假設user_Location
是你的火力地堡根的直接孩子,請使用此代碼:
DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();
DatabaseReference userLocationRef = rootRef.child("user_Location").child("-KpzaWx6FfdT27FlEoaZ").child("l");
ValueEventListener eventListener = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Double lat = ds.child("0").getValue(Double.class);
Double long = ds.child("0").getValue(Double.class);
Log.d("TAG", lat + "/" + long);
}
@Override
public void onCancelled(DatabaseError databaseError) {}
};
userLocationRef.addListenerForSingleValueEvent(eventListener);
非常感謝@AlexMamo –
不客氣哈里什。所以,如果你認爲我的答案對你有幫助,請考慮接受它。謝謝! –