flutter briantree version 4.0.0 crash in android

[TuanMai777]

Hello,
I am using flutter version 4.0.0
I am using method
final request = BraintreeCreditCardRequest(
cardNumber: '4111111111111111',
expirationMonth: '12',
expirationYear: '2021',
cvv: '123',
);
final result = await Braintree.tokenizeCreditCard(
tokenizationKey,
request,
);

I got the error below,

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(error, Unable to find explicit activity class {com.your-company.your-app/com.example.flutter_braintree.FlutterBraintreeCustom}; have you declared this activity in your AndroidManifest.xml, or does your intent not match its declared ?, null, android.content.ActivityNotFoundException: Unable to find explicit activity class {com.your-company.your-app/com. example.flutter_braintree.FlutterBraintreeCustom}; have you declared this activity in your AndroidManifest.xml, or does your intent not match its declared ?

[BunnyBuddy]

In your code (if you have this as an external dependency) at this location,

flutter-braintree/android/src/main/AndroidManifest.xml

replace the code under application tag to below,

<application>
    <activity android:name=".FlutterBraintreeCustom"
        android:exported="true"
        android:theme="@style/bt_transparent_activity">
    </activity>
    <activity android:name=".DropInActivity"
        android:theme="@style/bt_transparent_activity">
    </activity>
</application>

And then do (for android studio)
flutter clean
invalidate cache and restart

[TuanMai777]

Hi @BunnyBuddy

I ran the code with the example given in the plugin but the app crashed with paypal
When I click the "PAYPAL VAULT FLOW" button
Then go to the "checkout.paypal.com" screen
I clicked the blue button "Proceed with Sandbox Purchase"
The app crashes with the error given

Worker result FAILURE for Work [ id=454e0e52-d3a8-4109-8625-dcf1661ded4d, tags={ com.braintreepayments.api.AnalyticsUploadWorker } ]
D/AndroidRuntime(31400): Shutting down VM
E/AndroidRuntime(31400): FATAL EXCEPTION: main
E/AndroidRuntime(31400): Process: com.example.flutter_braintree_example, PID: 31400
E/AndroidRuntime(31400): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.flutter_braintree_example/com.braintreepayments.api.DropInActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.os.Bundle.setClassLoader(java.lang.ClassLoader)' on a null object reference

[TuanMai777]

Hi @BunnyBuddy
The issue will probably be the same
#153