InterpolationAnimatedNode fromDoubleArray should support the string type

Summary:
The `NativeAnimationsExample` in Android can not work due to inputRange and outputRange were limited to double array type, which is different from iOS.

So we need let android version to support string array type.
Closes https://github.com/facebook/react-native/pull/8900

Differential Revision: D3674754

fbshipit-source-id: e7844f00940bf0fdd6f7f5003dd4eeefa0c317a0

Libraries/Animated/src/AnimatedImplementation.js

@@ -1008,10 +1008,30 @@ class AnimatedInterpolation extends AnimatedWithChildren {
     super.__detach();
   }
 
+  __transformDataType(range) {
+    // Change the string array type to number array
+    // So we can reuse the same logic in iOS and Android platform
+    return range.map(function (value) {
+      if (typeof value !== 'string') {
+        return value;
+      }
+      if (/deg$/.test(value)) {
+        let degrees = parseFloat(value, 10) || 0;
+        let radians = degrees * Math.PI / 180.0;
+        return radians;
+      } else {
+        // Assume radians
+        return parseFloat(value, 10) || 0;
+      }
+    });
+  }
+
   __getNativeConfig(): any {
     NativeAnimatedHelper.validateInterpolation(this._config);
     return {
       ...this._config,
+      // Only the `outputRange` can contain strings so we don't need to tranform `inputRange` here
+      outputRange: this.__transformDataType(this._config.outputRange),
       type: 'interpolation',
     };
   }

Libraries/NativeAnimation/Nodes/RCTInterpolationAnimatedNode.m

@@ -26,15 +26,6 @@
     for (id value in config[@"outputRange"]) {
       if ([value isKindOfClass:[NSNumber class]]) {
         [outputRange addObject:value];
-      } else if ([value isKindOfClass:[NSString class]]) {
-        NSString *str = (NSString *)value;
-        if ([str hasSuffix:@"deg"]) {
-          double degrees = str.doubleValue;
-          [outputRange addObject:@(RCTDegreesToRadians(degrees))];
-        } else {
-          // Assume radians
-          [outputRange addObject:@(str.doubleValue)];
-        }
       }
     }
     _outputRange = [outputRange copy];