android didUpdateHeading(loacation manager)？

Question

是否有与Android相当的didUpdateHeading(来自iOS)？使用它旋转mapview的任何示例代码？

搜索了很多,但无法获得有用的提示.

提前致谢.

编辑:让我expalain我的问题:在IOS,当设备改变其航向,委托对象获取其方法的电话:"didUpdateHeading".在Android中我可以找到"onLocationChanged"来获取坐标,但没有Heading信息.如何在Android中获取标题信息？

Answer 1

package com.exercise.AndroidCompass;

import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.Toast;

public class AndroidCompass extends Activity {

private static SensorManager mySensorManager;
private boolean sersorrunning;
private MyCompassView myCompassView;

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.main);

     myCompassView = (MyCompassView)findViewById(R.id.mycompassview);

     mySensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
     List<Sensor> mySensors = mySensorManager.getSensorList(Sensor.TYPE_ORIENTATION);

     if(mySensors.size() > 0){
      mySensorManager.registerListener(mySensorEventListener, mySensors.get(0), SensorManager.SENSOR_DELAY_NORMAL);
      sersorrunning = true;
      Toast.makeText(this, "Start ORIENTATION Sensor", Toast.LENGTH_LONG).show();

     }
     else{
      Toast.makeText(this, "No ORIENTATION Sensor", Toast.LENGTH_LONG).show();
      sersorrunning = false;
      finish();
     }
 }

 private SensorEventListener mySensorEventListener = new SensorEventListener(){

@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
 // TODO Auto-generated method stub

}

@Override
public void onSensorChanged(SensorEvent event) {
 // TODO Auto-generated method stub
 myCompassView.updateDirection((float)event.values[0]);
}
 };

来源：http ://android-er.blogspot.com/2010/08/simple-compass-sensormanager-and.html

http://developer.android.com/reference/android/hardware/SensorManager.html

应该是你要找的。该OnSensorChanged方法应该提供相同的功能。(float)event.values[0]是你的标题。

只需阅读您的赏金文本即可。根据我研究过的所有内容以及我的一般经验，这是唯一的方法。不过，我提供的示例将通过复制和粘贴相当快地为您提供所需的内容。