dlt.showTabBarRedDot

Introduction

Display a red dot in the top right corner of a specific item in the tabBar.

Usage Limitations

Supported in the basic library version 4.0.0 or higher.

Parameters

Object object

Property	Type	Default	Required	Description
index	number		Yes	The index of the tabBar item, starting from the left, with an initial value of 0.
success	function		No	Callback function for a successful API call.
fail	function		No	Callback function for a failed API call.
complete	function		No	Callback function for the completion of the API call (executed whether the call is successful or not).

object.success Callback Function

Parameters

Object res

Property	Type	Description
success	string	true - Setting successful.

object.fail Callback Function

Parameters

Object res

Property	Type	Description
success	string	false - Setting failed.

Sample Code

// pages/index/index.js
Page({
  showTabBarRedDot() {
    dlt.showTabBarRedDot({
      index: 0,
      success: () => {
        console.log('success');
      },
    });
  },
});