java - 我想在textView(实时)中显示线程的计时器

Question

我在线程中有一个计时器，在移动到新 Activity 之前等待 20 秒，我正在寻找的是显示在此期间 textView 中减少或增加的时间。这是我的代码:

Thread timer = new Thread() {
        public void run() {
            try {
                sleep(ie);
            } catch (InterruptedException e) {
                e.printStackTrace();
            } finally {

                Intent i = new Intent(Activity.this, Menu.class);
                if (ie == 20000) {
                    startActivity(i);
                    overridePendingTransition(R.anim.pushin, R.anim.pushout);
                }
            }
        }
    };

    timer.start();

感谢您的帮助

Answer 1

尝试使用 CountDownTimer 而不是线程:

            CountDownTimer count = new CountDownTimer(20000, 1000)
            {

                int counter = 20;

                @Override
                public void onTick(long millisUntilFinished)
                {
                    // TODO Auto-generated method stub
                    counter--;
                    textView.setText(String.valueOf(counter));

                }

                @Override
                public void onFinish()
                {

            startActivity(i);
            overridePendingTransition(R.anim.pushin, R.anim.pushout);
                }
            };

            count.start();