定位:是侵犯个人隐私的
1.请求定位管理器
2.设置定位监听(可在服务销毁时取消定位,即移除监听,定位会消耗性能

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LocationManager locMgr=(LocationManager) getSystemService(Context.LOCATION_SERVICE);

MyListener listener=new MyListener();

locMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, listener);//listener是LocationListener的实现类,

locMgr.removeUpdates(listener);



private class MyListener implements LocationListener{

	//定位回调：经纬度
	@Override
	public void onLocationChanged(Location location) {
		//获取定位经纬度
		double lng = location.getLongitude();//精度
		double lat = location.getLatitude();//维度
		
		System.out.println("lnt="+lng+",lat="+lat);
		Toast.makeText(MainActivity.this, "定位成功=lng="+lng+",lat="+lat, Toast.LENGTH_LONG).show();
		try {
			InputStream is = getAssets().open("axisoffset.dat");
			//火星坐标系-> 真实坐标
			ModifyOffset offset = ModifyOffset.getInstance(is);
			PointDouble pt = new PointDouble(lng, lat);
			PointDouble result = offset.s2c(pt);
			
			System.out.println("result=lng"+result.x+",lat="+result.y);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	//状态发送改变回调
	@Override
	public void onStatusChanged(String provider, int status, Bundle extras) {
		// TODO Auto-generated method stub
	}

	@Override
	public void onProviderEnabled(String provider) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void onProviderDisabled(String provider) {
		// TODO Auto-generated method stub
		
	}
	
}