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Add saved Search queries feature

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- update SearchResultsSummary fragment to have two lists:
one for Search suggestions (saved queries) and one for
Search results
- a tap on a saved query will launch that Search query
- show the list of saved queries when tapping on the SearchView
- do some fancy hidding / unhidding of the saved queries list
and results list

Change-Id: If15055ab78b0ec5eef4e543173dc7b866bd08e27
This commit is contained in:
Fabrice Di Meglio
2014-04-22 17:23:23 -07:00
parent 891bbfdbb7
commit d297a58402
7 changed files with 468 additions and 108 deletions
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287
src/com/android/settings/dashboard/SearchResultsSummary.java
View File

@@ -28,7 +28,6 @@ import android.database.sqlite.SQLiteDatabase;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
@@ -38,6 +37,7 @@ 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.settings.R;
import com.android.settings.SettingsActivity;
@@ -54,17 +54,23 @@ public class SearchResultsSummary extends Fragment {
private static final String LOG_TAG = "SearchResultsSummary";
private static final String EMPTY_QUERY = "";
private static char ELLIPSIS = '\u2026';
private ListView mListView;
private SearchView mSearchView;
private SearchResultsAdapter mAdapter;
private ListView mResultsListView;
private SearchResultsAdapter mResultsAdapter;
private UpdateSearchResultsTask mUpdateSearchResultsTask;
private String mQuery;
private SaveSearchQueryTask mSaveSearchQueryTask;
private ListView mSuggestionsListView;
private SuggestionsAdapter mSuggestionsAdapter;
private UpdateSuggestionsTask mUpdateSuggestionsTask;
private static long MAX_SAVED_SEARCH_QUERY = 5;
private ViewGroup mLayoutSuggestions;
private ViewGroup mLayoutResults;
private String mQuery;
/**
* A basic AsyncTask for updating the query results cursor
@@ -78,7 +84,7 @@ public class SearchResultsSummary extends Fragment {
@Override
protected void onPostExecute(Cursor cursor) {
if (!isCancelled()) {
setCursor(cursor);
setResultsCursor(cursor);
} else if (cursor != null) {
cursor.close();
}
@@ -86,37 +92,21 @@ public class SearchResultsSummary extends Fragment {
}
/**
* A basic AsynTask for saving the Search query into the database
* A basic AsyncTask for updating the suggestions cursor
*/
private class SaveSearchQueryTask extends AsyncTask<String, Void, Long> {
private class UpdateSuggestionsTask extends AsyncTask<String, Void, Cursor> {
@Override
protected Cursor doInBackground(String... params) {
return Index.getInstance(getActivity()).getSuggestions(params[0]);
}
@Override
protected Long doInBackground(String... params) {
final long now = new Date().getTime();
final ContentValues values = new ContentValues();
values.put(SavedQueriesColums.QUERY, params[0]);
values.put(SavedQueriesColums.TIME_STAMP, now);
SQLiteDatabase database = IndexDatabaseHelper.getInstance(
getActivity()).getWritableDatabase();
long lastInsertedRowId = -1;
try {
lastInsertedRowId =
database.insert(Tables.TABLE_SAVED_QUERIES, null, values);
final long delta = lastInsertedRowId - MAX_SAVED_SEARCH_QUERY;
if (delta > 0) {
int count = database.delete(Tables.TABLE_SAVED_QUERIES, "rowId <= ?",
new String[] { Long.toString(delta) });
Log.d(LOG_TAG, "Deleted '" + count + "' saved Search query(ies)");
}
} catch (Exception e) {
Log.d(LOG_TAG, "Cannot update saved Search queries", e);
protected void onPostExecute(Cursor cursor) {
if (!isCancelled()) {
setSuggestionsCursor(cursor);
} else if (cursor != null) {
cursor.close();
}
return lastInsertedRowId;
}
}
@@ -124,22 +114,30 @@ public class SearchResultsSummary extends Fragment {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAdapter = new SearchResultsAdapter(getActivity());
mResultsAdapter = new SearchResultsAdapter(getActivity());
mSuggestionsAdapter = new SuggestionsAdapter(getActivity());
}
@Override
public void onStop() {
super.onStop();
clearSuggestions();
clearResults();
}
@Override
public void onDestroy() {
mListView = null;
mAdapter = null;
mResultsListView = null;
mResultsAdapter = null;
mUpdateSearchResultsTask = null;
mSuggestionsListView = null;
mSuggestionsAdapter = null;
mUpdateSuggestionsTask = null;
mSearchView = null;
super.onDestroy();
}
@@ -147,14 +145,17 @@ public class SearchResultsSummary extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.search_results, container, false);
final View view = inflater.inflate(R.layout.search_panel, container, false);
mListView = (ListView) view.findViewById(R.id.list_results);
mListView.setAdapter(mAdapter);
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
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) {
final Cursor cursor = mAdapter.mCursor;
final Cursor cursor = mResultsAdapter.mCursor;
cursor.moveToPosition(position);
final String className = cursor.getString(Index.COLUMN_INDEX_CLASS_NAME);
@@ -192,33 +193,85 @@ public class SearchResultsSummary extends Fragment {
}
});
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) {
final Cursor cursor = mSuggestionsAdapter.mCursor;
cursor.moveToPosition(position);
mQuery = cursor.getString(0);
mSearchView.setQuery(mQuery, false);
setSuggestionsVisibility(false);
}
});
return view;
}
private void saveQueryToDatabase() {
if (mSaveSearchQueryTask != null) {
mSaveSearchQueryTask.cancel(false);
mSaveSearchQueryTask = null;
}
if (!TextUtils.isEmpty(mQuery)) {
mSaveSearchQueryTask = new SaveSearchQueryTask();
mSaveSearchQueryTask.execute(mQuery);
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
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) {
updateSearchResults(query);
mQuery = getFilteredQueryString(query);
updateSearchResults();
return true;
}
public boolean onQueryTextChange(String query) {
updateSearchResults(query);
mQuery = getFilteredQueryString(query);
updateSuggestions();
updateSearchResults();
return true;
}
public boolean onClose() {
clearResults();
return false;
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() {
@@ -226,20 +279,23 @@ public class SearchResultsSummary extends Fragment {
mUpdateSearchResultsTask.cancel(false);
mUpdateSearchResultsTask = null;
}
setCursor(null);
setResultsCursor(null);
}
private void setCursor(Cursor cursor) {
if (mAdapter == null) {
private void setResultsCursor(Cursor cursor) {
if (mResultsAdapter == null) {
return;
}
Cursor oldCursor = mAdapter.swapCursor(cursor);
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);
@@ -251,20 +307,123 @@ public class SearchResultsSummary extends Fragment {
return filtered.toString();
}
private void updateSearchResults(CharSequence cs) {
private void updateSuggestions() {
if (mUpdateSuggestionsTask != null) {
mUpdateSuggestionsTask.cancel(false);
mUpdateSuggestionsTask = null;
}
if (mQuery == null) {
setSuggestionsCursor(null);
} else {
setSuggestionsVisibility(true);
mUpdateSuggestionsTask = new UpdateSuggestionsTask();
mUpdateSuggestionsTask.execute(mQuery);
}
}
private void updateSearchResults() {
if (mUpdateSearchResultsTask != null) {
mUpdateSearchResultsTask.cancel(false);
mUpdateSearchResultsTask = null;
}
mQuery = getFilteredQueryString(cs);
if (TextUtils.isEmpty(mQuery)) {
setCursor(null);
setResultsVisibility(false);
setResultsCursor(null);
} else {
setResultsVisibility(true);
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;
@@ -288,10 +447,10 @@ public class SearchResultsSummary extends Fragment {
private static class SearchResultsAdapter extends BaseAdapter {
private Context mContext;
private Cursor mCursor;
private LayoutInflater mInflater;
private boolean mDataValid;
private Context mContext;
private HashMap<String, Context> mContextMap = new HashMap<String, Context>();
private static final String PERCENT_RECLACE = "%s";
@@ -299,7 +458,7 @@ public class SearchResultsSummary extends Fragment {
public SearchResultsAdapter(Context context) {
mContext = context;
mInflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mDataValid = false;
}