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https://issues.apache.org/jira/browse/CB-14132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16547127#comment-16547127
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Juan Carlos ANdreu commented on CB-14132:
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I'm experiencing the same issue.
It's affecting lot's of my user base.
Why none is assigned to this? :(
> [cordova-plugin-network-information] connection.type is stale on Android 7+
> if network connectivity state changes while device is in Doze mode
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CB-14132
> URL: https://issues.apache.org/jira/browse/CB-14132
> Project: Apache Cordova
> Issue Type: Bug
> Components: cordova-plugin-network-information
> Affects Versions: 2.0.0
> Reporter: Dave Alden
> Priority: Major
> Labels: android
> Attachments: connection_type.png
>
>
> The {{navigator.connection.type}} plugin property [is
> set|https://github.com/apache/cordova-plugin-network-information/blob/2.0.1/www/network.js#L60]
> when a change in device network connectivity triggers a native callback.
> On Android, this [native
> callback|https://github.com/apache/cordova-plugin-network-information/blob/master/src/android/NetworkManager.java#L108]
> is via a BroadcastReceiver, triggered by the {{CONNECTIVITY_ACTION}}
> broadcast.
> This [sends the result back to the JS
> layer|https://github.com/apache/cordova-plugin-network-information/blob/master/src/android/NetworkManager.java#L233]
> which [triggers the JS plugin
> handler|https://github.com/apache/cordova-plugin-network-information/blob/2.0.1/www/network.js#L59]
> to set the property.
> However, Android 7 introduces ["background
> optimization"|https://developer.android.com/topic/performance/background-optimization]
> limitations and Android 8 introduces further [broadcast
> limitations|https://developer.android.com/about/versions/oreo/background#broadcasts].
> The consequence is that the plugin's broadcast receiver is not guaranteed to
> be invoked if the network state changes while the device is in Doze mode.
> And therefore the {{navigator.connection.type}} property state can be stale
> with respect to the actual network connectivity state.
> This may be the root cause of CB-13585 and CB-12035.
> The solution to this issue on Android is probably to do the same as the [iOS
> implementation|https://github.com/apache/cordova-plugin-network-information/blob/2.0.1/src/ios/CDVConnection.m#L143]:
> on resuming the app from the background, trigger an update of the
> {{navigator.connection.type}} property.
> On Android, this should mitigate the fact that the broadcast receiver may
> not have been called while the app was in the background.
> Note: my current workaround solution to this issue to is call the plugin's
> [getInfo()|https://github.com/apache/cordova-plugin-network-information/blob/2.0.1/www/network.js#L47]
> function when my app resumes from the background.
> Although this function is not in the API documentation, calling it invokes a
> [native
> method|https://github.com/apache/cordova-plugin-network-information/blob/2.0.1/src/android/NetworkManager.java#L130]
> to retrieve the current device connectivity state asyncronously via a
> callback. I then use the callback result to manually update the
> {{navigator.connection.type}} property, making sure it's fresh when the app
> is resumed from the background.
> Since {{getInfo()}} is querying the native {{ConnectivityManager}} directly,
> it's guaranteed to get the correct network state from the device, as the
> following screenshot illustrates:
> !connection_type.png!
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