fix(tabs): do not emit tab change if selectedTab undefined

2026-03-13 10:22:08 +08:00 · 2019-07-02 15:04:46 -05:00
parent dfa2b13c3a
commit 03c834c647
1 changed files with 5 additions and 3 deletions
--- a/core/src/components/tab-bar/tab-bar.tsx
+++ b/core/src/components/tab-bar/tab-bar.tsx
@@ -34,9 +34,11 @@ export class TabBar implements ComponentInterface {
  @Prop() selectedTab?: string;
  @Watch('selectedTab')
  selectedTabChanged() {
-    this.ionTabBarChanged.emit({
-      tab: this.selectedTab
-    });
+    if (this.selectedTab !== undefined) {
+      this.ionTabBarChanged.emit({
+        tab: this.selectedTab
+      });
+    }
  }

  /**