@fruits-chain/react-native-xiaoshu/lib/module/nav-bar/index.js

React Native UI library

import React, { memo } from 'react';
import { View, StyleSheet, TouchableOpacity } from 'react-native';
import { useTheme, widthStyle } from '../theme';
import { ArrowLeftOutline } from '../icon';
import { getDefaultValue, renderTextLikeJSX, isDef } from '../helpers';
import { createStyles } from './style';
const BACK_ARROW_HIT_SLOP = {
  left: 10,
  right: 10 // top: 0,
  // bottom: 0,

};
/**
 * NavBar 导航栏
 */

const NavBar = _ref => {
  let {
    style,
    leftStyle,
    rightStyle,
    titleTextStyle,
    title,
    leftExtra,
    rightExtra,
    showBackArrow = true,
    backArrowColor,
    backArrowSize,
    bordered = true,
    hairline = false,
    onPressBackArrow
  } = _ref;
  const THEME_VAR = useTheme();
  const STYLES = widthStyle(THEME_VAR, createStyles);
  backArrowColor = getDefaultValue(backArrowColor, THEME_VAR.nav_bar_icon_color);
  backArrowSize = getDefaultValue(backArrowSize, THEME_VAR.nav_bar_arrow_size);
  const titleJSX = renderTextLikeJSX(title, [STYLES.title_text, titleTextStyle]);
  const borderBottomWidth = hairline ? StyleSheet.hairlineWidth : 1;
  return /*#__PURE__*/React.createElement(View, {
    style: [STYLES.bar, bordered ? {
      borderBottomColor: THEME_VAR.border_color,
      borderBottomWidth
    } : null, style]
  }, showBackArrow || isDef(leftExtra) ? /*#__PURE__*/React.createElement(View, {
    style: [STYLES.left, leftStyle]
  }, showBackArrow ? /*#__PURE__*/React.createElement(TouchableOpacity, {
    style: STYLES.back_arrow,
    onPress: onPressBackArrow,
    activeOpacity: THEME_VAR.active_opacity,
    hitSlop: BACK_ARROW_HIT_SLOP
  }, /*#__PURE__*/React.createElement(ArrowLeftOutline, {
    size: backArrowSize,
    color: backArrowColor
  })) : null, leftExtra) : null, isDef(rightExtra) ? /*#__PURE__*/React.createElement(View, {
    style: [STYLES.right, rightStyle]
  }, rightExtra) : null, titleJSX);
};

export default /*#__PURE__*/memo(NavBar);
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