add reduce motion for ios

limit reduce motion check to iOS 8+

src/ios/CDVMobileAccessibility.h

@@ -31,6 +31,7 @@ static const int BASE_UI_FONT_TEXT_STYLE_BODY_POINT_SIZE = 16;
     BOOL guidedAccessEnabled;
     BOOL invertColorsEnabled;
     BOOL monoAudioEnabled;
+    BOOL reduceMotionEnabled;
 }
 
 @property (strong) NSString* callbackId;
@@ -40,6 +41,7 @@ static const int BASE_UI_FONT_TEXT_STYLE_BODY_POINT_SIZE = 16;
 @property BOOL guidedAccessEnabled;
 @property BOOL invertColorsEnabled;
 @property BOOL monoAudioEnabled;
+@property BOOL reduceMotionEnabled;
 @property double mFontScale;
 
 
@@ -51,6 +53,7 @@ static const int BASE_UI_FONT_TEXT_STYLE_BODY_POINT_SIZE = 16;
 - (void) getTextZoom:(CDVInvokedUrlCommand*)command;
 - (void) setTextZoom:(CDVInvokedUrlCommand*)command;
 - (void) updateTextZoom:(CDVInvokedUrlCommand*)command;
+- (void) isReduceMotionEnabled:(CDVInvokedUrlCommand*)command;
 - (void) postNotification:(CDVInvokedUrlCommand*)command;
 - (void) start:(CDVInvokedUrlCommand*)command;
 - (void) stop:(CDVInvokedUrlCommand*)command;

src/ios/CDVMobileAccessibility.m

@@ -39,8 +39,10 @@
 @synthesize invertColorsEnabled;
 @synthesize monoAudioEnabled;
 @synthesize mFontScale;
+@synthesize reduceMotionEnabled;
 
 #define iOS7Delta (([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0 ) ? 20 : 0 )
+#define iOS8Delta (([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0 ) ? 30 : 0 )
 
 // //////////////////////////////////////////////////
 
@@ -215,6 +217,19 @@
     }
 }
 
+- (void)isReduceMotionEnabled:(CDVInvokedUrlCommand*)command
+{
+    [self.commandDelegate runInBackground:^{
+        if (iOS8Delta) {
+            self.reduceMotionEnabled = UIAccessibilityIsReduceMotionEnabled();
+        } else {
+            self.reduceMotionEnabled = false;
+        }
+        CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:self.reduceMotionEnabled];
+        [self.commandDelegate sendPluginResult:result callbackId:command.callbackId];
+    }];
+}
+
 
 - (void)postNotification:(CDVInvokedUrlCommand *)command
 {
@@ -309,6 +324,7 @@
     self.guidedAccessEnabled = UIAccessibilityIsGuidedAccessEnabled();
     self.invertColorsEnabled = UIAccessibilityIsInvertColorsEnabled();
     self.monoAudioEnabled = UIAccessibilityIsMonoAudioEnabled();
+    self.reduceMotionEnabled = UIAccessibilityIsReduceMotionEnabled();
 
     NSMutableDictionary* mobileAccessibilityData = [NSMutableDictionary dictionaryWithCapacity:5];
     [mobileAccessibilityData setObject:[NSNumber numberWithBool:self.voiceOverRunning] forKey:@"isScreenReaderRunning"];
@@ -316,6 +332,7 @@
     [mobileAccessibilityData setObject:[NSNumber numberWithBool:self.guidedAccessEnabled] forKey:@"isGuidedAccessEnabled"];
     [mobileAccessibilityData setObject:[NSNumber numberWithBool:self.invertColorsEnabled] forKey:@"isInvertColorsEnabled"];
     [mobileAccessibilityData setObject:[NSNumber numberWithBool:self.monoAudioEnabled] forKey:@"isMonoAudioEnabled"];
+    [mobileAccessibilityData setObject:[NSNumber numberWithBool:self.reduceMotionEnabled] forKey:@"isReduceMotionEnabled"];
     return mobileAccessibilityData;
 }
 
@@ -330,6 +347,7 @@
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityGuidedAccessStatusDidChangeNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityInvertColorsStatusDidChangeNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityMonoAudioStatusDidChangeNotification object:nil];
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(mobileAccessibilityStatusChanged:) name:UIAccessibilityReduceMotionStatusDidChangeNotification object:nil];
 
         // Update the callback on start
         CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:[self getMobileAccessibilityStatus]];
@@ -356,6 +374,7 @@
         [[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityInvertColorsStatusDidChangeNotification object:nil];
         [[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityAnnouncementDidFinishNotification object:nil];
         [[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityMonoAudioStatusDidChangeNotification object:nil];
+        [[NSNotificationCenter defaultCenter] removeObserver:self name:UIAccessibilityReduceMotionStatusDidChangeNotification object:nil];
     }];
 }