keyboard change frame observer

README.md

@@ -94,11 +94,28 @@ This event fires when the keyboard will be shown or when the keyboard frame resi
         alert('Keyboard height is: ' + e.keyboardHeight);
     }
 
+
 Properties
 -----------
 
 keyboardHeight: the height of the keyboard in pixels
 
+native.keyboardchange (iOS ONLY)
+=================
+
+This event fires when the keyboard will be shown when the keyboard frame resizes (when switching between keyboards for example)
+
+    window.addEventListener('native.keyboardchange', keyboardChangeHandler);
+
+    function keyboardChangeHandler(e){
+        alert('Keyboard height is: ' + e.keyboardHeight);
+    }
+
+
+Properties
+-----------
+
+keyboardHeight: the height of the keyboard in pixels
 
 Supported Platforms
 -------------------

src/ios/IonicKeyboard.h

@@ -3,7 +3,7 @@
 
 @interface IonicKeyboard : CDVPlugin <UIScrollViewDelegate> {
     @protected
-    id _keyboardShowObserver, _keyboardHideObserver;
+    id _keyboardShowObserver, _keyboardHideObserver, _keyboardChangeObserver;
     IMP wkOriginalImp, uiOriginalImp, nilImp;
     Method wkMethod, uiMethod;
 }

src/ios/IonicKeyboard.m

@@ -50,8 +50,18 @@ - (void)pluginInitialize {
                                    //deprecated
                                    [weakSelf.commandDelegate evalJs:@"cordova.fireWindowEvent('native.hidekeyboard'); "];
                                }];
+
+    _keyboardChangeObserver = [nc addObserverForName:UIKeyboardDidChangeFrameNotification
+                                              object:nil
+                                               queue:[NSOperationQueue mainQueue]
+                                          usingBlock:^(NSNotification* notification){
+                                              CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;                                            
+                                              [weakSelf.commandDelegate evalJs:[NSString stringWithFormat:@"cordova.fireWindowEvent('native.keyboardchange', {'keyboardHeight': %@});", [@(keyboardSize.height) stringValue]]];
+                                          }];
+
 }
 
+
 - (BOOL)disableScroll {
     return _disableScroll;
 }