Fixed bug 3305 - Fixed TextInput status when the keyboard was dismissed with the dismiss key on the iPad

Diego

The keyboard on iPads has a dismiss button that hides the keyboard. When the keyboard was hidden using that button, instead of the return key, SDL was still reporting IsTextInputActive as true. This patch adds an extra SDL_StopTextInput when iOS reports the keyboard will hide.

src/video/uikit/SDL_uikitviewcontroller.m

@@ -251,6 +251,7 @@ SDL_AppleTVControllerUIHintChanged(void *userdata, const char *name, const char
 
 - (void)keyboardWillHide:(NSNotification *)notification
 {
+    SDL_StopTextInput();
     [self setKeyboardHeight:0];
 }