
我有一个关于CountDownTimer的问题.我必须创建一个应用程序,允许用户每次单击按钮时将时间时间增加1.然后在按钮停止点击后等待三秒钟,然后开始倒计时.
我粘贴了下面的代码.
我的问题是:我似乎无法使数字的增量正常工作,但似乎在我停止递增数字后(onStop())它直接转到(onFinish()).而不是去OnTick()并将数字每秒减少1.我已经尝试了很多方法来解决这个问题,但一直困扰着.
任何人都可以带领我做正确的方向吗?任何帮助,将不胜感激.感谢大伙们!
@SuppressWarnings("unused") public class MainActivity extends Activity { public int countdown; button stoptime; public TextVIEw timedisplay; public Timer wavetimer; private long millisInFuture; private long countDownInterval; private long onclicktime; private long finished; @OverrIDe public voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentVIEw(R.layout.activity_main); countdown = 01; stoptime = (button) findVIEwByID(R.ID.button2); stoptime.setText("Stop Timer"); timedisplay = (TextVIEw) findVIEwByID(R.ID.mycounter); timedisplay.setText("0"); wavetimer = new Timer (millisInFuture, 1000); finished = 0; stoptime.setonClickListener(new OnClickListener(){ public voID onClick(VIEw arg0) { wavetimer.onStop(); //try{ // Thread.sleep(3000); // wavetimer.start(); //} catch (InterruptedException e) { // e.printstacktrace(); // } //wavetimer.onTick(millisInFuture); } }); } @OverrIDe public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } public class Timer extends CountDownTimer { public long millisInFuture; private long countDownInterval = 1000; private long currentelapsed; private long methodlimit; private long lapsedperiod; public Timer(long millisInFuture, long countDownInterval) { super(millisInFuture, countDownInterval); } public voID onFinish() { if (millisInFuture == 0){ timedisplay.setText("Countdown Finished"); } else { timedisplay.setText("error"); } } public voID onStop() { wavetimer.cancel(); millisInFuture = millisInFuture + 1; timedisplay.setText("Time left: " + millisInFuture); } public voID onTick(long millisUntilFinished) { millisInFuture = (millisInFuture - 1); timedisplay.setText("Time left: " + millisInFuture / 1000); } } }解决方法:
将其添加到您的代码中;
wavetimer.start();总结
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