问答题
super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); timerTextView = (TextView)findViewById(R.id.tvTimer); Timer timer=new Timer(); timer.scheduleAtFixedRate(new TimerTask() { public void run() { //在TextView控件上显示当前时间 Date nowDate = new Date(); timerTextView.setText(nowDate.toLocaleString()); } }, 0, 1000);//每隔一秒种更新显示文本 }}
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