Question

我在Android中遇到DATABASE问题，因为我的DATABASE已经过了2个月之后，我不能用查询做出这样的事情：

 public LiveTvProgram currentPlayedProgram(int channelID) {
    LiveTvProgram program = new LiveTvProgram();
    long currentTime = System.currentTimeMillis();
    String selectQuery = " SELECT * FROM " + TABLE_PROGRAMS + " WHERE " +
            TvContract.Programs.COLUMN_START_TIME_UTC_MILLIS + " < " + currentTime +
            " AND " + TvContract.Programs.COLUMN_END_TIME_UTC_MILLIS + " > " + currentTime + " AND "
            + TvContract.Programs.COLUMN_CHANNEL_ID + " = " + channelID;
    Cursor cursor = myDataBase.rawQuery(selectQuery, null);
    if(cursor != null && cursor.moveToFirst()){
    program = LiveTvProgram.fromCursor(timeDifference, cursor);
        cursor.close();
}

    return program;
}

所以，当我这样做的时候，我刚刚在今天00:00获得了记录，而且就像是这样。它不是必须这样做，但我想问你，是否有可能从数据库中获取时间并做到这一点？

Answer 1

是的，但您必须以适当的格式存储。

contentValues=null;
contentValues=new ContentValues();
cal=null;
cal=Calendar.getInstance();
currentDay=0;
currentDay=cal.get(Calendar.DAY_OF_MONTH);
cal.set(Calendar.DAY_OF_MONTH, currentDay+Pl+1);
contentValues.put("callfromdate",cal.getTime().toString());
contentValues.put("type","Dll");
contentValues.put("days",String.valueOf(Dl));
cal=null;
cal=Calendar.getInstance();
currentDay=0;
currentDay=cal.get(Calendar.DAY_OF_MONTH);
cal.set(Calendar.DAY_OF_MONTH, currentDay+Pl+Dl);
contentValues.put("calltodate",cal.getTime().toString());

它可以从数据库获取getDateTime吗？

1 个答案: