Cannot build android app on current stable flutter build

[Mithrandir2k18]

On current stable flutter commit I cannot build an android app using flutter_gamepad.

When building and running using VSCode I actually install an app without any warnings, but the app keeps crashing on a Samsung Galaxy10+ saying "App keeps stopping" on the device.

When attempting to build with Android Studio(latest), I get this error output:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.acu_remote_control, PID: 15345
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.acu_remote_control/com.example.acu_remote_control.MainActivity}: java.lang.UnsupportedOperationException: The new embedding does not support the old FlutterView.
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.UnsupportedOperationException: The new embedding does not support the old FlutterView.
        at io.flutter.embedding.engine.plugins.shim.ShimRegistrar.view(ShimRegistrar.java:82)
        at com.example.flutter_gamepad.FlutterGamepadPlugin$Companion.registerWith(FlutterGamepadPlugin.kt:61)
        at com.example.flutter_gamepad.FlutterGamepadPlugin.registerWith(Unknown Source:2)
        at io.flutter.plugins.GeneratedPluginRegistrant.registerWith(GeneratedPluginRegistrant.java:18)
        at com.example.acu_remote_control.MainActivity.configureFlutterEngine(MainActivity.kt:10)
        at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onAttach(FlutterActivityAndFragmentDelegate.java:185)
        at io.flutter.embedding.android.FlutterActivity.onCreate(FlutterActivity.java:418)
        at android.app.Activity.performCreate(Activity.java:7802)
        at android.app.Activity.performCreate(Activity.java:7791)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016) 
        at android.os.Handler.dispatchMessage(Handler.java:107) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7356) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) 
I/Process: Sending signal. PID: 15345 SIG: 9
Process 15345 terminated.

[Mithrandir2k18]

@lynn do you have a fix for Upgrading the AndroidKeyprocessor after Flutter 1.12?
Class Definition
Deprecated Call to FlutterView to be able to exchange the key processors.

[PercyJW-2]

I just found flutter/flutter#10769 (comment).
Maybe it could be used to implement gamepad support without the registrar from registerWith method.