Question

我有一个TextView来更新窗口小部件中的时间和日期，并尝试使用Timer每秒更新一次，但它不起作用：

public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    final int N = appWidgetIds.length;

    for (int i = 0; i < N; i++) {
        int appWidgetId = appWidgetIds[i];

        Intent clockIntent = new Intent(context, DeskClock.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, clockIntent, 0);

        final RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.digitalclock);
        views.setOnClickPendingIntent(R.id.rl, pendingIntent);

        Timer timer = new Timer();
        timer.schedule(new TimerTask() {

            @Override
            public void run() {
                java.util.Date noteTS = Calendar.getInstance().getTime();
                String time = "kk:mm";
                String date = "dd MMMMM yyyy";

                views.setTextViewText(R.id.tvTime, DateFormat.format(time, noteTS));
                views.setTextViewText(R.id.tvDate, DateFormat.format(date, noteTS));
            }
        }, 0, 1000);// Update text every second

        appWidgetManager.updateAppWidget(appWidgetId, views);
    }
}

我在某个地方出错了所以如果有人知道，请告诉我，并给我正确的方法来做到这一点。提前致谢

Answer 1

尝试更新run（）

中的app小部件

        @Override
        public void run() {
            java.util.Date noteTS = Calendar.getInstance().getTime();
            String time = "kk:mm";
            String date = "dd MMMMM yyyy";

            views.setTextViewText(R.id.tvTime, DateFormat.format(time, noteTS));
            views.setTextViewText(R.id.tvDate, DateFormat.format(date, noteTS));
            appWidgetManager.updateAppWidget(appWidgetId, views);
        }
    }, 0, 1000);// Update text every second

尝试这样对我有用，我想在我使用的另一个应用程序中有相同的问题，而不是计时器和timertask使用：

Handler mHandler;
Runnable continuousRunnable = new Runnable() {
        public void run() {
            java.util.Date noteTS = Calendar.getInstance().getTime();
            String time = "kk:mm";
            String date = "dd MMMMM yyyy";

            views.setTextViewText(R.id.tvTime, DateFormat.format(time, noteTS));
            views.setTextViewText(R.id.tvDate, DateFormat.format(date, noteTS));
            appWidgetManager.updateAppWidget(appWidgetId, views);

            mHandler.postDelayed(this, 1000);
        }
    };
  mHandler.post(continuousRunnable);

使用计时器时，Widget TextView不会更新

1 个答案: