Cancel the return button of uniapp's navigation bar

In recent years, with the rapid development of mobile Internet, mobile applications, as an important part of the Internet, have been continuously updated and improved. During this process, a cross-platform development framework called Uniapp gradually became popular. Compared with the traditional native development method, Uniapp has high development efficiency and fast iteration speed, and is increasingly popular among developers. However, due to its cross-platform nature and the differences between different platforms, you may encounter various problems during the development process, such as how to cancel the navigation bar back button in Uniapp.

First of all, let’s take a brief look at how the return button of the navigation bar in Uniapp is generated. In the process of developing pages using Uniapp, we often use the uni-navigation-bar tag to define the navigation bar, which includes the return button, title, and right action button. By default, the back button on the left is automatically added when the page path changes and jumps to the previous page. Therefore, if you need to cancel the back button, you need to modify this default behavior.

In Uniapp, canceling the navigation bar return button can be implemented in many ways. The following are two of the more common methods:

Method 1: Customize the navigation bar

Uniapp provides a very convenient way to customize the navigation bar, we can use it in the vue of the page Define a new component directly in the file and use it as the navigation bar of the uni page. This method is more flexible, can meet the needs of various styles, and fully controls the return button, title and other elements.

Example:

<template>
  <view>
    <!-- 自定义标题栏 -->
    <my-navigation-bar 
      :title="title" 
      :show-back="false">
    </my-navigation-bar>
    <!-- 页面内容 -->
    <view class="content">
      ...
    </view>
  </view>
</template>

<script>
import MyNavigationBar from './components/MyNavigationBar.vue';

export default {
  components: {
    MyNavigationBar,
  },
  data() {
    return {
      title: '我的页面',
    };
  },
};
</script>

In the above code, we use a component named my-navigation-bar as the navigation bar of the page. This component can be custom written in the components folder and introduced and used in the vue file of the page. show-backThe attribute indicates whether to display the back button. When its value is false, the back button is canceled.

Method 2: Using routing parameters

Route jump in Uniapp is implemented through the uni.navigateBack and uni.navigateTo methods. In both methods, an object can be passed in as a parameter to control the jump behavior. Among them, delta represents the number of pages returned. If the value is 1, it will return to the previous page; NAVIGATION_STYLE_CUSTOM represents the use of personalized navigation bar, through settings This attribute does not embed the uni-navigation-bar tag in the page to achieve the effect of canceling the return button.

Example:

uni.navigateBack({
  delta: 1,
  animationType: 'pop-out',
  animationDuration: 200,
  navigationBarStyle: 'custom',
});

By setting the navigationBarStyle property to custom, Uniapp will automatically determine that the current platform is a custom navigation bar and cancel the return button .

In summary, there are many ways to cancel the navigation bar return button in Uniapp. The two methods introduced above are both practical. We can choose the appropriate method to use according to our own needs. I believe that as time goes by, Uniapp's development efficiency and cross-platform capabilities will become more and more powerful, and more development problems will be solved.

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