调用函数更新App时Ionic Force App Update崩溃

Question

I have an Ionic 3 App that needs to use Force Update to all users of the App . I used this package called Ionic App Update . I created an small express server that will just serve the client for an updates.

Here is my code in my update.xml in the server or backend

<update>
    <version>0.0.2</version>
    <name>MyApp</name>
    <url>http://192.168.214.27:3346/public/android-debug.apk</url>
</update>

and in my server.js

const express = require('express')
const app = express()
app.use('/public', express.static('public'))
app.get('/', (req, res) => {
    shell.exec('./update.sh')
})
app.listen(3336, () => {})

The server is working fine there is no errors

But when I try to call the function of the A pp Update plugin the device crashes every time.

Here is my code in my app.component.ts

constructor() {
this.update()
}

update() {
    console.log('Update check')
    const updateUrl = 'http://192.168.214.27:3346/public/update.xml';
    this.appUpdate.checkAppUpdate(updateUrl).then(() => { console.log('Update available') }).catch(err => {
      console.log(err)
      console.log('No update')
    });
  }

I am calling the update function every time the app component constructor is initialize.

But when I call the function the app crashes

Is this more of an android version issue or what?

Appreciate if someone could help. Thanks in advance.

Answer 1

This line <version>0.0.2</version> seems to be the problem. This isn't the format for android version numbers. As per cordova's documentation it is

Expressed in major/minor/patch notation.

For example version 30.20.48 would be written as 302048.

Read More: config.xml - https://cordova.apache.org/docs/en/latest/config_ref/ Android Platform Guide - https://cordova.apache.org/docs/en/latest/guide/platforms/android/index.html#setting-the-version-code