InAppBrowserActivity.onCreate NullPointerException - Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference

[ycv005]

• I have read the README
• I have already searched for the same problem
• I have read and done the setup for Android: IMPORTANT Note for Android and iOS and IMPORTANT Note for Android
• I have read and done the setup for iOS: IMPORTANT Note for Android and iOS and IMPORTANT Note for iOS
• I have ran the sample app and it does not work there

Environment

Technology	Version
Flutter version	1.22.5
Plugin version	5.0 (mater branch from github)
Android version	8.1.0
iOS version	NA
Xcode version	NA

Device information:

Description

App got crash while running the app.

Expected behavior:
App shouldn't be crash.

Current behavior:

Here is the log from the Firebase Crashlytics-

HIGHLIGHTED ERROR

InAppBrowserActivity.java line 16
com.pichillilorenzo.flutter_inappwebview.InAppBrowser.InAppBrowserActivity.onCreate

Fatal Exception: java.lang.RuntimeException
Unable to start activity ComponentInfo{com.example.app/com.pichillilorenzo.flutter_inappwebview.InAppBrowser.InAppBrowserActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2778)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:807)
Caused by java.lang.NullPointerException
Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
com.pichillilorenzo.flutter_inappwebview.InAppBrowser.InAppBrowserActivity.onCreate (InAppBrowserActivity.java:16)
android.app.Activity.performCreate (Activity.java:7009)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:807)

ChromeCustomTabsActivity.java line 18
com.pichillilorenzo.flutter_inappwebview.ChromeCustomTabs.ChromeCustomTabsActivity.onCreate

Fatal Exception: java.lang.RuntimeException
Unable to start activity ComponentInfo{com.example.app/com.pichillilorenzo.flutter_inappwebview.ChromeCustomTabs.ChromeCustomTabsActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2778)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:807)
Caused by java.lang.NullPointerException
Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
com.pichillilorenzo.flutter_inappwebview.ChromeCustomTabs.ChromeCustomTabsActivity.onCreate (ChromeCustomTabsActivity.java:18)
android.app.Activity.performCreate (Activity.java:7009)
android.app.Activity.performCreate (Activity.java:7000)
android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1214)
android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2731)
android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2856)
android.app.ActivityThread.-wrap11 (ActivityThread.java)
android.app.ActivityThread$H.handleMessage (ActivityThread.java:1589)
android.os.Handler.dispatchMessage (Handler.java:106)
android.os.Looper.loop (Looper.java:164)
android.app.ActivityThread.main (ActivityThread.java:6494)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:438)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:807)

If you need more info let me know.

@pichillilorenzo please fix it before next release of the plugin. Highly appreciated for the fix

[slorop41314]

Same issue here

[pichillilorenzo]

@slorop41314 Are you using the latest version available from pub.dev? could you post the error logs here?

[ycv005]

Plugin version- flutter_inappwebview: ^5.1.0+4
Flutter version- 2.0.1

@pichillilorenzo Hey, I found again a crash on firebase with latest version of the plugin, pleasee have a look at it, if needed, I will share more info from crashlytics

[pichillilorenzo]

@ycv005 Ok I checked that line of code but it doesn't make any sense to me. It's very strange.
It refers to the Bundle instance used to pass arguments to the InAppBrowser Android Activity when it's started/opened.
It's impossible that it's null because when the InAppBrowser Android Activity it's started, it always contains Bundle data (see InAppBrowserManager.open method in the Java native code), otherwise the InAppBrowser won't work properly.
One thing I can think of is that the InAppBrowserActivity.onCreate is called twice, but there is already a check for that.
How do you use InAppBrowser in your Application? Do you use hide and show methods? Are you calling it from Java native code or from Flutter??
Do you have some reproducible steps? Thanks

[ycv005]

@pichillilorenzo I have only used InAppWebView widget in my tree. I haven't implemented InAppBrowser and either of their methods. No, I am not calling from Java native code or from flutter.

[pichillilorenzo]

You can try new version 5.2.0

[dkunkic]

@pichillilorenzo Hi, I have a similar crash on firebase. 
Upgrading the version didn’t change anything. 
Can you please have a look at the issue.

Plugin version - flutter_inappwebview: 5.3.0
Flutter version - 2.0.3

[pichillilorenzo]

@dkunkic This is another issue related to the ChromeSafariBrowser class, please open a new issue and don't comment on different issues.
Also, post the full crash logs and not just a screenshot and a code example that can replicate this issue, otherwise it's impossible to me to help you. Thanks

[ZimmerZhou]

This can be reproduced by starting InAppBrowserActivity by shell，It may happen in automated testing

[pichillilorenzo]

@ZimmerZhou I have automated integration tests and these errors don't occur at all. Could you elaborate more? Make a reproducible example with steps, please.

[ZimmerZhou]

@ZimmerZhou I have automated integration tests and these errors don't occur at all. Could you elaborate more? Make a reproducible example with steps, please.

Simply run "adb shell am start -n YOUR_PACKAGE_NAME/com.pichillilorenzo.flutter_inappwebview.InAppBrowser.InAppBrowserActivity",BTW,You need to set "exported = true" with InAppBrowserActivity，or you will get a permission error.

[pichillilorenzo]

@ZimmerZhou Well, you cannot simply start that activity like this. You MUST use the API of this plugin otherwise it won't work and you will have a null pointer exception, that is the correct behavior because if you start it this way, the InAppBrowserActivity will not have the right bundle data to make it work properly.
So, calling the activity in that way is not correct.

[ZimmerZhou]

@ZimmerZhou Well, that's correct. You cannot simply start that activity like this. You MUST use the API of this plugin otherwise it won't work and you will have a null pointer exception, that is the correct behavior because if you start it this way, the InAppBrowserActivity will not have the right bundle data to make it work properly.
So, calling the activity in that way is not correct.

I agree, but what if we can prevent exception by just adding a toast and finishing activity?

[pichillilorenzo]

Nope, if a null pointer exception is occurring, that's the correct behavior and that means you are doing something that is not correct, such as the example you made above. So, in that case, required bundle data is missing to make that activity work properly.
If you are receiving this error from your Dart/Flutter code, please post the code you are using, otherwise, I cannot help you more than this.

[niypoo]

Same issue with me ,
happened many times with different users ,

[Super-Bin]

Plugin version- flutter_inappwebview: ^5.3.2
Flutter version- 2.2.0
@pichillilorenzo Hi, I have a similar crash on firebase. 
Upgrading the version didn’t change anything. 
Can you please have a look at the issue.

[nietsmmar]

I got the same error! :( With lib verison ^5.3.2 and flutter 2.5.3.

Why is this issue closed?

[kamxy]

same issue

[macortesn]

Same issue :(. any update?

[pansitwattana]

I also got this crash error

flutter_inappwebview: ^5.3.2
Flutter version: 2.2.0

[MustafaGamalAbbas]

Same issue

[huangsir0]

same issue

[nietsmmar]

same issue

[mkucharski17]

Same issue