[Android] setDimens on ViewNodes for autofill (#18444)

shell/platform/android/io/flutter/plugin/editing/TextInputPlugin.java

@@ -506,6 +506,21 @@ public class TextInputPlugin {
       child.setAutofillHints(autofill.hints);
       child.setAutofillType(View.AUTOFILL_TYPE_TEXT);
       child.setVisibility(View.VISIBLE);
+
+      // Some autofill services expect child structures to be visible.
+      // Reports the real size of the child if it's the current client.
+      if (triggerIdentifier.hashCode() == autofillId && lastClientRect != null) {
+        child.setDimens(
+            lastClientRect.left,
+            lastClientRect.top,
+            0,
+            0,
+            lastClientRect.width(),
+            lastClientRect.height());
+      } else {
+        // Reports a fake dimension that's still visible.
+        child.setDimens(0, 0, 0, 0, 1, 1);
+      }
     }
   }
 

shell/platform/android/test/io/flutter/plugin/editing/TextInputPluginTest.java

@@ -3,6 +3,7 @@ package io.flutter.plugin.editing;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.AdditionalMatchers.aryEq;
+import static org.mockito.AdditionalMatchers.geq;
 import static org.mockito.Matchers.anyInt;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.eq;
@@ -479,8 +480,11 @@ public class TextInputPluginTest {
 
     verify(children[0]).setAutofillId(any(), eq("1".hashCode()));
     verify(children[0]).setAutofillHints(aryEq(new String[] {"HINT1"}));
+    verify(children[0]).setDimens(anyInt(), anyInt(), anyInt(), anyInt(), geq(0), geq(0));
+
     verify(children[1]).setAutofillId(any(), eq("2".hashCode()));
     verify(children[1]).setAutofillHints(aryEq(new String[] {"HINT2", "EXTRA"}));
+    verify(children[1]).setDimens(anyInt(), anyInt(), anyInt(), anyInt(), geq(0), geq(0));
   }
 
   @Test
@@ -523,6 +527,8 @@ public class TextInputPluginTest {
 
     verify(children[0]).setAutofillId(any(), eq("1".hashCode()));
     verify(children[0]).setAutofillHints(aryEq(new String[] {"HINT1"}));
+    // Verifies that the child has a non-zero size.
+    verify(children[0]).setDimens(anyInt(), anyInt(), anyInt(), anyInt(), geq(0), geq(0));
   }
 
   @Implements(InputMethodManager.class)