本文主要是介绍写了一个可以记录路线的计步器，好像有内存泄露问题，求指点，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
Timer 和 Handler的相关代码如下：
Handler handler = new Handler(){@Overridepublic void handleMessage(Message msg){super.handleMessage(msg);if(msg.what == 1){countDistance();countStep();circleBar.setProgress(total_step, target_distance);if(flag){circleBar.startCustomAnimation();flag = false;}if (timer != 0 && distance != 0.0){calories = weight * total_step* step_length * 1.036 * 0.001;calory_consume = calories;} else {calories = 0.0;}if(total_step == target_distance){Intent service = new Intent(getActivity(),StepCounterService.class);getActivity().stopService(service);
}circleBar.setMax(target_distance);
//更新uitv_distance.setText(formatDouble(distance));tv_calory.setText(formatDouble(calories));tv_sugar.setText(formatDouble(calories / 4.1));tv_time.setText(getFormatTime(timer));//定位相关if(isStartLoacation){//防止信号不好的时候p1和p2为空，异常if(p1 != null && p2 != null){pointstwo.add(p1);pointstwo.add(p2);OverlayOptions ooPolyline = new PolylineOptions().width(4).color(0xAAFF0000).points(pointstwo);mOverlay2 = mBaiduMap.addOverlay(ooPolyline);p1 = p2;mLocClient.requestLocation();}else{mLocClient.requestLocation();}}}}};
public void startTimer() {if (mtimer == null) {mtimer = new Timer();}if (mtask == null) {mtask = new TimerTask() {@Overridepublic void run() {// TODO Auto-generated method stub
Message message = new Message();message.what = 1;handler.sendMessage(message);if (StepCounterService.flag) {if(startTimer != System.currentTimeMillis()){timer = tempTimer + System.currentTimeMillis() - startTimer;}}}};}if (mtimer != null && mtask != null) {mtimer.schedule(mtask, 0, 200);}}
public void pauseTimer() {if (mtimer != null) {mtimer.cancel();mtimer = null;}if (mtask != null) {mtask.cancel();mtask = null;}}
程序刚开始运行一切正常，一段时间以后，会变得很卡，点击事件响应很慢，看了看内存占用偏高，是内存泄露问题吗，求指点。
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