Update theme-change.uvue

pages/API/theme-change/theme-change.uvue

-<template>
-  <view class="uni-padding-wrap">
-    <view class="uni-common-mt item-box">
-      <text>osTheme:</text>
-      <text id="theme">{{ osTheme }}</text>
+<template>
+  <view class="uni-padding-wrap">
+    <view class="uni-common-mt item-box">
+      <text>osTheme:</text>
+      <text id="theme">{{ osTheme }}</text>
     </view>
     <view class="uni-common-mt item-box">
       <text>应用当前主题:</text>
@@ -23,10 +23,10 @@
         </radio>
       </radio-group>
     </view>
-
-  </view>
-</template>
-
+
+  </view>
+</template>
+
 <script>
   export default {
     data() {
@@ -91,17 +91,21 @@
       //注销监听
       uni.offAppThemeChange(this.appThemeChangeId)
       uni.offOsThemeChange(this.osThemeChangeId)
+      uni.showToast({
+        "position":"bottom",
+        "title":"已停止监听主题切换"
+      })
     }
-  }
-</script>
-
-<style>
-  .item-box {
-    display: flex;
-    flex-direction: row;
-    justify-content: space-between;
+  }
+</script>
+
+<style>
+  .item-box {
+    display: flex;
+    flex-direction: row;
+    justify-content: space-between;
   }
   .uni-list-cell {
     justify-content: flex-start;
-  }
+  }
 </style>