Added popup functionality

app/src/main/java/com/a1/nextlocation/fragments/HelpPopup.java

@@ -1,4 +1,20 @@
 package com.a1.nextlocation.fragments;
 
-public class HelpPopup {
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.DialogFragment;
+
+import com.a1.nextlocation.R;
+
+public class HelpPopup extends DialogFragment {
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.help_popup, container, false);
+        getDialog().setTitle("Simple Dialog");
+        return rootView;
+    }
 }