0
我正在嘗試使倒數計時器顯示剩餘的特定日期的總天數，小時數，分鐘數和秒數。倒數計時器到特定日期
這就是我現在創建的。
protected override void OnCreate (Bundle bundle)
{
base.OnCreate (bundle);
SetContentView (Resource.Layout.Main);
txtDays = FindViewById<TextView> (Resource.Id.txtDays);
txtHours = FindViewById<TextView> (Resource.Id.txtHours);
txtMins = FindViewById<TextView> (Resource.Id.txtMins);
txtSec = FindViewById<TextView> (Resource.Id.txtSec);
DateTime enteredDate = new DateTime(2013, 7, 25, 12 ,30 ,00);
DateTime todaysDateTime = DateTime.Now;
DateTime formattedDate = todaysDateTime.AddHours (2);
TimeSpan span = enteredDate.Subtract(formattedDate);
double totalDays = span.TotalDays;
double totalHours = span.TotalHours;
double totalMins = span.TotalMinutes;
double totalSec = span.TotalSeconds;
new Thread(new ThreadStart(() =>
{
RunOnUiThread(() =>
{
Console.WriteLine ("Days: " + String.Format("{0:0}", Math.Truncate(totalDays)));
Console.WriteLine ("Hours: " + String.Format("{0:0}", Math.Truncate(totalHours)));
Console.WriteLine ("Minutes: " + String.Format("{0:0}", Math.Truncate(totalMins)));
Console.WriteLine ("Seconds: " + String.Format("{0:0}", Math.Truncate(totalSec)));
txtDays.Text = String.Format ("{0:0}", Math.Truncate (totalDays));
txtHours.Text = String.Format ("{0:0}", Math.Truncate (totalHours));
txtMins.Text = String.Format ("{0:0}", Math.Truncate (totalMins));
txtSec.Text = String.Format ("{0:0}", Math.Truncate (totalSec));
});
})).Start();
}
如何使用Android C＃自動每秒更新TextViews？
編輯2：
我已經使用定時器，它的計數爲Console.WriteLine，但TextViews顯示任何他們不更新......有人的想法如何更新TextViews每一秒？
timer = 0;
new Thread(new ThreadStart(() =>
{
Thread.Sleep (1000);
RunOnUiThread(() =>
{
tmr.Elapsed += new System.Timers.ElapsedEventHandler(tmr_Elapsed);
tmr.Start();
while (timer < totalSec) ;
tmr.Stop();
});
})).Start();
void tmr_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
txtDays = FindViewById<TextView> (Resource.Id.txtDays);
txtHours = FindViewById<TextView> (Resource.Id.txtHours);
txtMins = FindViewById<TextView> (Resource.Id.txtMins);
txtSec = FindViewById<TextView> (Resource.Id.txtSec);
DateTime enteredDate = new DateTime(2013, 7, 25, 12 ,30 ,00);
DateTime todaysDateTime = DateTime.Now;
DateTime formattedDate = todaysDateTime.AddHours (2);
TimeSpan span = enteredDate.Subtract(formattedDate);
totalDays = span.TotalDays;
totalHours = span.TotalHours;
totalMins = span.TotalMinutes;
totalSec = span.TotalSeconds;
Console.WriteLine ("Days: " + String.Format("{0:0}", Math.Truncate(totalDays)));
Console.WriteLine ("Hours: " + String.Format("{0:0}", Math.Truncate(totalHours)));
Console.WriteLine ("Minutes: " + String.Format("{0:0}", Math.Truncate(totalMins)));
Console.WriteLine ("Seconds: " + String.Format("{0:0}", Math.Truncate(totalSec)));
txtDays.Text = String.Format ("{0:0}", Math.Truncate (totalDays));
txtHours.Text = String.Format ("{0:0}", Math.Truncate (totalHours));
txtMins.Text = String.Format ("{0:0}", Math.Truncate (totalMins));
txtSec.Text = String.Format ("{0:0}", Math.Truncate (totalSec));
}