demo app hanoicomputer home category productdetail cart

components/Themed.tsx

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+import * as React from 'react';
+import { Text as DefaultText, View as DefaultView } from 'react-native';
+
+import Colors from '../constants/Colors';
+import useColorScheme from '../hooks/useColorScheme';
+
+export function useThemeColor(
+  props: { light?: string; dark?: string },
+  colorName: keyof typeof Colors.light & keyof typeof Colors.dark
+) {
+  const theme = useColorScheme();
+  const colorFromProps = props[theme];
+
+  if (colorFromProps) {
+    return colorFromProps;
+  } else {
+    return Colors[theme][colorName];
+  }
+}
+
+type ThemeProps = {
+  lightColor?: string;
+  darkColor?: string;
+};
+
+export type TextProps = ThemeProps & DefaultText['props'];
+export type ViewProps = ThemeProps & DefaultView['props'];
+
+export function Text(props: TextProps) {
+  const { style, lightColor, darkColor, ...otherProps } = props;
+  const color = useThemeColor({ light: lightColor, dark: darkColor }, 'text');
+
+  return <DefaultText style={[{ color }, style]} {...otherProps} />;
+}
+
+export function View(props: ViewProps) {
+  const { style, lightColor, darkColor, ...otherProps } = props;
+  const backgroundColor = useThemeColor({ light: lightColor, dark: darkColor }, 'background');
+
+  return <DefaultView style={[{ backgroundColor }, style]} {...otherProps} />;
+}