#鸿蒙通关秘籍#如何在Tabs组件中拦截内容即将改变的事件？

@Entry
@Component
struct TabsContentWillChangeExample {
  @State currentIndex = 0;
  
  build() {
    Tabs({ index: this.currentIndex }) {
      TabContent() {
        Column().width('100%').height('100%').backgroundColor('#00CB87');
      }.tabBar('First Tab')

      TabContent() {
        Column().width('100%').height('100%').backgroundColor('#007DFF');
      }.tabBar('Second Tab')
    }
    .onContentWillChange((currentIndex, comingIndex) => {
      if (comingIndex === 1) {
        console.log('Switching to Second Tab is not allowed');
        return false;
      }
      return true;
    });
  }
}
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