Android定时器Timer


private Timer mTimer;

private Task mTask;

private int mTimes = 0;

//初始化定时器

private void initTimer() {

            mTimer = new Timer();

            mTask = new TimerTask() {

                @Override

                public void run() {

                    // TODO Auto-generated method stub

                    mTimes++;

                    if (mTimes >= TIMEOUT) {

                        if (mTimer != null) {

                            mTimer.cancel();

                        }

                       //执行逻辑，此处是向Handler发送消息更新

                        mHandler.sendEmptyMessage(2);

                    } else {

                       //执行逻辑，此处是向Handler发送消息更新

                        mHandler.sendEmptyMessage(1);

                    }

                }

            };

        if(mTimer != null && mTask != null) {

            mTimer.schedule(mTask, 1000, 1000);

        }

    }

activity结束时，并不会主动关了定时器，所以，还需要设置关闭定时器

  private void cancelTimer() {

        if (mTimer != null) {

            mTimer.cancel();

            mTimer = null;

        }

        if (mTask != null) {

            mTask.cancel();

            mTask = null;

        }

        mTimes = 0;

    }