Android实现时间倒计时功能

本文实例为大家分享了Android实现时间倒计时功能展示的具体代码，供大家参考，具体内容如下

效果展示

MainActivity（主页面代码）

public class MainActivity extends Activity {  private RelativeLayout countDown;  // 倒计时  private TextView daysTv, hoursTv, minutesTv, secondsTv;  private long mDay = 10;  private long mHour = 10;  private long mMin = 30;  private long mSecond = 00;// 天 ,小时,分钟,秒  private boolean isRun = true;  private Handler timeHandler = new Handler() {    @Override    public void handleMessage(Message msg) {      super.handleMessage(msg);      if (msg.what==1) {        computeTime();        daysTv.setText(mDay+"");        hoursTv.setText(mHour+"");        minutesTv.setText(mMin+"");        secondsTv.setText(mSecond+"");        if (mDay==0&&mHour==0&&mMin==0&&mSecond==0) {          countDown.setVisibility(View.GoNE);        }      }    }  };  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    countDown = (RelativeLayout) findViewById(R.id.countdown_layout);    daysTv = (TextView) findViewById(R.id.days_tv);    hoursTv = (TextView) findViewById(R.id.hours_tv);    minutesTv = (TextView) findViewById(R.id.minutes_tv);    secondsTv = (TextView) findViewById(R.id.seconds_tv);    startRun();  }    private void startRun() {    new Thread(new Runnable() {      @Override      public void run() {        // TODO Auto-generated method stub        while (isRun) {          try {            Thread.sleep(1000); // sleep 1000ms            Message message = Message.obtain();            message.what = 1;            timeHandler.sendMessage(message);          } catch (Exception e) {            e.printStackTrace();          }        }      }    }).start();  }    private void computeTime() {    mSecond--;    if (mSecond < 0) {      mMin--;      mSecond = 59;      if (mMin < 0) {        mMin = 59;        mHour--;        if (mHour < 0) {          // 倒计时结束          mHour = 23;          mDay--;        }      }    }  }}