TextView.Text將不會更新屏幕上的視覺更新

Question

public void displayTimeOnScreen() 
    { 
     _timer = new System.Timers.Timer(); 
     _timer.Interval = 1000; 
     _timer.Elapsed += Timer_Elapsed; 
     _timer.Enabled = true; 
     FindViewById<TextView>(Resource.Id.textViewDay).Text = "Test";//This works 
    } 

public void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e) 
    { 
     TextView timeTextView, dateTextView, dayTextView; 

     LinearLayout screen = FindViewById<LinearLayout>(Resource.Id.box); 
     bool portrate = screen.Height > screen.Width; 

     timeTextView = FindViewById<TextView>(Resource.Id.textViewTime); 
     dateTextView = FindViewById<TextView>(Resource.Id.textViewDate); 
     dayTextView = FindViewById<TextView>(Resource.Id.textViewDay); 

     string[] timeData = { "stuff", "things", "test" }; 

     timeTextView.Text = timeData[0]; 
     dateTextView.Text = timeData[1]; 
     dayTextView.Text = timeData[2]; 
     Log.Info("Information", timeTextView.Text);//This will tell me that timeTextView.Text has actually been updated, it just isn't showing on the screen 
    } 
} 

所以我一直在試圖做一個簡單的程序，顯示在Android設備上的時間。我正在使用一個Timers對象來運行應更新時間的代碼。但是，儘管Log告訴我代碼正在運行，並且TextView的文本值正在更新，但這並未顯示在android設備的屏幕上。然而，displayTimeOnScreen()方法確實起作用。

有誰知道這個問題可能是什麼？

Answer 1

您正在尋找的方法是textView.setText()

Answer 2

您需要使用setText()在TextView顯示文本。

timeTextView.setText(timeData[0]); 
dateTextView.setText(timeData[1]); 
dayTextView.setText(timeData[2]);