feat: Initial clean release of CHM

packages/app-mobile/components/base-screen.ts

@@ -0,0 +1,20 @@
+import * as React from 'react';
+import { StyleSheet } from 'react-native';
+import { themeStyle } from './global-style';
+
+const rootStyles_: Record<number, ReturnType<typeof StyleSheet.create>> = {};
+
+class BaseScreenComponent<Props, State> extends React.Component<Props, State> {
+
+	protected rootStyle(themeId: number) {
+		const theme = themeStyle(themeId);
+		if (rootStyles_[themeId]) return rootStyles_[themeId];
+		rootStyles_[themeId] = StyleSheet.create({
+			root: theme.rootStyle,
+		});
+		return rootStyles_[themeId];
+	}
+}
+
+export { BaseScreenComponent };
+export default BaseScreenComponent;