[android] Add rebind method

android/src/main/java/com/reactnativecommunity/webview/RNCWebView.java

@@ -1,5 +1,6 @@
 package com.reactnativecommunity.webview;
 
+import android.view.View;
 import android.webkit.WebView;
 import android.widget.FrameLayout;
 
@@ -8,20 +9,77 @@
 import com.facebook.common.logging.FLog;
 import com.facebook.react.uimanager.ThemedReactContext;
 
+import java.util.Map;
+
 public class RNCWebView extends FrameLayout {
   private static final String TAG = "RNCWebView";
   public static final int INVALID_VIEW_ID = -1;
-
+  private String webViewKey;
   private RNCWebViewManager.InternalWebView internalWebView;
 
   public RNCWebView(ThemedReactContext reactContext) {
     super(reactContext);
+
+    // There is an issue with react-native where if a view is moved
+    // the parent and children views are not resized
+    // Since we are moving views outside of React, the layout request might be dropped
+    // on a normal add/remove view
+    // By calling .layout directly on the parent, it'll force the layout change
+    // See this issue for more context: https://github.com/facebook/react-native/issues/17968
+    setOnHierarchyChangeListener(new OnHierarchyChangeListener() {
+      @Override
+      public void onChildViewAdded(View parent, View child) {
+        if (parent != null) {
+          parent.measure(
+            MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.EXACTLY),
+            MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.EXACTLY)
+          );
+          parent.layout(0, 0, parent.getMeasuredWidth(), parent.getMeasuredHeight());
+        }
+      }
+
+      @Override
+      public void onChildViewRemoved(View parent, View child) {}
+    });
+  }
+
+  @Override
+  protected void onAttachedToWindow() {
+    super.onAttachedToWindow();
+
+    if (webViewKey == null) return;
+
+    Map<String, WebView> internalWebViewMap = RNCWebViewMapManager.INSTANCE.getInternalWebViewMap();
+    Map<String, RNCWebView> rncWebViewMap = RNCWebViewMapManager.INSTANCE.getRncWebViewMap();
+
+    // If there is an existing RNCWebView that has an internal webview, re-attach it to this view
+    if (rncWebViewMap.containsKey(webViewKey)) {
+      RNCWebView existingView = rncWebViewMap.get(webViewKey);
+      RNCWebViewManager.InternalWebView existingInternalWebView = existingView.detachWebView();
+      attachWebView(existingInternalWebView);
+
+      // If there is a detached internal webview attach it to this RNCWebView
+    } else if (internalWebViewMap.containsKey(webViewKey)) {
+      RNCWebViewManager.InternalWebView webView = (RNCWebViewManager.InternalWebView) internalWebViewMap.get(webViewKey);
+      attachWebView(webView);
+    }
+
+    if (internalWebView != null) {
+      internalWebView.setWebViewKey(webViewKey);
+      RNCWebViewMapManager.INSTANCE.getViewIdMap().put(internalWebView.getId(), this.getId());
+      internalWebViewMap.put(webViewKey, internalWebView);
+      rncWebViewMap.put(webViewKey, this);
+    }
   }
 
   public interface Action {
     void apply(RNCWebViewManager.InternalWebView webView);
   }
 
+  public void setWebViewKey(String webViewKey) {
+    this.webViewKey = webViewKey;
+  }
+
   /**
    * Attaches a {@link RNCWebViewManager.InternalWebView} to the RNCWebView parent
    * Throws an exception if the provided internal webView is already attached to a parent