Android - 带有光标适配器的ListView格式时间戳

Question

我正在使用SimpleCursorAdapter来填充Android ListView,并且想知道我应该如何获取从数据库获得的所有时间戳,每个时间戳在"DATE_DATE"到人类可读日期,也许使用SimpleDateFormat？

Cursor programDateCursor = mDbAdapter.loadProgramDates();

startManagingCursor(programDateCursor);

String[] from = new String[]{ "DATE_DATE" };

int[] to = new int[]{ R.id.text1 };

SimpleCursorAdapter programDates = 
             new SimpleCursorAdapter(this, R.layout.program_date,
                                      programDateCursor, from, to);

setListAdapter(programDates);

我没有做过很多Java工作,所以有更好的方法/任何方式来做到这一点吗？除了事先将预先格式化的日期存储在数据库中,这是什么？

Answer 1

您将不得不创建自定义CursorAdapter以便能够设置时间戳的格式.

public class MyAdapter extends CursorAdapter {
    private final LayoutInflater mInflater;

    public MyAdapter(Context context, Cursor cursor) {
        super(context, cursor, false);
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
         return mInflater.inflate(R.layout.program_date, parent, false);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        long time = cursor.getLong(cursor.getColumnIndex("DATE_DATE")) * 1000L;

        Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(time);

        String format = "M/dd h:mm a";
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        String dateString = sdf.format(cal.getTime());

        ((TextView) view.findViewById(R.id.text1)).setText(dateString);
    }
}

该列表来改变String format自己的喜好是在这里.

然后你用这个适配器

Cursor programDateCursor = mDbAdapter.loadProgramDates();
startManagingCursor(programDateCursor);

setListAdapter(new MyAdapter(this, programDateCursor));