recyclerlistview+4.2.1.patch

diff --git a/node_modules/recyclerlistview/dist/reactnative/core/RecyclerListView.js b/node_modules/recyclerlistview/dist/reactnative/core/RecyclerListView.js
index 3ca4550..753c2f7 100644
--- a/node_modules/recyclerlistview/dist/reactnative/core/RecyclerListView.js
+++ b/node_modules/recyclerlistview/dist/reactnative/core/RecyclerListView.js
@@ -251,6 +251,7 @@ var RecyclerListView = /** @class */ (function (_super) {
         this._virtualRenderer.setOptimizeForAnimations(false);
     };
     RecyclerListView.prototype.componentDidMount = function () {
+        this._isMounted = true;
         if (this._initComplete) {
             this._processInitialOffset();
             this._processOnEndReached();
diff --git a/node_modules/recyclerlistview/dist/reactnative/platform/reactnative/scrollcomponent/ScrollComponent.js b/node_modules/recyclerlistview/dist/reactnative/platform/reactnative/scrollcomponent/ScrollComponent.js
index 18c5ae2..4ca00f2 100644
--- a/node_modules/recyclerlistview/dist/reactnative/platform/reactnative/scrollcomponent/ScrollComponent.js
+++ b/node_modules/recyclerlistview/dist/reactnative/platform/reactnative/scrollcomponent/ScrollComponent.js
@@ -49,12 +49,13 @@ var ScrollComponent = /** @class */ (function (_super) {
             }
         };
         _this._onLayout = function (event) {
-            if (_this._height !== event.nativeEvent.layout.height || _this._width !== event.nativeEvent.layout.width) {
-                _this._height = event.nativeEvent.layout.height;
+            const estimatedHeightSize = _this.props.estimatedHeightSize || event.nativeEvent.layout.height;
+            if (_this._height !== estimatedHeightSize || _this._width !== event.nativeEvent.layout.width) {
+                _this._height = estimatedHeightSize;
                 _this._width = event.nativeEvent.layout.width;
                 if (_this.props.onSizeChanged) {
                     _this._isSizeChangedCalledOnce = true;
-                    _this.props.onSizeChanged(event.nativeEvent.layout);
+                    _this.props.onSizeChanged(__assign(__assign({}, event.nativeEvent.layout), { height: estimatedHeightSize }));
                 }
             }
             if (_this.props.onLayout) {
diff --git a/node_modules/recyclerlistview/src/core/scrollcomponent/BaseScrollComponent.tsx b/node_modules/recyclerlistview/src/core/scrollcomponent/BaseScrollComponent.tsx
index ee2952a..fc4326a 100644
--- a/node_modules/recyclerlistview/src/core/scrollcomponent/BaseScrollComponent.tsx
+++ b/node_modules/recyclerlistview/src/core/scrollcomponent/BaseScrollComponent.tsx
@@ -18,6 +18,7 @@ export interface ScrollComponentProps {
     renderContentContainer?: (props?: object, children?: React.ReactNode) => React.ReactNode | null;
     renderAheadOffset: number;
     layoutSize?: Dimension;
+    estimatedHeightSize?: number;
 }
 export default abstract class BaseScrollComponent extends React.Component<ScrollComponentProps, {}> {
     public abstract scrollTo(x: number, y: number, animate: boolean): void;