Add getDistanceSwimming method

RCTAppleHealthKit/RCTAppleHealthKit+Methods_Fitness.h

@@ -19,6 +19,7 @@
 - (void)fitness_initializeStepEventObserver:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 - (void)fitness_getDistanceWalkingRunningOnDay:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 - (void)fitness_getDailyDistanceWalkingRunningSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
+- (void)fitness_getDistanceSwimmingOnDay:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 - (void)fitness_getDailyDistanceSwimmingSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 - (void)fitness_getDistanceCyclingOnDay:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 - (void)fitness_getDailyDistanceCyclingSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;

RCTAppleHealthKit/RCTAppleHealthKit+Methods_Fitness.m

@@ -244,6 +244,30 @@ - (void)fitness_getDailyDistanceWalkingRunningSamples:(NSDictionary *)input call
                                       }];
 }
 
+- (void)fitness_getDistanceSwimmingOnDay:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
+{
+    HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:[HKUnit meterUnit]];
+    NSDate *date = [RCTAppleHealthKit dateFromOptions:input key:@"date" withDefault:[NSDate date]];
+
+    HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDistanceSwimming];
+
+    [self fetchSumOfSamplesOnDayForType:quantityType unit:unit day:date completion:^(double distance, NSDate *startDate, NSDate *endDate, NSError *error) {
+        if (!distance) {
+            callback(@[RCTJSErrorFromNSError(error)]);
+            return;
+        }
+
+        NSDictionary *response = @{
+                @"value" : @(distance),
+                @"startDate" : [RCTAppleHealthKit buildISO8601StringFromDate:startDate],
+                @"endDate" : [RCTAppleHealthKit buildISO8601StringFromDate:endDate],
+        };
+
+
+        callback(@[[NSNull null], response]);
+    }];
+}
+
 - (void)fitness_getDailyDistanceSwimmingSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
 {
     HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:[HKUnit meterUnit]];

RCTAppleHealthKit/RCTAppleHealthKit.m

@@ -160,6 +160,11 @@ @implementation RCTAppleHealthKit
     [self fitness_getDailyDistanceWalkingRunningSamples:input callback:callback];
 }
 
+RCT_EXPORT_METHOD(getDistanceSwimming:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
+{
+    [self fitness_getDistanceSwimmingOnDay:input callback:callback];
+}
+
 RCT_EXPORT_METHOD(getDailyDistanceSwimmingSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
 {
     [self fitness_getDailyDistanceSwimmingSamples:input callback:callback];

README.md

@@ -133,6 +133,7 @@ The available Healthkit permissions to use with `initHealthKit`
 | BodyTemperature        | [HKQuantityTypeIdentifierBodyTemperature](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierbodytemperature?language=objc)                   | ✓    |       |
 | DateOfBirth            | [HKCharacteristicTypeIdentifierDateOfBirth](https://developer.apple.com/reference/Healthkit/hkcharacteristictypeidentifierdateofbirth?language=objc)               | ✓    |       |
 | DistanceCycling        | [HKQuantityTypeIdentifierDistanceCycling](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierdistancecycling?language=objc)                   | ✓    | ✓     |
+| DistanceSwimming       | [HKQuantityTypeIdentifierDistanceSwimming](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierdistanceswimming?language=objc)                 | ✓    | ✓     |
 | DistanceWalkingRunning | [HKQuantityTypeIdentifierDistanceWalkingRunning](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierdistancewalkingrunning?language=objc)     | ✓    | ✓     |
 | FlightsClimbed         | [HKQuantityTypeIdentifierFlightsClimbed](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierflightsclimbed?language=objc)                     | ✓    | ✓     |
 | HeartRate              | [HKQuantityTypeIdentifierHeartRate](https://developer.apple.com/reference/Healthkit/hkquantitytypeidentifierheartrate?language=objc)                               | ✓    |       |

docs/getDistanceSwimming().md

@@ -0,0 +1,27 @@
+Get the total distance swimming on a specific day.
+
+`getDistanceSwimming` accepts an options object containing optional *`date: ISO8601Timestamp`* and *`unit: string`*. If `date` is not provided it will default to the current time. `unit` defaults to `meter`.
+
+```javascript
+let options = {
+  unit: 'mile', // optional; default 'meter'
+  date: (new Date(2016,5,1)).toISOString(), // optional; default now
+};
+```
+
+```javascript
+AppleHealthKit.getDistanceSwimming(options: Object, (err: Object, results: Object) => {
+    if (err) {
+    	return;
+    }
+    console.log(results)
+});
+```
+
+```javascript
+{
+	value: 1.45,
+	startDate: '2016-07-08T12:00:00.000-0400',
+	endDate: '2016-07-08T12:00:00.000-0400'
+}
+```