lib/android: fix `AndroidKeyEvent::to_c` to return a `nullable Char`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/android/input_events.nit b/lib/android/input_events.nit
index 45cc8a1..9597eea 100644 (file)
--- a/lib/android/input_events.nit
+++ b/lib/android/input_events.nit
@@ -213,7 +213,14 @@ extern class AndroidKeyEvent `{AInputEvent *`}
        # Hardware code of the key raising this event
        fun key_code: Int `{ return AKeyEvent_getKeyCode(self); `}
 
-       redef fun to_c `{
+       redef fun to_c
+       do
+               var i = native_to_c
+               if i == 0 then return null
+               return i.code_point
+       end
+
+       private fun native_to_c: Int `{
                int code = AKeyEvent_getKeyCode(self);
                if (code >= AKEYCODE_0 && code <= AKEYCODE_9)
                        return '0'+code-AKEYCODE_0;