breaking change(Popup): rename transitionend event (#1940)

docs/markdown/changelog.md

@@ -14,6 +14,10 @@
 - `text`选项重命名为`message`
 - `backgroundColor`选项重命名为`background`
 
+##### Popup
+
+- `transitionEnd`事件重命名为`transitionend`
+
 #### 新特性
 
 ##### Popup

packages/mixins/transition.ts

@@ -120,7 +120,7 @@ export const transition = function (showDefaultValue: boolean) {
       onTransitionEnd() {
         if (!this.data.show) {
           this.set({ display: false });
-          this.$emit('transitionEnd');
+          this.$emit('transitionend');
         }
       }
     }

packages/popup/README.md

@@ -88,7 +88,7 @@ Page({
 |-----------|-----------|-----------|
 | bind:close | 关闭弹出层时触发 | - |
 | bind:click-overlay | 点击遮罩层时触发 | - |
-| bind:transitionEnd | 弹出层动画结束后触发 | - |
+| bind:transitionend | 弹出层动画结束后触发 | - |
 
 ### 外部样式类