如何在android中获取移动设备的纬度和经度? [英] How to get Latitude and Longitude of the mobile device in android?

问题描述

如何使用定位工具在 android 中获取移动设备的当前纬度和经度?

How do I get the current Latitude and Longitude of the mobile device in android using location tools?

推荐答案

使用 LocationManager.

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

对 getLastKnownLocation() 的调用不会阻塞 - 这意味着如果当前没有可用的位置，它将返回 null - 所以你可能想看看将 LocationListener 传递给 requestLocationUpdates() 方法，它将为您提供位置的异步更新.

The call to getLastKnownLocation() doesn't block - which means it will return null if no position is currently available - so you probably want to have a look at passing a LocationListener to the requestLocationUpdates() method instead, which will give you asynchronous updates of your location.

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

lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);

您需要为您的应用程序提供ACCESS_FINE_LOCATION 权限 如果你想使用 GPS.

You'll need to give your application the ACCESS_FINE_LOCATION permission if you want to use GPS.

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

您可能还想添加 ACCESS_COARSE_LOCATION 许可在 GPS 不可用时使用 getBestProvider() 方法.

You may also want to add the ACCESS_COARSE_LOCATION permission for when GPS isn't available and select your location provider with the getBestProvider() method.

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