altosdroid: Display direction in map view

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

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
index db7815f3a7ab5ac4fcd069bd6f35bff95785b305..b87b51b58fd98f9bcc3aab2385c0eab31de62cee 100644 (file)
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
@@ -998,6 +998,12 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
 
        static String direction(AltosGreatCircle from_receiver,
                             Location receiver) {
+               if (from_receiver == null)
+                       return null;
+
+               if (receiver == null)
+                       return null;
+
                if (!receiver.hasBearing())
                        return null;
 
@@ -1016,8 +1022,8 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
                else if (iheading < -179 || 179 < iheading)
                        return "backwards";
                else if (iheading < 0)
-                       return String.format("left %d", -iheading);
+                       return String.format("left %d°", -iheading);
                else
-                       return String.format("right %d", iheading);
+                       return String.format("right %d°", iheading);
        }
 }