android开发分享Android实现计步器功能

  <?xml version="1.0" encoding="utf-8"?>  <linearlayout xmlns:android="https://schemas.android.com/apk/res/android"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:orientation="vertical" >      <textview    android:id="@+id/tv_step"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:padding="5dp"    android:text="设备检测到您当前走了0步，总计数为0步"    android:textcolor="@color/black"    android:textsize="17sp" />  </linearlayout>

  public class mainactivity extends baseactivity    implements sensoreventlistener {      private textview tv_step;   private sensormanager msensormgr;// 声明一个传感管理器对象   private int mstep;   private int mstepcount;      @override   protected mvcbasemodel getmodelimp() {    return null;   }      @override   protected int getcontentlayoutid() {    return r.layout.activity_main;   }      @override   protected void initwidget() {    tv_step = findviewbyid(r.id.tv_step);    // 从系统服务中获取传感管理器对象    msensormgr = (sensormanager) getsystemservice(context.sensor_service);   }      @override   protected void onpause() {    super.onpause();    // 注销当前活动的传感监听器    msensormgr.unregisterlistener(this);   }      @override   protected void onresume() {    super.onresume();    //注册步行检测    msensormgr.registerlistener(this,      msensormgr.getdefaultsensor(sensor.type_step_detector),      sensormanager.sensor_delay_normal);    //注册步行计数    msensormgr.registerlistener(this,      msensormgr.getdefaultsensor(sensor.type_step_detector),      sensormanager.sensor_delay_normal);   }      @override   public void onsensorchanged(sensorevent event) {    if (event.sensor.gettype() == sensor.type_step_detector){//步行检测事件     if (event.values[0] == 1.0f){      mstep++;     }    }else if (event.sensor.gettype() == sensor.type_step_counter){//计步器事件     mstepcount = (int) event.values[0];    }    string desc = string.format("设备检测到您当前走了%d步，总计数为%d步",mstep,mstepcount);    tv_step.settext(desc);   }      //当传感器精度改变时回调该方法，一般无需处理   public void onaccuracychanged(sensor sensor, int accuracy) {}  }