diff --git a/src/platforms/app-plus/service/framework/tab-bar.js b/src/platforms/app-plus/service/framework/tab-bar.js
index e1c7962ef96019f7c3c82002209bd63d8097777a..072db887c671ef57696ef4e9082626ed7db50c5c 100644
--- a/src/platforms/app-plus/service/framework/tab-bar.js
+++ b/src/platforms/app-plus/service/framework/tab-bar.js
@@ -8,6 +8,7 @@ import {
 } from '../bridge'
 
 const TABBAR_HEIGHT = 50
+const isIOS = plus.os.name === 'iOS'
 let config
 
 /**