根本没有调用 RemoteViewsFactory 中的任何方法

Question

我已尽力按照developer.android.com 上的指示进行操作，但似乎我在某个地方出现了一个我无法弄清楚的愚蠢错误。

在连续记录之后，我意识到没有任何方法在我的 RemoteViewsFactory 实现中运行，它（尝试）使用来自内容提供程序光标的数据在小部件中设置 ListView。

RemoteViewsFactory：

private Context context;
private int appWidgetId;
private Cursor cursor;

public FootballScoreFactory(Context context, Intent intent){
    this.context = context;
    appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);

}

@Override
public void onDataSetChanged() {

    if(cursor != null){
        cursor.close();
    }

    String[] date = new String[1];
    Date filterDate = new Date(System.currentTimeMillis());
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
    date[0] = format.format(filterDate);
    try {
        cursor = context.getContentResolver().query(
                Uri.parse([content uri here, tested, returns the data]),
                null,
                null,
                date,
                null
        );
    } catch (Exception e){
        e.printStackTrace();
    }

}
@Override
public RemoteViews getViewAt(int position) {

    String leagueName, home, away, homeGoal, awayGoal;
    leagueName = home = away = homeGoal = awayGoal = "";

    if(cursor.moveToPosition(position)){
        leagueName = cursor.getString(cursor.getColumnIndex(DatabaseContract.scores_table.LEAGUE_COL));
        home = cursor.getString(cursor.getColumnIndex(DatabaseContract.scores_table.HOME_COL));
        away = cursor.getString(cursor.getColumnIndex(DatabaseContract.scores_table.AWAY_COL));
        homeGoal = String.valueOf(cursor.getInt(cursor.getColumnIndex(DatabaseContract.scores_table.HOME_GOALS_COL)));
        awayGoal = String.valueOf(cursor.getInt(cursor.getColumnIndex(DatabaseContract.scores_table.AWAY_GOALS_COL)));
    }

    RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget_list_item);
    rv.setTextViewText(R.id.league_name, leagueName);
    rv.setTextViewText(R.id.home, home);
    rv.setTextViewText(R.id.away, away);
    rv.setTextViewText(R.id.home_score, homeGoal.contentEquals("-1")? "-" : homeGoal);
    rv.setTextViewText(R.id.away_score, awayGoal.contentEquals("-1")? "-" : awayGoal);
    return rv;
}

RemoteViewsService：

@Override
public RemoteViewsFactory onGetViewFactory(Intent intent) {
    return new FootballScoreFactory(getApplicationContext(), intent);
}

AppWidgetProvider：

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    // There may be multiple widgets active, so update all of them
    for (int appWidgetId : appWidgetIds) {
        Intent intent = new Intent(context, FootballScoreService.class);
        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));

        RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.football_score);
        rv.setRemoteAdapter(appWidgetId, R.id.widget_list_view, intent);
        rv.setEmptyView(R.id.widget_list_view, R.id.empty_view);

        appWidgetManager.updateAppWidget(appWidgetId, rv);
    }

    super.onUpdate(context, appWidgetManager, appWidgetIds);

}

任何关于我需要做什么以确保更新视图的帮助都会很棒。如果有帮助，rv.setEmptyView(...); 似乎一直在工作。

我最心碎的是当我认为我没有在应用程序清单文件中绑定视图但看起来我做了。 :(

<service android:name=".FootballScoreService"
        android:permission="android.permission.BIND_REMOTEVIEWS" />

Answer 1

所以，事实证明我发现了自己的问题。这就像我的 RemoteViewsFactory 没有为 getViewTypeCount() 返回正确的值一样简单。我一开始把它放在0。当我将其更改为 1 时，它起作用了。

继续，笑我。我做到了。希望这能在某些时候帮助像我这样的可怜的 sole 灵魂。

如果我再次偶然发现这一点，我不会感到惊讶，哈哈。