1

src/components/FloatPanel/index.vue

@@ -94,29 +94,50 @@ export default {
   methods: {
     show(callback) {
       this.ensureParentPosition()
+      // 使用 requestAnimationFrame 确保在下一帧渲染时显示，避免闪烁
+      requestAnimationFrame(() => {
         this.showPanel = true
         this.callback = callback
+      })
     },
     hide() {
       this.showPanel = false
       this.callback = null
+      // 延迟恢复父容器定位，等待动画完成
+      setTimeout(() => {
         this.restoreParentPosition()
+      }, 300)
     },
     ensureParentPosition() {
-      // 确保父容器有 position: relative
+      // 确保父容器有 position: relative，提前设置避免闪烁
+      if (!this.parentElement) {
+        // 在组件挂载后立即获取父元素
+        if (this.$el && this.$el.parentElement) {
+          this.parentElement = this.$el.parentElement
+        } else {
+          // 如果组件还未挂载，使用 $nextTick
           this.$nextTick(() => {
-        if (!this.parentElement && this.$el) {
+            if (this.$el && this.$el.parentElement) {
               this.parentElement = this.$el.parentElement
             }
+            this.setParentPosition()
+          })
+          return
+        }
+      }
+      this.setParentPosition()
+    },
+    setParentPosition() {
       if (this.parentElement) {
         const computedStyle = window.getComputedStyle(this.parentElement)
         const position = computedStyle.position
         if (position === 'static' || !position) {
           this.originalParentPosition = this.parentElement.style.position || ''
+          // 使用 will-change 优化性能
+          this.parentElement.style.willChange = 'transform'
           this.parentElement.style.position = 'relative'
         }
       }
-      })
     },
     restoreParentPosition() {
       // 恢复父容器的原始定位
@@ -126,6 +147,7 @@ export default {
         } else {
           this.parentElement.style.position = ''
         }
+        this.parentElement.style.willChange = ''
         this.originalParentPosition = null
       }
     },
@@ -150,14 +172,25 @@ export default {
       }
     }
   },
+  mounted() {
+    // 组件挂载后立即获取父元素并设置定位，避免后续闪烁
+    this.$nextTick(() => {
+      if (this.$el && this.$el.parentElement) {
+        this.parentElement = this.$el.parentElement
+        // 预先设置 position，避免显示时闪烁
+        this.setParentPosition()
+      }
+    })
+  },
   beforeDestroy() {
     // 组件销毁时关闭面板并清理
     if (this.showPanel) {
       this.hide()
-    }
+    } else {
       this.restoreParentPosition()
     }
   }
+}
 </script>
 
 <style lang="less" scoped>
@@ -170,6 +203,11 @@ export default {
   z-index: 1000;
   width: 100%;
   height: 100%;
+  /* 使用 will-change 优化性能，避免重排 */
+  will-change: transform;
+  /* 使用 transform 代替 position，避免触发重排 */
+  transform: translateZ(0);
+  backface-visibility: hidden;
 }
 
 .float-panel {
@@ -182,6 +220,10 @@ export default {
   display: flex;
   flex-direction: column;
   overflow: hidden;
+  /* 使用 GPU 加速，避免闪烁 */
+  will-change: transform;
+  transform: translateZ(0);
+  backface-visibility: hidden;
 
   &.float-panel-right {
     animation: slideInRight 0.3s ease-out;
@@ -242,12 +284,16 @@ export default {
 // 动画效果
 .float-panel-enter-active,
 .float-panel-leave-active {
-  transition: opacity 0.3s;
+  transition: opacity 0.3s ease;
+  /* 使用 transform 代替 opacity，性能更好 */
+  will-change: transform, opacity;
 }
 
 .float-panel-enter,
 .float-panel-leave-to {
   opacity: 0;
+  /* 使用 transform 避免重排 */
+  transform: translateZ(0);
 }
 
 @keyframes slideInRight {