add dispatchKeyEvent back to deprecated FlutterView

Author: gspencergoog

shell/platform/android/io/flutter/view/FlutterView.java

@@ -21,6 +21,7 @@
 import android.util.AttributeSet;
 import android.util.SparseArray;
 import android.view.DisplayCutout;
+import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.PointerIcon;
 import android.view.Surface;
@@ -267,6 +268,23 @@ public DartExecutor getDartExecutor() {
     return dartExecutor;
   }
 
+  @Override
+  public boolean dispatchKeyEvent(KeyEvent event) {
+    Log.e(TAG, "dispatchKeyEvent: " + event.toString());
+    if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
+      // Tell Android to start tracking this event.
+      getKeyDispatcherState().startTracking(event, this);
+    } else if (event.getAction() == KeyEvent.ACTION_UP) {
+      // Stop tracking the event.
+      getKeyDispatcherState().handleUpEvent(event);
+    }
+    // If the key processor doesn't handle it, then send it on to the
+    // superclass. The key processor will typically handle all events except
+    // those where it has re-dispatched the event after receiving a reply from
+    // the framework that the framework did not handle it.
+    return (isAttached() && androidKeyProcessor.onKeyEvent(event)) || super.dispatchKeyEvent(event);
+  }
+
   public FlutterNativeView getFlutterNativeView() {
     return mNativeView;
   }