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The source code is released under:
MIT License
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package net.alteridem.sunshine; /*from w ww . j a v a2 s. c o m*/ import android.content.Intent; import android.content.SharedPreferences; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.support.v4.app.LoaderManager; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.support.v4.widget.CursorAdapter; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ListView; import net.alteridem.sunshine.data.WeatherContract; import net.alteridem.sunshine.sync.WeatherSyncAdapter; import java.util.Date; import java.util.Locale; /** * A placeholder fragment containing a simple view. */ public class ForecastFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> { private static final String LOG_TAG = ForecastFragment.class.getSimpleName(); private ForecastAdapter mAdapter; private View mRootView; private boolean mUseTodaylayout; private static final int FORECAST_LOADER = 0; private static final String LIST_POSITION = "LIST_POSITION"; private int mPosition = 0; private String mLocation; private ListView mListView; // For the forecast view we're showing only a small subset of the stored data. // Specify the columns we need. private static final String[] FORECAST_COLUMNS = { // In this case the id needs to be fully qualified with a table name, since // the content provider joins the location & weather tables in the background // (both have an _id column) // On the one hand, that's annoying. On the other, you can search the weather table // using the location set by the user, which is only in the Location table. // So the convenience is worth it. WeatherContract.WeatherEntry.TABLE_NAME + "." + WeatherContract.WeatherEntry._ID, WeatherContract.WeatherEntry.COLUMN_DATETEXT, WeatherContract.WeatherEntry.COLUMN_SHORT_DESC, WeatherContract.WeatherEntry.COLUMN_MAX_TEMP, WeatherContract.WeatherEntry.COLUMN_MIN_TEMP, WeatherContract.LocationEntry.COLUMN_LOCATION_SETTING, WeatherContract.WeatherEntry.COLUMN_WEATHER_ID, WeatherContract.LocationEntry.COLUMN_COORD_LAT, WeatherContract.LocationEntry.COLUMN_COORD_LONG }; // These indices are tied to FORECAST_COLUMNS. If FORECAST_COLUMNS changes, these // must change. public static final int COL_ID = 0; public static final int COL_WEATHER_DATE = 1; public static final int COL_WEATHER_DESC = 2; public static final int COL_WEATHER_MAX_TEMP = 3; public static final int COL_WEATHER_MIN_TEMP = 4; public static final int COL_LOCATION_SETTING = 5; public static final int COL_WEATHER_ID = 6; public static final int COL_COORD_LAT = 7; public static final int COL_COORD_LONG = 8; @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); if (!getLoaderManager().hasRunningLoaders() && getLoaderManager().getLoader(FORECAST_LOADER) == null) getLoaderManager().initLoader(FORECAST_LOADER, null, this); else getLoaderManager().restartLoader(FORECAST_LOADER, null, this); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, final Bundle savedInstanceState) { setHasOptionsMenu(true); mRootView = inflater.inflate(R.layout.fragment_main, container, false); if (savedInstanceState != null && savedInstanceState.containsKey(LIST_POSITION)) mPosition = savedInstanceState.getInt(LIST_POSITION); mAdapter = new ForecastAdapter(getActivity(), null, 0); mAdapter.setUseTodayLayout(mUseTodaylayout); mListView = (ListView) mRootView.findViewById(R.id.listview_forecast); mListView.setAdapter(mAdapter); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { CursorAdapter adapter = (CursorAdapter) parent.getAdapter(); Cursor cursor = adapter.getCursor(); if (cursor != null && cursor.moveToPosition(position)) { String date = cursor.getString(ForecastFragment.COL_WEATHER_DATE); IForecastFragmentHost callback = (IForecastFragmentHost) getActivity(); callback.onItemSelected(date); } mPosition = position; } }); return mRootView; } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { // Inflate the menu; this adds items to the action bar if it is present. inflater.inflate(R.menu.main, menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_view_location) { viewLocationOnMap(); return true; } if (id == R.id.action_settings) { startActivity(new Intent(getActivity(), SettingsActivity.class)); return true; } return super.onOptionsItemSelected(item); } private void viewLocationOnMap() { String uri; if (mAdapter != null && mAdapter.getCursor() != null) { Cursor cursor = mAdapter.getCursor(); cursor.moveToFirst(); double latitude = cursor.getDouble(COL_COORD_LAT); double longitude = cursor.getDouble(COL_COORD_LONG); uri = String.format(Locale.ENGLISH, "geo:%f,%f", latitude, longitude); } else { SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity()); String location = sharedPreferences.getString(getString(R.string.pref_location_key), getString(R.string.pref_location_default)); uri = String.format(Locale.ENGLISH, "geo:0,0?q=%s", location); } Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri)); if (intent.resolveActivity(getActivity().getPackageManager()) != null) { startActivity(intent); } else { Log.d(LOG_TAG, "Couldn't call " + uri); } } @Override public void onSaveInstanceState(Bundle outState) { if (mPosition != ListView.INVALID_POSITION) { outState.putInt(LIST_POSITION, mPosition); } super.onSaveInstanceState(outState); } @Override public void onResume() { super.onResume(); if (mLocation != null && !Utility.getPreferredLocation(getActivity()).equals(mLocation)) { getLoaderManager().restartLoader(FORECAST_LOADER, null, this); } } private void updateWeather() { WeatherSyncAdapter.syncImmediately(getActivity()); } public void setUseTodayLayout(boolean useTodayLayout) { mUseTodaylayout = useTodayLayout; if (mAdapter != null) mAdapter.setUseTodayLayout(mUseTodaylayout); } @Override public Loader<Cursor> onCreateLoader(int i, Bundle bundle) { // Only return data after today String startDate = WeatherContract.getDbDateString(new Date()); // Sort ascending by date String sort = WeatherContract.WeatherEntry.COLUMN_DATETEXT + " ASC"; mLocation = Utility.getPreferredLocation(getActivity()); updateWeather(); Uri weatherForLocationUri = WeatherContract.WeatherEntry.buildWeatherLocationWithStartDate(mLocation, startDate); Log.d(LOG_TAG, "Uri: " + weatherForLocationUri.toString()); return new CursorLoader( getActivity(), weatherForLocationUri, FORECAST_COLUMNS, null, null, sort ); } @Override public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) { mAdapter.swapCursor(cursor); if (mPosition != ListView.INVALID_POSITION && ((IForecastFragmentHost) getActivity()).isTwoPane()) { mListView.postDelayed(new Runnable() { @Override public void run() { mListView.smoothScrollToPosition(mPosition); mListView.setSelection(mPosition); mListView.performItemClick(mListView.getChildAt(0), mPosition, mPosition); } }, 100); } if (!mLocation.equals(Utility.getPreferredLocation(getActivity()))) { getLoaderManager().restartLoader(FORECAST_LOADER, null, this); } } @Override public void onLoaderReset(Loader<Cursor> cursorLoader) { mAdapter.swapCursor(null); } }