Android ContentBlocker - java.lang.NullPointerException ContentBlockerTrigger resource type

[KarmaEstudio]

Hi.

Thank you for this amazing plugin.

Do you have examples of use of ContentBlocker?

I´m trying to use it for block content but I get errors.

This is my code:

contentBlockers: [
                        ContentBlocker(
                          trigger: ContentBlockerTrigger(
                            urlFilter: widget.url,
                          ),
                          action: ContentBlockerAction(
                            type: ContentBlockerActionType.CSS_DISPLAY_NONE,
                            selector: 'h1.title,div.site-trigger,div.leaderboard',
                          ),
                        ),
                      ],

And I get this exception:

E/MethodChannel#flutter/platform_views(13038): Failed to handle method call
E/MethodChannel#flutter/platform_views(13038): java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference
E/MethodChannel#flutter/platform_views(13038): 	at com.pichillilorenzo.flutter_inappwebview.ContentBlocker.ContentBlockerTrigger.fromMap(ContentBlockerTrigger.java:44)
E/MethodChannel#flutter/platform_views(13038): 	at com.pichillilorenzo.flutter_inappwebview.InAppWebView.InAppWebView.prepare(InAppWebView.java:814)
E/MethodChannel#flutter/platform_views(13038): 	at com.pichillilorenzo.flutter_inappwebview.InAppWebView.FlutterWebView.<init>(FlutterWebView.java:92)
E/MethodChannel#flutter/platform_views(13038): 	at com.pichillilorenzo.flutter_inappwebview.InAppWebView.FlutterWebViewFactory.create(FlutterWebViewFactory.java:28)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.plugin.platform.SingleViewPresentation.onCreate(SingleViewPresentation.java:186)
E/MethodChannel#flutter/platform_views(13038): 	at android.app.Dialog.dispatchOnCreate(Dialog.java:423)
E/MethodChannel#flutter/platform_views(13038): 	at android.app.Dialog.show(Dialog.java:317)
E/MethodChannel#flutter/platform_views(13038): 	at android.app.Presentation.show(Presentation.java:250)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.plugin.platform.VirtualDisplayController.<init>(VirtualDisplayController.java:95)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.plugin.platform.VirtualDisplayController.create(VirtualDisplayController.java:48)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.plugin.platform.PlatformViewsController$1.createVirtualDisplayForPlatformView(PlatformViewsController.java:170)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.embedding.engine.systemchannels.PlatformViewsChannel$1.create(PlatformViewsChannel.java:104)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.embedding.engine.systemchannels.PlatformViewsChannel$1.onMethodCall(PlatformViewsChannel.java:59)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:230)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:85)
E/MethodChannel#flutter/platform_views(13038): 	at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:692)
E/MethodChannel#flutter/platform_views(13038): 	at android.os.MessageQueue.nativePollOnce(Native Method)
E/MethodChannel#flutter/platform_views(13038): 	at android.os.MessageQueue.next(MessageQueue.java:336)
E/MethodChannel#flutter/platform_views(13038): 	at android.os.Looper.loop(Looper.java:181)
E/MethodChannel#flutter/platform_views(13038): 	at android.app.ActivityThread.main(ActivityThread.java:7560)
E/MethodChannel#flutter/platform_views(13038): 	at java.lang.reflect.Method.invoke(Native Method)
E/MethodChannel#flutter/platform_views(13038): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
E/MethodChannel#flutter/platform_views(13038): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
I/Ads     (13038): Ad failed to load : 3
E/flutter (13038): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: PlatformException(error, Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference, null)
E/flutter (13038): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:572:7)
E/flutter (13038): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:161:18)
E/flutter (13038): <asynchronous suspension>
E/flutter (13038): #2      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:334:12)
E/flutter (13038): #3      TextureAndroidViewController._sendCreateMessage (package:flutter/src/services/platform_views.dart:1039:54)
E/flutter (13038): #4      AndroidViewController.create (package:flutter/src/services/platform_views.dart:746:11)
E/flutter (13038): #5      TextureAndroidViewController.create (package:flutter/src/services/platform_views.dart:1017:34)
E/flutter (13038): #6      TextureAndroidViewController.setSize (package:flutter/src/services/platform_views.dart:1001:14)
E/flutter (13038): #7      RenderAndroidView._sizePlatformView (package:flutter/src/rendering/platform_view.dart:176:29)
E/flutter (13038): #8      RenderAndroidView.performResize (package:flutter/src/rendering/platform_view.dart:157:5)
E/flutter (13038): #9      RenderObject.layout (package:flutter/src/rendering/object.dart:1748:9)
E/flutter (13038): #10     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #11     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #12     RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:209:11)
E/flutter (13038): #13     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #14     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #15     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #16     RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:209:11)
E/flutter (13038): #17     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #18     RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:827:17)
E/flutter (13038): #19     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #20     MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:173:11)
E/flutter (13038): #21     _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:495:7)
E/flutter (13038): #22     MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:242:7)
E/flutter (13038): #23     RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:401:14)
E/flutter (13038): #24     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #25     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #26     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #27     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #28     _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1269:11)
E/flutter (13038): #29     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #30     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #31     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #32     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #33     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #34     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #35     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #36     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #37     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #38     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #39     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)
E/flutter (13038): #40     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:13)
E/flutter (13038): #41     RenderObject.layout (package:flutter/src/rendering/object.dart:1769:7)

Thank you!

[CarmenLexa]

I have the same error, could you solve it?

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