Home | History | Annotate | Download | only in dialog 
      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.dialog;
     18 
     19 import android.app.AlertDialog;
     20 import android.app.Dialog;
     21 import android.app.LoaderManager;
     22 import android.content.CursorLoader;
     23 import android.content.Loader;
     24 import android.database.Cursor;
     25 import android.media.tv.TvContract;
     26 import android.os.Bundle;
     27 import android.text.format.DateUtils;
     28 import android.view.View;
     29 import android.widget.ListView;
     30 import android.widget.SimpleCursorAdapter;
     31 import android.widget.TextView;
     32 
     33 import com.android.tv.MainActivity;
     34 import com.android.tv.R;
     35 import com.android.tv.data.Channel;
     36 import com.android.tv.data.ChannelDataManager;
     37 
     38 /**
     39  * Displays the watch history
     40  */
     41 public class RecentlyWatchedDialogFragment extends SafeDismissDialogFragment implements
     42         LoaderManager.LoaderCallbacks<Cursor> {
     43     public static final String DIALOG_TAG = RecentlyWatchedDialogFragment.class.getSimpleName();
     44 
     45     private static final String EMPTY_STRING = "";
     46     private static final String TRACKER_LABEL = "Recently watched history";
     47 
     48     private SimpleCursorAdapter mAdapter;
     49 
     50     @Override
     51     public Dialog onCreateDialog(Bundle savedInstanceState) {
     52         getLoaderManager().initLoader(0, null, this);
     53 
     54         final ChannelDataManager dataChannelManager =
     55                 ((MainActivity) getActivity()).getChannelDataManager();
     56 
     57         String[] from = {
     58                 TvContract.WatchedPrograms._ID,
     59                 TvContract.WatchedPrograms.COLUMN_CHANNEL_ID,
     60                 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS,
     61                 TvContract.WatchedPrograms.COLUMN_TITLE };
     62         int[] to = {
     63                 R.id.watched_program_id,
     64                 R.id.watched_program_channel_id,
     65                 R.id.watched_program_watch_time,
     66                 R.id.watched_program_title};
     67         mAdapter = new SimpleCursorAdapter(getActivity(), R.layout.list_item_watched_program, null,
     68                 from, to, 0);
     69         mAdapter.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
     70             @Override
     71             public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
     72                 String name = cursor.getColumnName(columnIndex);
     73                 if (TvContract.WatchedPrograms.COLUMN_CHANNEL_ID.equals(name)) {
     74                     long channelId = cursor.getLong(columnIndex);
     75                     ((TextView) view).setText(String.valueOf(channelId));
     76                     // Update display number
     77                     String displayNumber;
     78                     Channel channel = dataChannelManager.getChannel(channelId);
     79                     if (channel == null) {
     80                         displayNumber = EMPTY_STRING;
     81                     } else {
     82                         displayNumber = channel.getDisplayNumber();
     83                     }
     84                     TextView displayNumberView = ((TextView) ((View) view.getParent())
     85                             .findViewById(R.id.watched_program_channel_display_number));
     86                     displayNumberView.setText(displayNumber);
     87                     return true;
     88                 } else if (TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS.equals(
     89                         name)) {
     90                     long time = cursor.getLong(columnIndex);
     91                     CharSequence timeString = DateUtils.getRelativeTimeSpanString(time,
     92                             System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS);
     93                     ((TextView) view).setText(String.valueOf(timeString));
     94                     return true;
     95                 }
     96                 return false;
     97             }
     98         });
     99 
    100         ListView listView = new ListView(getActivity());
    101         listView.setAdapter(mAdapter);
    102 
    103         AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    104         return builder.setTitle(R.string.recently_watched).setView(listView).create();
    105     }
    106 
    107     @Override
    108     public void onDestroy() {
    109         super.onDestroy();
    110         // If we have an adapter we should close its cursor, which we do by assigning a null cursor.
    111         if (mAdapter != null) {
    112             mAdapter.changeCursor(null);
    113         }
    114     }
    115 
    116     @Override
    117     public String getTrackerLabel() {
    118         return TRACKER_LABEL;
    119     }
    120 
    121     @Override
    122     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    123         String[] projection = {
    124                 TvContract.WatchedPrograms._ID,
    125                 TvContract.WatchedPrograms.COLUMN_CHANNEL_ID,
    126                 TvContract.WatchedPrograms.COLUMN_WATCH_START_TIME_UTC_MILLIS,
    127                 TvContract.WatchedPrograms.COLUMN_TITLE };
    128         return new CursorLoader(getActivity(), TvContract.WatchedPrograms.CONTENT_URI, projection,
    129                 null, null, TvContract.WatchedPrograms._ID + " DESC");
    130     }
    131 
    132     @Override
    133     public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    134         mAdapter.changeCursor(cursor);
    135     }
    136 
    137     @Override
    138     public void onLoaderReset(Loader<Cursor> cursor) {
    139         mAdapter.changeCursor(null);
    140     }
    141 }
    142