Question

所以我正在制作一个从sqlite数据库中提取信息的sorta计时器小部件。当数据库中只有1个条目时，看起来像预期的那样工作，但是当存在多个条目时，小部件似乎在值之间闪烁。例如。 1秒你将看到第一个值，然后下一个第二个将是下一个值等。这是代码，请注意命令fetchDecks（5）查看提醒值，如果它过去当前时间它将不会显示。因此，一旦进入1次，它应该进入第2项。

public class MyWidgetProvider extends AppWidgetProvider {
    private DBadapter mDbHelper;
    Cursor note;
    private long reminder;
    private String title, summary;

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {  
        mDbHelper = new DBadapter(context);
        mDbHelper.open();
        note = mDbHelper.fetchDecks(5);
        note.moveToFirst();
        reminder = note.getLong(
                note.getColumnIndexOrThrow(mDbHelper.KEY_REMINDER));
        title = note.getString(
                note.getColumnIndexOrThrow(mDbHelper.KEY_TITLE));
        summary = note.getString(
                note.getColumnIndexOrThrow(mDbHelper.KEY_SUMMARY));  
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new MyTime(context, appWidgetManager), 1, 1000);
    }

    private class MyTime extends TimerTask {
        RemoteViews remoteViews;
        AppWidgetManager appWidgetManager;
        ComponentName thisWidget;

    public MyTime(Context context, AppWidgetManager appWidgetManager) {
        this.appWidgetManager = appWidgetManager;
        remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
        thisWidget = new ComponentName(context, MyWidgetProvider.class);
    }

    @Override
    public void run() {
        long current = System.currentTimeMillis(); 
        long diff = reminder - current;
        remoteViews.setTextViewText(R.id.TextView01, countDown(diff));
        remoteViews.setTextViewText(R.id.update, title);
        appWidgetManager.updateAppWidget(thisWidget, remoteViews);          
    }

    private String countDown(long result) {
        String mMinutes,mSeconds,mHours, mDays;
        int seconds = (int) (result / 1000) % 60 ;
        if (seconds == 0) {
            mSeconds = "0" + Integer.toString(seconds);
        } 
        else if (seconds <= 9) {
            mSeconds = "0" + Integer.toString(seconds);
        } else {
            mSeconds = Integer.toString(seconds);
        }

        int minutes = (int) ((result / (1000*60)) % 60);
        if (minutes == 0) {
            mMinutes = "0" + Integer.toString(minutes);
        } 
        else if (minutes <= 9) {
            mMinutes = "0" + Integer.toString(minutes);
        } else {
            mMinutes = Integer.toString(minutes);
        }

        int hours   = (int) ((result / (1000*60*60)) % 24);
        if (hours == 0) {
            mHours = "0" + Integer.toString(hours);
        } 
        else if (hours <= 9) {
            mHours = "0" + Integer.toString(hours);
        } else {
            mHours = Integer.toString(hours);
        }

        int days = (int) (result / (1000*60*60*24));
        if (days == 0) {
            mDays = "0" + Integer.toString(days);
        } 
        else if (days <= 9) {
            mDays = "0" + Integer.toString(days);
        } else {
            mDays = Integer.toString(days);
        }
        String tRemaining = mDays + " days | " + mHours + " hours | " + mMinutes + " mins | " + mSeconds + " secs";     
        return tRemaining;
    }

    } 
}

Answer 1

想出来。是xml文件中的问题导致它。

Android小部件更新奇怪w / sqlite db

1 个答案: