Show screen props warning only once. Fixes #258

src/views/SceneView.js

@@ -11,11 +11,12 @@ import type {
 
 type Props = {
   screenProps?: {};
-  hideScreenPropsWarning?: boolean;
   navigation: NavigationScreenProp<NavigationState, NavigationAction>;
   component: ReactClass<*>;
 };
 
+let screenPropsWarningShown = false;
+
 export default class SceneView extends PureComponent<void, Props, void> {
   static childContextTypes = {
     navigation: React.PropTypes.object.isRequired,
@@ -30,18 +31,18 @@ export default class SceneView extends PureComponent<void, Props, void> {
   }
 
   componentWillMount() {
-    if (this.props.screenProps !== undefined && !this.props.hideScreenPropsWarning) {
+    if (this.props.screenProps !== undefined && !screenPropsWarningShown) {
       console.warn(
         'Behaviour of screenProps has changed from initial beta. ' +
         'Components will now receive it as `this.props.screenProps` instead.\n' +
-        'Pass `hideScreenPropsWarning` to hide this warning.'
+        'This warning will be removed in future.'
       );
+      screenPropsWarningShown = true;
     }
   }
 
   render() {
     const {
-      hideScreenPropsWarning,
       screenProps,
       navigation,
       component: Component,
@@ -49,7 +50,6 @@ export default class SceneView extends PureComponent<void, Props, void> {
 
     return (
       <Component
-        hideScreenPropsWarning={hideScreenPropsWarning}
         screenProps={screenProps}
         navigation={navigation}
       />