ANDROID: fix crash entering c,v in edit control mode

Author: chrisws

ChangeLog

@@ -1,3 +1,6 @@
+2019-14-23 (0.12.15)
+	ANDROID: fix crash entering c,v in edit control mode
+
 2019-14-02 (0.12.15)
 	ANDROID: fix crash passing negative duration to SOUND command
 

src/platform/android/app/src/main/assets/main.bas

@@ -119,7 +119,7 @@ sub do_about()
   color 7
   print "Version "; sbver
   print
-  print "Copyright (c) 2002-2018 Chris Warren-Smith"
+  print "Copyright (c) 2002-2019 Chris Warren-Smith"
   print "Copyright (c) 1999-2006 Nicholas Christopoulos" + chr(10)
 
   local bn_home

src/platform/android/jni/runtime.h

@@ -74,7 +74,7 @@ struct Runtime : public System {
   bool loadSettings(Properties<String *> &settings);
   void saveConfig();
   void runPath(const char *path);
-  void setClipboardText(const char *s) { setString("setClipboardText", s); }
+  void setClipboardText(const char *s) { if (s) setString("setClipboardText", s); }
   char *getClipboardText();
   void setFocus(bool focus) { _hasFocus = focus; }
   int  getFontId();