added getter methods for BodyFatPercentage and LeanBodyMass and Height

RCTAppleHealthKit/RCTAppleHealthKit+Methods_Body.h

@@ -15,4 +15,9 @@
 
 - (void)body_getLatestBodyMassIndex:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
 
+- (void)body_getMostRecentHeight:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
+- (void)body_getMostRecentBodyFatPercentage:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
+- (void)body_getMostRecentLeanBodyMass:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback;
+
+
 @end

RCTAppleHealthKit/RCTAppleHealthKit+Methods_Body.m

@@ -84,4 +84,65 @@
 }
 
 
+- (void)body_getMostRecentHeight:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
+{
+    HKQuantityType *heightType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight];
+
+    [self fetchMostRecentQuantitySampleOfType:heightType predicate:nil completion:^(HKQuantity *mostRecentQuantity, NSDate *startDate, NSDate *endDate, NSError *error) {
+        if (!mostRecentQuantity) {
+            NSLog(@"Either an error occured fetching the user's height information or none has been stored yet. In your app, try to handle this gracefully.");
+            callback(@[RCTMakeError(@"Either an error occured fetching the user's height information or none has been stored yet. In your app, try to handle this gracefully.", nil, nil)]);
+        }
+        else {
+            // Determine the weight in the required unit.
+            HKUnit *heightUnit = [HKUnit inchUnit];
+            double usersHeight = [mostRecentQuantity doubleValueForUnit:heightUnit];
+
+            callback(@[[NSNull null], @(usersHeight)]);
+        }
+    }];
+}
+
+
+- (void)body_getMostRecentBodyFatPercentage:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
+{
+    HKQuantityType *bodyFatPercentType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyFatPercentage];
+
+    [self fetchMostRecentQuantitySampleOfType:bodyFatPercentType predicate:nil completion:^(HKQuantity *mostRecentQuantity, NSDate *startDate, NSDate *endDate, NSError *error) {
+        if (!mostRecentQuantity) {
+            NSLog(@"Either an error occured fetching the user's BodyFatPercentage information or none has been stored yet. In your app, try to handle this gracefully.");
+            callback(@[RCTMakeError(@"Either an error occured fetching the user's BodyFatPercentage information or none has been stored yet. In your app, try to handle this gracefully.", nil, nil)]);
+        }
+        else {
+            // Determine the weight in the required unit.
+            HKUnit *percentUnit = [HKUnit percentUnit];
+            double percentage = [mostRecentQuantity doubleValueForUnit:percentUnit];
+
+            percentage = percentage * 100;
+
+            callback(@[[NSNull null], @(percentage)]);
+        }
+    }];
+}
+
+
+- (void)body_getMostRecentLeanBodyMass:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
+{
+    HKQuantityType *leanBodyMassType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierLeanBodyMass];
+
+    [self fetchMostRecentQuantitySampleOfType:leanBodyMassType predicate:nil completion:^(HKQuantity *mostRecentQuantity, NSDate *startDate, NSDate *endDate, NSError *error) {
+        if (!mostRecentQuantity) {
+            NSLog(@"Either an error occured fetching the user's LeanBodyMass information or none has been stored yet. In your app, try to handle this gracefully.");
+            callback(@[RCTMakeError(@"Either an error occured fetching the user's LeanBodyMass information or none has been stored yet. In your app, try to handle this gracefully.", nil, nil)]);
+        }
+        else {
+            HKUnit *weightUnit = [HKUnit poundUnit];
+            double leanBodyMass = [mostRecentQuantity doubleValueForUnit:weightUnit];
+
+            callback(@[[NSNull null], @(leanBodyMass)]);
+        }
+    }];
+}
+
+
 @end

RCTAppleHealthKit/RCTAppleHealthKit.m

@@ -39,16 +39,39 @@ RCT_EXPORT_METHOD(saveWeight:(NSDictionary *)input callback:(RCTResponseSenderBl
     [self body_saveWeight:input callback:callback];
 }
 
+
+RCT_EXPORT_METHOD(getMostRecentHeight:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
+{
+    [self body_getMostRecentHeight:input callback:callback];
+}
+
+
+
 RCT_EXPORT_METHOD(getLatestBmi:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
 {
     [self body_getLatestBodyMassIndex:input callback:callback];
 }
 
+
+RCT_EXPORT_METHOD(getMostRecentBodyFatPercentage:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
+{
+    [self body_getMostRecentBodyFatPercentage:input callback:callback];
+}
+
+RCT_EXPORT_METHOD(getMostRecentLeanBodyMass:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
+{
+    [self body_getMostRecentLeanBodyMass:input callback:callback];
+}
+
+
 RCT_EXPORT_METHOD(getStepCountForToday:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
 {
     [self fitness_getStepCountForToday:input callback:callback];
 }
 
+
+
+
 RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
 {
     [self getModuleInfo:input callback:callback];
@@ -94,7 +117,7 @@ RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock
 
         // make sure at least 1 read or write permission is provided
         if(!writeDataTypes && !readDataTypes){
-            callback(@[RCTMakeError(@"at least 1 write or read permission must be set in options.permissions", nil, nil)]);
+            callback(@[RCTMakeError(@"at least 1 read or write permission must be set in options.permissions", nil, nil)]);
             return;
         }