add reduce motion for ios

limit reduce motion check to iOS 8+

README.md

@@ -31,6 +31,7 @@ The `MobileAccessibility` object, exposed by `window.MobileAccessibility`, provi
 - MobileAccessibility.isGuidedAccessEnabled
 - MobileAccessibility.isInvertColorsEnabled
 - MobileAccessibility.isMonoAudioEnabled
+- MobileAccessibility.isReduceMotionEnabled
 - MobileAccessibility.isTouchExplorationEnabled
 - MobileAccessibility.getTextZoom
 - MobileAccessibility.setTextZoom
@@ -284,6 +285,35 @@ Makes an asynchronous call to native `MobileAccessibility` to determine if mono
 
 - iOS
 
+----------------------------------------------------
+#### MobileAccessibility.isReduceMotionEnabled(callback)
+
+
+An iOS-specific proxy for the `MobileAccessibility.UIAccessibilityIsReduceMotionEnabled` method.
+
+##### Parameters
+
+- __callback__ (Function) A callback method to receive the boolean result asynchronously from the native `MobileAccessibility` plugin.
+
+##### Usage
+
+```javascript
+    function isReduceMotionEnabledCallback(boolean) {
+        if (boolean) {
+            console.log("Reduce Motion: ON");
+            // Do something to improve the behavior of the application when reduce motion is enabled.
+        } else {
+            console.log("Reduce Motion: OFF");
+        }
+    }
+
+    MobileAccessibility.isReduceMotionEnabled(isReduceMotionEnabledCallback);
+```
+
+##### Supported Platforms
+
+- iOS
+
 ------------------------------------------------------------
 #### MobileAccessibility.isTouchExplorationEnabled(callback)
 
@@ -503,6 +533,7 @@ The following event constants are for `window` events, to which an application c
 - MobileAccessibilityNotifications.GUIDED_ACCESS_STATUS_CHANGED
 - MobileAccessibilityNotifications.INVERT_COLORS_STATUS_CHANGED
 - MobileAccessibilityNotifications.MONO_AUDIO_STATUS_CHANGED
+- MobileAccessibilityNotifications.REDUCE_MOTION_STATUS_CHANGED
 - MobileAccessibilityNotifications.TOUCH_EXPLORATION_STATUS_CHANGED
 
 ----------------------------------------------------------------------------------------------
@@ -625,6 +656,30 @@ If a screen reader is active, `info.isMonoAudioEnabled` will equal `true`.
     window.addEventListener(MobileAccessibilityNotifications.MONO_AUDIO_STATUS_CHANGED, onMonoAudioStatusChanged, false);
 ```
 
+----------------------------------------------------------------------------------------
+#### MobileAccessibilityNotifications.REDUCE_MOTION_STATUS_CHANGED (reducemotionstatuschanged)
+
+The event fires when Reduce Motion has been enabled on an iOS device.
+The event returns an object, `info`, with the current status of accessibility features on the device.
+If a screen reader is active, `info.isReduceMotionEnabled` will equal `true`.
+
+```javascript
+    // Define a persistent callback method to handle the event
+    function onReduceMotionStatusChanged(info) {
+        if (info && typeof info.isReduceMotionEnabled !== "undefined") {
+            if (info.isReduceMotionEnabled) {
+                console.log("Reduce Motion: ON");
+                // Do something to improve the behavior of the application while Reduce Motion is enabled.
+            } else {
+                console.log("Reduce Motion: OFF");
+            }
+        }
+    }
+
+    // Register the callback method to handle the event
+    window.addEventListener(MobileAccessibilityNotifications.REDUCE_MOTION_STATUS_CHANGED, onMReduceMotionStatusChanged, false);
+```
+
 ------------------------------------------------------------------------------------------------------
 #### MobileAccessibilityNotifications.TOUCH_EXPLORATION_STATUS_CHANGED (touchexplorationstatuschanged)