問題描述

如何使用定位工具在android中獲取移動設備的當前緯度和經度?

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

推薦答案

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();

對 getLastKnownLocation() 的調用不會阻塞 - 這意味著如果當前沒有可用位置，它將返回 null - 所以你可能想看看將 LocationListener 傳遞給 requestLocationUpdates() 方法，它將為您提供位置的異步更新.

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);

您需要為您的應用程序提供 ACCESS_FINE_LOCATION 權限 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" />

您可能還想添加 ACCESS_COARSE_LOCATION 當 GPS 不可用時的權限 并使用 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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