Håkon Nilsen created CB-7104:
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Summary: Plugin results not transmitted back to devices (specially
Samsung S4 and S5)
Key: CB-7104
URL: https://issues.apache.org/jira/browse/CB-7104
Project: Apache Cordova
Issue Type: Bug
Components: Android
Affects Versions: 3.3.0
Reporter: Håkon Nilsen
Priority: Blocker
Our app relies heavily on Cordova plugins for communicating between JavaScript
and native, and on certain devices these messages are not consistently sent
back to the JavaScript API.
I've tracked it down to a problem with webView.setNetworkAvailable()-usage in
NativeToJsMessageQueue.java, and I have a suggestion for a fix.
The problem with the current setup of (3.3.0) of NativeToJsMessageQueue seems
to be that the online flag is toggled every time a plugin is fired, while
webView.setNetworkAvailable(online) is only fired if the queue has messages.
Since not all plugins have messages, the online flag can be toggled twice, and
the online flag will be i.e. false for each time the command is run - which
means Cordova won't send any messages.
On Samsung S4 and S5 the hideKeyboard-event is slower or faster than other
devices, which results in a doble toggle of the online flag. This leads to the
following command being sent when there is a message in the queue:
webView.setNetworkAvailable(false); // first message
webView.setNetworkAvailable(false); // second message, which is not being sent
webView.setNetworkAvailable(false); // third message, which will be sent
For us it has been a terrible blocker, and I've made a change to the
OnlineEventsBridgeMode in NativeToJsMessageQueue.java that addresses this.
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