Question

我需要在不显示活动地图的情况下获取我的位置！现在，我可以获取位置将mapFragment添加到Layout中。

这是我的代码，请帮助我：

# Using with statement just for good form; in this case it would work the
# same on CPython, but on other interpreters or different CPython use cases,
# it's easy to screw something up; use with statements all the time to build good habits
with open(path, encoding='utf-8') as f:
    records=[json.loads(line) for line in f]

Answer 1

如果您只想要没有地图的位置，则不需要google-maps。

试试这个 - 在您的清单中添加这些权限 -

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

然后在你的代码中使用 -

//get latitude & longitude
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); 
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();

//get a location listener
private final LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}


//get the address from lat and long.
Geocoder geoCoder = new Geocoder(mContext, Locale.getDefault());
    StringBuilder builder = new StringBuilder();
    try {
        List<Address> address = geoCoder.getFromLocation(latitude, longitude, 1);
        int maxLines = address.get(0).getMaxAddressLineIndex();
        for (int i=0; i<maxLines; i++) {
            String addressStr = address.get(0).getAddressLine(i);
            builder.append(addressStr);
            builder.append(" ");
        }

        String finalAddress = builder.toString(); //This is the complete address.
        Log.d(TAG, "Final ADD: " + finalAddress);


    } catch (IOException e) {}
    catch (NullPointerException e) {}

Answer 2

' getLastKnownLocation '返回' NULL '，因为没有最后知道的位置。要获取该位置，您可以注册位置更新。但在请求更新之前，您的应用必须连接到位置服务。通过调用“ requestLocationUpdates ”来启动更新。在Google客户端提供的“ onConnected（）'回调中执行此操作。

有关详情，请以此为参考：http://developer.android.com/training/location/receive-location-updates.html

Android谷歌地图，如果我没有将MapFragment添加到布局中，我的代码就不起作用了。使用map-v2

2 个答案: