Disable for UICollectionView on iOS 9, which seems to be automatic now

TPKeyboardAvoiding/TPKeyboardAvoidingCollectionView.m

@@ -16,6 +16,8 @@ @implementation TPKeyboardAvoidingCollectionView
 #pragma mark - Setup/Teardown
 
 - (void)setup {
+    if ( [self hasAutomaticKeyboardAvoidingBehaviour] ) return;
+
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(TPKeyboardAvoiding_keyboardWillShow:) name:UIKeyboardWillChangeFrameNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(TPKeyboardAvoiding_keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(scrollToActiveTextField) name:UITextViewTextDidBeginEditingNotification object:nil];
@@ -45,6 +47,18 @@ -(void)dealloc {
 #endif
 }
 
+
+-(BOOL)hasAutomaticKeyboardAvoidingBehaviour {
+    if ( [[[UIDevice currentDevice] systemVersion] integerValue] >= 9
+            && [self.delegate isKindOfClass:[UICollectionViewController class]] ) {
+        // Theory: It looks like iOS 9's collection views automatically avoid the keyboard. As usual
+        // Apple have totally failed to document this anywhere, so this is just a guess.
+        return YES;
+    }
+
+    return NO;
+}
+
 -(void)setFrame:(CGRect)frame {
     [super setFrame:frame];
     [self TPKeyboardAvoiding_updateContentInset];