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【Js】 Android获取当前位置的经纬度数据

作者:筱雨 / 发布于2016/9/21/ 922

Android手机获取当前位置的方式：GPS定位，WIFI定位，基站定位，当前Demo使用GPS卫星定位，在LocationTool中返回Location、LocationManager两者对象，通过Location提供的getLatitude()、getLongitude()读取经纬度数据，同时添加位置改变监听器MyLocationListener

package cn.teachcourse.utils; 
  
import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.location.Criteria; 
import android.location.Location; 
import android.location.LocationListener; 
import android.location.LocationManager; 
import android.os.Bundle; 
import android.provider.Settings; 
import android.widget.Toast; 
  
/* 
 @author postmaster@teachcourse.cn 
 @date 创建于：2016-1-22 
 */
public class LocationTool { 
  public Location getLocation() { 
    return mLocation; 
  } 
  
  public void setLocation(Location location) { 
    this.mLocation = location; 
  } 
  
  private Context context; 
  private Location mLocation; 
  private LocationManager mLocationManager; 
  
  public LocationTool(Context context) { 
    super(); 
  
    mLocationManager = (LocationManager) context 
        .getSystemService(Context.LOCATION_SERVICE); 
    mLocation = mLocationManager.getLastKnownLocation(getProvider()); 
      
    mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 
        2000, 10, new MyLocationListener(this)); 
  } 
  
  // 获取Location Provider 
  private String getProvider() { 
    // 构建位置查询条件 
    Criteria criteria = new Criteria(); 
    // 查询精度：高 
    criteria.setAccuracy(Criteria.ACCURACY_FINE); 
    // 是否查询海拨：否 
    criteria.setAltitudeRequired(false); 
    // 是否查询方位角 : 否 
    criteria.setBearingRequired(false); 
    // 是否允许付费：是 
    criteria.setCostAllowed(true); 
    // 电量要求：低 
    criteria.setPowerRequirement(Criteria.POWER_LOW); 
    // 返回最合适的符合条件的provider，第2个参数为true说明 , 如果只有一个provider是有效的,则返回当前provider 
    return mLocationManager.getBestProvider(criteria, true); 
  } 
  
  
  
  public LocationManager getLocationManager() { 
  
    return mLocationManager; 
  } 
  
  private LocationListener mLocationListener = new LocationListener() { 
  
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) { 
      // TODO Auto-generated method stub 
  
    } 
  
    @Override
    public void onProviderEnabled(String provider) { 
      Location l = mLocationManager.getLastKnownLocation(provider); 
        
      if (l != null) { 
        mLocation = l; 
      } 
        
    } 
  
    @Override
    public void onProviderDisabled(String provider) { 
      mLocation = null; 
    } 
  
    @Override
    public void onLocationChanged(Location location) { 
      if (location != null) { 
        mLocation = location; 
      } 
  
    } 
  }; 
  
  public void closeLocation() { 
    if (mLocationManager != null) { 
      if (mLocationManager != null) { 
        mLocationManager.removeUpdates(mLocationListener); 
        mLocationListener = null; 
      } 
      mLocationManager = null; 
    } 
  } 
}

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　经纬度数据　

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