altosdroid: Add imperial unit support

[fw/altos] / altoslib / AltosPreferences.java

diff --git a/altoslib/AltosPreferences.java b/altoslib/AltosPreferences.java
index af87b213ee575a9c0f7990cb1505cb5b9ecb521e..dba57dcb73d055f0509257e809346c721dacde92 100644 (file)
--- a/altoslib/AltosPreferences.java
+++ b/altoslib/AltosPreferences.java
@@ -157,6 +157,10 @@ public class AltosPreferences {
        public static int launcher_channel;
 
        public static void init(AltosPreferencesBackend in_backend) {
+
+               if (backend != null)
+                       return;
+
                backend = in_backend;
 
                /* Initialize logdir from preferences */