调整 transition-events 示例，覆盖iOS的 [issues](https://issues.dcloud.net.cn/pages/issues/detail?id=2386)

pages/component/global-events/transition-events.uvue

@@ -19,12 +19,7 @@
         isStart: false,
         buttonValue: "开启图片旋转",
         onTransitionEndTriggr: false,
-        // #ifdef APP-ANDROID
-        isShow: false,
-        // #endif
-        // #ifndef APP-ANDROID
-        isShow: true,
-        // #endif
+        isShow: false
       }
     },
     onReady() {
@@ -38,6 +33,9 @@
       }
       new Thread(new ThreadRunnable()).start()
       // #endif
+      // #ifndef APP-ANDROID
+      this.isShow = true
+      // #endif
     },
     methods: {
       switchBtn() {