;

	private Context mContext;
	private Cursor mCursor;
	private LayoutInflater mInflater;
	private boolean mDataValid = false;

	public SuggestionsAdapter(Context context) {
	mContext = context;
	mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	mDataValid = false;
	}

	public Cursor swapCursor(Cursor newCursor) {
	if (newCursor == mCursor) {
	return null;
	}
	Cursor oldCursor = mCursor;
	mCursor = newCursor;
	if (newCursor != null) {
	mDataValid = true;
	notifyDataSetChanged();
	} else {
	mDataValid = false;
	notifyDataSetInvalidated();
	}
	return oldCursor;
	}

	@Override
	public int getCount() {
	if (!mDataValid \|\| mCursor == null \|\| mCursor.isClosed()) return 0;
	return mCursor.getCount();
	}

	@Override
	public Object getItem(int position) {
	if (mDataValid && mCursor.moveToPosition(position)) {
	final String query = mCursor.getString(COLUMN_SUGGESTION_QUERY);

	return new SuggestionItem(query);
	}
	return null;
	}

	@Override
	public long getItemId(int position) {
	return 0;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
	if (!mDataValid && convertView == null) {
	throw new IllegalStateException(
	"this should only be called when the cursor is valid");
	}
	if (!mCursor.moveToPosition(position)) {
	throw new IllegalStateException("couldn't move cursor to position " + position);
	}

	View view;

	if (convertView == null) {
	view = mInflater.inflate(R.layout.search_suggestion_item, parent, false);
	} else {
	view = convertView;
	}

	TextView query = (TextView) view.findViewById(R.id.title);

	SuggestionItem item = (SuggestionItem) getItem(position);
	query.setText(item.query);

	return view;
	}
	}

	private static class SearchResult {
	public Context context;
	public String title;
	public String summaryOn;
	public String summaryOff;
	public String entries;
	public int iconResId;
	public String key;

	public SearchResult(Context context, String title, String summaryOn, String summaryOff,
	String entries, int iconResId, String key) {
	this.context = context;
	this.title = title;
	this.summaryOn = summaryOn;
	this.summaryOff = summaryOff;
	this.entries = entries;
	this.iconResId = iconResId;
	this.key = key;
	}
	}

	private static class SearchResultsAdapter extends BaseAdapter {

	private Context mContext;
	private Cursor mCursor;
	private LayoutInflater mInflater;
	private boolean mDataValid;
	private HashMap<String, Context> mContextMap = new HashMap<String, Context>();

	private static final String PERCENT_RECLACE = "%s";
	private static final String DOLLAR_REPLACE = "$s";

	public SearchResultsAdapter(Context context) {
	mContext = context;
	mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	mDataValid = false;
	}

	public Cursor swapCursor(Cursor newCursor) {
	if (newCursor == mCursor) {
	return null;
	}
	Cursor oldCursor = mCursor;
	mCursor = newCursor;
	if (newCursor != null) {
	mDataValid = true;
	notifyDataSetChanged();
	} else {
	mDataValid = false;
	notifyDataSetInvalidated();
	}
	return oldCursor;
	}

	@Override
	public int getCount() {
	if (!mDataValid \|\| mCursor == null \|\| mCursor.isClosed()) return 0;
	return mCursor.getCount();
	}

	@Override
	public Object getItem(int position) {
	if (mDataValid && mCursor.moveToPosition(position)) {
	final String title = mCursor.getString(Index.COLUMN_INDEX_TITLE);
	final String summaryOn = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_ON);
	final String summaryOff = mCursor.getString(Index.COLUMN_INDEX_SUMMARY_OFF);
	final String entries = mCursor.getString(Index.COLUMN_INDEX_ENTRIES);
	final String iconResStr = mCursor.getString(Index.COLUMN_INDEX_ICON);
	final String className = mCursor.getString(
	Index.COLUMN_INDEX_CLASS_NAME);
	final String packageName = mCursor.getString(
	Index.COLUMN_INDEX_INTENT_ACTION_TARGET_PACKAGE);
	final String key = mCursor.getString(
	Index.COLUMN_INDEX_KEY);

	Context packageContext;
	if (TextUtils.isEmpty(className) && !TextUtils.isEmpty(packageName)) {
	packageContext = mContextMap.get(packageName);
	if (packageContext == null) {
	try {
	packageContext = mContext.createPackageContext(packageName, 0);
	} catch (PackageManager.NameNotFoundException e) {
	Log.e(LOG_TAG, "Cannot create Context for package: " + packageName);
	return null;
	}
	mContextMap.put(packageName, packageContext);
	}
	} else {
	packageContext = mContext;
	}

	final int iconResId = TextUtils.isEmpty(iconResStr) ?
	R.drawable.empty_icon : Integer.parseInt(iconResStr);

	return new SearchResult(packageContext, title, summaryOn, summaryOff,
	entries, iconResId, key);
	}
	return null;
	}

	@Override
	public long getItemId(int position) {
	return 0;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
	if (!mDataValid && convertView == null) {
	throw new IllegalStateException(
	"this should only be called when the cursor is valid");
	}
	if (!mCursor.moveToPosition(position)) {
	throw new IllegalStateException("couldn't move cursor to position " + position);
	}

	View view;
	TextView textTitle;
	ImageView imageView;

	if (convertView == null) {
	view = mInflater.inflate(R.layout.search_result_item, parent, false);
	} else {
	view = convertView;
	}

	textTitle = (TextView) view.findViewById(R.id.title);
	imageView = (ImageView) view.findViewById(R.id.icon);

	final SearchResult result = (SearchResult) getItem(position);
	textTitle.setText(result.title);

	if (result.iconResId != R.drawable.empty_icon) {
	final Context packageContext = result.context;
	final Drawable drawable;
	try {
	drawable = packageContext.getDrawable(result.iconResId);
	imageView.setImageDrawable(drawable);
	} catch (Resources.NotFoundException nfe) {
	// Not much we can do except logging
	Log.e(LOG_TAG, "Cannot load Drawable for " + result.title);
	}
	} else {
	imageView.setImageDrawable(null);
	imageView.setBackgroundResource(R.drawable.empty_icon);
	}

	return view;
	}
	}
	}