feat: GIF 切换添加入场缩放弹性动画

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

shared/src/commonMain/kotlin/plus/rua/project/ui/AnimatedGif.kt

@@ -1,8 +1,15 @@
 package plus.rua.project.ui
 
+import androidx.compose.animation.core.Animatable
+import androidx.compose.animation.core.FastOutSlowInEasing
+import androidx.compose.animation.core.Spring
+import androidx.compose.animation.core.spring
+import androidx.compose.animation.core.tween
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.graphicsLayer
 import com.github.panpf.sketch.AsyncImage
 import plus.rua.project.getGifUri
 
@@ -26,9 +33,28 @@ fun AnimatedGif(
 ) {
     val gifFile = remember(seed) { GIF_FILES.random() }
     val uri = remember(gifFile) { getGifUri(gifFile) }
+    val scale = remember { Animatable(0f) }
+
+    LaunchedEffect(seed) {
+        scale.snapTo(0f)
+        scale.animateTo(
+            targetValue = 1.1f,
+            animationSpec = tween(250, easing = FastOutSlowInEasing),
+        )
+        scale.animateTo(
+            targetValue = 1f,
+            animationSpec = spring(dampingRatio = Spring.DampingRatioMediumBouncy),
+        )
+    }
+
     AsyncImage(
         uri = uri,
         contentDescription = contentDescription,
-        modifier = modifier,
+        modifier = modifier
+            .graphicsLayer {
+                scaleX = scale.value
+                scaleY = scale.value
+                alpha = scale.value.coerceIn(0f, 1f)
+            },
     )
 }