sleep function not working

Question

I want to show 1 to 100 in a changeable text. I like to use sleep()function so that it looks like that it is increasing form 1 to 100. my code is

for(int i= 0;i<100;i++) {
    scorelevel.setText(String.valueOf(i));
    try{
        Thread.sleep(1000);
    }catch (InterruptedException e) {
        e.printStackTrace();
    }
}

but it did not show properly. Any help or suggestion is appreciated.

use Asynctask .... for you knowledge try with a larger time like 4 sec 4000 in sleep ...1 sec loos to less.. — Dheeresh Singh, Jun 25 '12 at 11:10
when the UI thread sleeps, the UI elements do not respond to touch events, e.g. the user will think that your app freezes. And you don't want that. — overbet13, Jun 25 '12 at 11:13

score 5 · Accepted Answer · answered Jun 25 '12 at 11:07

5

Don't block UI thread, use AsyncTask instead

answered Jun 25 '12 at 11:07

Zang MingJie

5,164
1
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27

also guessing you are calling that in onStart or onCreate methods if so then it isn't designed to work. – MikeIsrael Jun 25 '12 at 11:08
Thank you user956030. but how can i do that? – Humayun Kabir Jun 25 '12 at 11:10

score 0 · Answer 2 · answered Jun 25 '12 at 11:12

0

Use Timer and TimerTask to perform any time based task.

answered Jun 25 '12 at 11:12

Arun George

18,352
4
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28

score 0 · Answer 3 · answered Jun 25 '12 at 11:13

You can start counter using runOnUiThread to update textView as:

private boolean mClockRunning=false;
private int millisUntilFinished=0;
public void myThread(){
            Thread th=new Thread(){
             @Override
             public void run(){
              try
              {
               while(mClockRunning)
               {
               Thread.sleep(1000L);// set time here for refresh time in textview
               YourCurrentActivity.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                 // TODO Auto-generated method stub
                     if(mClockRunning)
                     {
                     if(millisUntilFinished==100)
               {
               mClockRunning=false;
               millisUntilFinished=0;
                }
                else
                {
               millisUntilFinished++;
               scorelevel.setText(String.valueOf(millisUntilFinished));//update textview here

               }
             }

            };
          }
              }catch (InterruptedException e) {
            // TODO: handle exception
             }
             }
            };
            th.start();
           }

score 0 · Answer 4 · answered Jun 25 '12 at 11:16

0

You could use a TimerTask (link), too.

answered Jun 25 '12 at 11:16

overbet13

1,654
1
20
36

sleep function not working

4 Answers4