[CB-7261] Unable to switch to ONLINE_EVENT Native to JS mode after switching to POLLING

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Component/s: cordova-android

Environment

Nexus 4 running Android (KitKat) 4.4.4

• Assignee: Andrew Grieve
• Reporter: Nathan Smith
• Created: 05/Aug/14 03:42
• Updated: 23/Aug/18 07:19
• Resolved: 07/Aug/14 20:20

Description

Switching between ONLINE_EVENT and POLLING Native to JS modes on Android results in the following exception:

08-05 13:18:29.729: DEBUG/JsMessageQueue(25805): Set native->JS mode to 2
08-05 13:18:29.739: WARN/WebView(25805): java.lang.Throwable: A WebView method was called on thread 'JavaBridge'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {41ec6650} called on Looper (JavaBridge, tid 3688) {41ed39e8}, FYI main Looper is Looper (main, tid 1) {41ec6650})
        at android.webkit.WebView.checkThread(WebView.java:2072)
        at android.webkit.WebView.setNetworkAvailable(WebView.java:705)
        at org.apache.cordova.NativeToJsMessageQueue$OnlineEventsBridgeMode.reset(NativeToJsMessageQueue.java:320)
        at org.apache.cordova.NativeToJsMessageQueue.setBridgeMode(NativeToJsMessageQueue.java:105)
        at org.apache.cordova.ExposedJsApi.setNativeToJsBridgeMode(ExposedJsApi.java:69)
        at com.android.org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
        at com.android.org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:24)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:136)
        at android.os.HandlerThread.run(HandlerThread.java:61)
08-05 13:18:29.749: WARN/System.err(25805): java.lang.RuntimeException: java.lang.Throwable: A WebView method was called on thread 'JavaBridge'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {41ec6650} called on Looper (JavaBridge, tid 3688) {41ed39e8}, FYI main Looper is Looper (main, tid 1) {41ec6650})
08-05 13:18:29.749: WARN/System.err(25805): at android.webkit.WebView.checkThread(WebView.java:2082)
08-05 13:18:29.749: WARN/System.err(25805): at android.webkit.WebView.setNetworkAvailable(WebView.java:705)
08-05 13:18:29.749: WARN/System.err(25805): at org.apache.cordova.NativeToJsMessageQueue$OnlineEventsBridgeMode.reset(NativeToJsMessageQueue.java:320)
08-05 13:18:29.749: WARN/System.err(25805): at org.apache.cordova.NativeToJsMessageQueue.setBridgeMode(NativeToJsMessageQueue.java:105)
08-05 13:18:29.749: WARN/System.err(25805): at org.apache.cordova.ExposedJsApi.setNativeToJsBridgeMode(ExposedJsApi.java:69)
08-05 13:18:29.749: WARN/System.err(25805): at com.android.org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
08-05 13:18:29.749: WARN/System.err(25805): at com.android.org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:24)
08-05 13:18:29.749: WARN/System.err(25805): at android.os.Handler.dispatchMessage(Handler.java:102)
08-05 13:18:29.749: WARN/System.err(25805): at android.os.Looper.loop(Looper.java:136)
08-05 13:18:29.749: WARN/System.err(25805): at android.os.HandlerThread.run(HandlerThread.java:61)
08-05 13:18:29.749: WARN/System.err(25805): Caused by: java.lang.Throwable: A WebView method was called on thread 'JavaBridge'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {41ec6650} called on Looper (JavaBridge, tid 3688) {41ed39e8}, FYI main Looper is Looper (main, tid 1) {41ec6650})
08-05 13:18:29.749: WARN/System.err(25805): at android.webkit.WebView.checkThread(WebView.java:2072)
08-05 13:18:29.749: WARN/System.err(25805): ... 9 more
08-05 13:18:29.749: DEBUG/CordovaLog(25805): file:///android_asset/www/app/app.js: Line 30018 : processMessage failed: Error: Error: Error calling method on NPObject.
08-05 13:18:29.749: INFO/chromium(25805): [INFO:CONSOLE(30018)] "processMessage failed: Error: Error: Error calling method on NPObject.", source: file:///android_asset/www/app/app.js (30018)
08-05 13:18:29.759: DEBUG/CordovaLog(25805): file:///android_asset/www/app/app.js: Line 30018 : processMessage failed: Stack: Error: Error calling method on NPObject.
        at Function.androidExec.setNativeToJsBridgeMode (file:///android_asset/www/cordova.js:993:29)
        at _.extend._androidResult (file:///android_asset/www/app/app.js:30433:33)
        at file:///android_asset/www/app/app.js:587:28
        at Object.cordova.callbackFromNative (file:///android_asset/www/cordova.js:292:54)
        at processMessage (file:///android_asset/www/cordova.js:1039:21)
        at Function.androidExec.processMessages (file:///android_asset/www/cordova.js:1076:13)
        at pollOnce (file:///android_asset/www/cordova.js:944:17)
        at pollingTimerFunc (file:///android_asset/www/cordova.js:949:9)
08-05 13:18:29.759: INFO/chromium(25805): [INFO:CONSOLE(30018)] "processMessage failed: Stack: Error: Error calling method on NPObject.
        at Function.androidExec.setNativeToJsBridgeMode (file:///android_asset/www/cordova.js:993:29)
        at _.extend._androidResult (file:///android_asset/www/app/app.js:30433:33)
        at file:///android_asset/www/app/app.js:587:28
        at Object.cordova.callbackFromNative (file:///android_asset/www/cordova.js:292:54)
        at processMessage (file:///android_asset/www/cordova.js:1039:21)
        at Function.androidExec.processMessages (file:///android_asset/www/cordova.js:1076:13)
        at pollOnce (file:///android_asset/www/cordova.js:944:17)
        at pollingTimerFunc (file:///android_asset/www/cordova.js:949:9)", source: file:///android_asset/www/app/app.js (30018)
08-05 13:18:29.759: DEBUG/CordovaLog(25805): file:///android_asset/www/app/app.js: Line 30018 : processMessage failed: Message: S01 VerifyCertificateService774585263 sOK
08-05 13:18:29.759: INFO/chromium(25805): [INFO:CONSOLE(30018)] "processMessage failed: Message: S01 VerifyCertificateService774585263 sOK", source: file:///android_asset/www/app/app.js (30018)

webView.setNetworkAvailable(true); in OnlineEventsBridgeMode.reset() needs to run in the UI Thread.