animation

src/components/ProjectDropDown/ProjectDropDown.js

@@ -1,5 +1,7 @@
 import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import {
+  Animated,
+  Easing,
   FlatList,
   Image,
   Pressable,
@@ -43,6 +45,7 @@ const ProjectDropDown = ({
 }) => {
   const [isOpen, setIsOpen] = useState(false);
   const [triggerLayout, setTriggerLayout] = useState(null);
+  const dropdownAnimation = useRef(new Animated.Value(0)).current;
 
   const normalizedProjects = Array.isArray(projects) ? projects : [];
   const isDisabled = normalizedProjects.length === 0;
@@ -102,6 +105,52 @@ const ProjectDropDown = ({
     [triggerLayout],
   );
 
+  useEffect(() => {
+    Animated.timing(dropdownAnimation, {
+      toValue: isOpen ? 1 : 0,
+      duration: 220,
+      easing: isOpen ? Easing.out(Easing.cubic) : Easing.in(Easing.cubic),
+      useNativeDriver: true,
+    }).start();
+  }, [dropdownAnimation, isOpen]);
+
+  const overlayTranslateY = useMemo(
+    () =>
+      dropdownAnimation.interpolate({
+        inputRange: [0, 1],
+        outputRange: [-12, 0],
+      }),
+    [dropdownAnimation],
+  );
+
+  const overlayScale = useMemo(
+    () =>
+      dropdownAnimation.interpolate({
+        inputRange: [0, 1],
+        outputRange: [0.96, 1],
+      }),
+    [dropdownAnimation],
+  );
+
+  const triggerOpacity = useMemo(
+    () =>
+      dropdownAnimation.interpolate({
+        inputRange: [0, 1],
+        outputRange: [1, 0],
+        extrapolate: "clamp",
+      }),
+    [dropdownAnimation],
+  );
+
+  const triggerTranslateY = useMemo(
+    () =>
+      dropdownAnimation.interpolate({
+        inputRange: [0, 1],
+        outputRange: [0, -6],
+      }),
+    [dropdownAnimation],
+  );
+
   return (
     <View style={[styles.container, style]}>
       {isOpen ? (
@@ -111,6 +160,16 @@ const ProjectDropDown = ({
       <View
         style={styles.triggerWrapper}
         onLayout={(event) => setTriggerLayout(event.nativeEvent.layout)}
+      >
+        <Animated.View
+          pointerEvents={isOpen ? "none" : "auto"}
+          style={[
+            styles.dropdownTriggerContainer,
+            {
+              opacity: triggerOpacity,
+              transform: [{ translateY: triggerTranslateY }],
+            },
+          ]}
         >
           <BlurView
             intensity={BUTTON_BLUR_INTENSITY}
@@ -118,7 +177,6 @@ const ProjectDropDown = ({
             style={[
               styles.dropdownBlur,
               isDisabled && styles.dropdownBlurDisabled,
-            isOpen && styles.dropdownBlurHidden,
             ]}
           >
             <ProjectRow
@@ -129,16 +187,26 @@ const ProjectDropDown = ({
               onSelect={toggleDropdown}
             />
           </BlurView>
+        </Animated.View>
 
+        <Animated.View
+          pointerEvents={isOpen ? "auto" : "none"}
+          style={[
+            styles.dropdownOverlayContainer,
+            { width: dropdownWidth || "100%" },
+            {
+              opacity: dropdownAnimation,
+              transform: [
+                { translateY: overlayTranslateY },
+                { scale: overlayScale },
+              ],
+            },
+          ]}
+        >
           <BlurView
             intensity={BUTTON_BLUR_INTENSITY}
             tint="dark"
-          pointerEvents={isOpen ? "auto" : "none"}
+            style={styles.dropdownOverlay}
-          style={[
-            styles.dropdownOverlay,
-            { width: dropdownWidth || "100%" },
-            !isOpen && styles.dropdownOverlayHidden,
-          ]}
           >
             <ProjectRow
               isTitle={true}
@@ -175,6 +243,7 @@ const ProjectDropDown = ({
               />
             </View>
           </BlurView>
+        </Animated.View>
       </View>
     </View>
   );
@@ -295,29 +364,30 @@ const styles = StyleSheet.create({
   dropdownBlurDisabled: {
     opacity: 0.6,
   },
-  dropdownBlurHidden: {
-    opacity: 0,
-    pointerEvents: "none",
-  },
   triggerWrapper: {
     position: "relative",
     zIndex: 3,
   },
-  dropdownOverlay: {
+  dropdownTriggerContainer: {
+    width: "100%",
+  },
+  dropdownOverlayContainer: {
     position: "absolute",
     top: 0,
     left: 0,
     borderRadius: 16,
+    overflow: "hidden",
+    zIndex: 4,
+    elevation: 4,
+    maxHeight: 400,
+  },
+  dropdownOverlay: {
+    flex: 1,
+    width: "100%",
     paddingHorizontal: 8,
     paddingVertical: 8,
     gap: 9,
     maxHeight: 400,
-    zIndex: 4,
-    elevation: 4,
-    overflow: "hidden",
-  },
-  dropdownOverlayHidden: {
-    opacity: 0,
   },
   dropdownOverlayContent: {
     maxHeight: 260,