altosdroid: Add multi-tracker support

[fw/altos] / altosdroid / src / org / altusmetrum / AltosDroid / AltosDroidPreferencesBackend.java

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java
index 75676e284909d4e72038ccb0e827d75cb0f4d1fc..dfc3715323dbaad67db4b2fe93853823a0539119 100644 (file)
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferencesBackend.java
@@ -44,7 +44,12 @@ public class AltosDroidPreferencesBackend implements AltosPreferencesBackend {
 
        public String[] keys() {
                Map<String, ?> all = prefs.getAll();
-               return (String[])all.keySet().toArray();
+               Object[] ao = all.keySet().toArray();
+
+               String[] as = new String[ao.length];
+               for (int i = 0; i < ao.length; i++)
+                       as[i] = (String) ao[i];
+               return as;
        }
 
        public AltosPreferencesBackend node(String key) {
@@ -104,6 +109,7 @@ public class AltosDroidPreferencesBackend implements AltosPreferencesBackend {
        }
 
        public void remove(String key) {
+               AltosDebug.debug("remove preference %s\n", key);
                editor.remove(key);
        }