├── .gitignore ├── LICENSE ├── README.md ├── index.js ├── package.json └── src └── index.js /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # React Native Scrolling Menu 2 | > A horizontal scrolling menu for React Native. 3 | 4 | [![npm version](https://badge.fury.io/js/react-native-scrolling-menu.svg)](https://badge.fury.io/js/react-native-scrolling-menu) 5 | 6 | ![Screenshot](https://drive.google.com/uc?export=view&id=0BwAfqxmTWrImakRNWTBZZklBNmc) 7 | 8 | ## Installation 9 | `npm install --save react-native-scrolling-menu` 10 | 11 | ## React Native 12 | ```JavaScript 13 | var ScrollingMenu = require('react-native-scrolling-menu'); 14 | ``` 15 | 16 | ## Usage 17 | ```JavaScript 18 | let items = ['Menu Item 1','Menu Item 2','Menu Item 3','Menu Item 4','Menu Item 5']; 19 | 20 | onClick(itemIndex) { 21 | console.log("Selected: " + items[itemIndex]); 22 | } 23 | 24 | render() { 25 | return ( 26 | 33 | ); 34 | } 35 | ``` 36 | 37 | ## Props 38 | |Key |Type |Description | 39 | |--- |--- |--- | 40 | |`items`|Array|An array of items for the menu| 41 | |`callback`|Function(itemIndex)|The callback function sends the index of the menu item selected| 42 | |`backgroundColor`|String (HEX)|The background color of the menu| 43 | |`textColor`|String (HEX)|The text color prior to being selected| 44 | |`selectedTextColor`|String (HEX)|The text color of the selected item| 45 | |`itemSpacing`|Number|The number of pixels between the menu items| 46 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; }; 4 | 5 | var _createClass = function () { 6 | function defineProperties(target, props) { 7 | for (var i = 0; i < props.length; i++) { 8 | var descriptor = props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if ("value" in descriptor) descriptor.writable = true;Object.defineProperty(target, descriptor.key, descriptor); 9 | } 10 | }return function (Constructor, protoProps, staticProps) { 11 | if (protoProps) defineProperties(Constructor.prototype, protoProps);if (staticProps) defineProperties(Constructor, staticProps);return Constructor; 12 | }; 13 | }(); 14 | 15 | var _react = require('react'); 16 | 17 | var _react2 = _interopRequireDefault(_react); 18 | 19 | var _reactNative = require('react-native'); 20 | 21 | var _reactNative2 = _interopRequireDefault(_reactNative); 22 | 23 | function _interopRequireDefault(obj) { 24 | return obj && obj.__esModule ? obj : { default: obj }; 25 | } 26 | 27 | function _classCallCheck(instance, Constructor) { 28 | if (!(instance instanceof Constructor)) { 29 | throw new TypeError("Cannot call a class as a function"); 30 | } 31 | } 32 | 33 | function _possibleConstructorReturn(self, call) { 34 | if (!self) { 35 | throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); 36 | }return call && ((typeof call === 'undefined' ? 'undefined' : _typeof(call)) === "object" || typeof call === "function") ? call : self; 37 | } 38 | 39 | function _inherits(subClass, superClass) { 40 | if (typeof superClass !== "function" && superClass !== null) { 41 | throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass))); 42 | }subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } });if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; 43 | } 44 | 45 | var ScrollingMenu = function (_Component) { 46 | _inherits(ScrollingMenu, _Component); 47 | 48 | function ScrollingMenu(props) { 49 | _classCallCheck(this, ScrollingMenu); 50 | 51 | var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(ScrollingMenu).call(this, props)); 52 | 53 | _this.state = { 54 | selected: 0, 55 | widths: new Array(props.items.length), 56 | contentWidth: 0 57 | }; 58 | return _this; 59 | } 60 | 61 | _createClass(ScrollingMenu, [{ 62 | key: 'scroll', 63 | value: function scroll(itemNum) { 64 | var widthInFront = 0, 65 | currentItemWidth = this.state.widths[itemNum], 66 | screenWidth = _reactNative.Dimensions.get('window').width, 67 | contentWidth = this.state.contentWidth, 68 | self = this; 69 | 70 | for (var i = 0; i <= itemNum; i++) { 71 | if (i < itemNum) widthInFront += this.state.widths[i] + this.props.itemSpacing; 72 | } 73 | 74 | setTimeout(function () { 75 | window.requestAnimationFrame(function () { 76 | var x = widthInFront + self.props.itemSpacing - (screenWidth / 2 - currentItemWidth / 2); 77 | if (x < 0) { 78 | x = 0; 79 | } else if (x > contentWidth - screenWidth) { 80 | x = contentWidth - screenWidth; 81 | } 82 | if (self.props.noSetState) { 83 | if (self.props.noSetState.indexOf(self.props.items[itemNum]) === -1) { 84 | self.refs.scrollView.scrollTo({ x: x }); 85 | self.setState({ selected: itemNum }); 86 | } 87 | } else { 88 | self.refs.scrollView.scrollTo({ x: x }); 89 | self.setState({ selected: itemNum }); 90 | } 91 | }); 92 | }, 500); 93 | 94 | this.props.callback(itemNum); 95 | } 96 | }, { 97 | key: 'render', 98 | value: function render() { 99 | var _this2 = this; 100 | 101 | var styles = _reactNative.StyleSheet.create({ 102 | scrollBar: { 103 | backgroundColor: this.props.backgroundColor, 104 | paddingBottom: 10, 105 | paddingTop: 8 106 | }, 107 | scrollBarItem: { 108 | color: this.props.textColor, 109 | marginRight: this.props.itemSpacing 110 | }, 111 | scrollBarFirstItem: { 112 | marginLeft: this.props.itemSpacing 113 | }, 114 | scrollBarSelectedItem: { 115 | color: this.props.selectedTextColor 116 | } 117 | }); 118 | 119 | var items = []; 120 | 121 | var _loop = function _loop(i) { 122 | items.push(_react2.default.createElement(_reactNative.TouchableOpacity, { 123 | key: i, 124 | style: styles.button, 125 | onPress: function onPress() { 126 | _this2.scroll(i); 127 | } 128 | }, _react2.default.createElement(_reactNative.Text, { style: [i === 0 ? styles.scrollBarFirstItem : null, styles.scrollBarItem, _this2.state.selected === i ? styles.scrollBarSelectedItem : null], 129 | onLayout: function onLayout(object) { 130 | var width = object.nativeEvent.layout.width; 131 | 132 | var newState = _this2.state; 133 | newState.widths[i] = width; 134 | _this2.setState(newState); 135 | } 136 | }, _this2.props.items[i]))); 137 | }; 138 | 139 | for (var i = 0; i <= this.props.items.length; i++) { 140 | _loop(i); 141 | } 142 | 143 | return _react2.default.createElement(_reactNative.ScrollView, { 144 | ref: 'scrollView', 145 | style: styles.scrollBar, 146 | horizontal: true, 147 | onContentSizeChange: function onContentSizeChange(contentWidth, contentHeight) { 148 | _this2.setState({ contentWidth: contentWidth }); 149 | } 150 | }, items); 151 | } 152 | }]); 153 | 154 | return ScrollingMenu; 155 | }(_react.Component); 156 | 157 | ScrollingMenu.propTypes = { 158 | items: _react2.default.PropTypes.array.isRequired, 159 | callback: _react2.default.PropTypes.func.isRequired, 160 | backgroundColor: _react2.default.PropTypes.string, 161 | textColor: _react2.default.PropTypes.string, 162 | selectedTextColor: _react2.default.PropTypes.string, 163 | itemSpacing: _react2.default.PropTypes.number 164 | }; 165 | 166 | ScrollingMenu.defaultProps = { 167 | backgroundColor: "#ffffff", 168 | textColor: "#cccccc", 169 | selectedTextColor: "#000000", 170 | itemSpacing: 20 171 | }; 172 | 173 | module.exports = ScrollingMenu; 174 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "react-native-scrolling-menu", 3 | "version": "0.1.1", 4 | "description": "A horizontal scrolling menu for React Native.", 5 | "main": "index.js", 6 | "scripts": { 7 | "build": "babel -d ./ src --presets es2015,react,stage-0 && uglifyjs index.js --compress -o index.min.js" 8 | }, 9 | "author": "Michael Hirsch ", 10 | "license": "GNU", 11 | "devDependencies": { 12 | "babel-cli": "^6.2.0", 13 | "babel-preset-es2015": "^6.1.18", 14 | "babel-preset-react": "^6.1.18", 15 | "babel-preset-stage-0": "^6.3.13", 16 | "concat-cli": "^4.0.0", 17 | "uglify-js": "^2.6.1", 18 | "uglifyjs": "^2.4.10" 19 | }, 20 | "keywords": [ 21 | "react", 22 | "react-native", 23 | "navbar", 24 | "navigation", 25 | "menu", 26 | "tabs", 27 | "horizontal", 28 | "scrolling" 29 | ], 30 | "repository": { 31 | "type": "git", 32 | "url": "git+https://github.com/ccm-innovation/react-native-scrolling-menu.git" 33 | }, 34 | "bugs": { 35 | "url": "https://github.com/ccm-innovation/react-native-scrolling-menu/issues" 36 | }, 37 | "homepage": "https://github.com/ccm-innovation/react-native-scrolling-menu#readme" 38 | } 39 | -------------------------------------------------------------------------------- /src/index.js: -------------------------------------------------------------------------------- 1 | 'use strict' 2 | 3 | import React, { 4 | Component 5 | } from 'react'; 6 | 7 | import ReactNative, { 8 | Dimensions, 9 | ScrollView, 10 | StyleSheet, 11 | Text, 12 | TouchableOpacity, 13 | View 14 | } from 'react-native'; 15 | 16 | class ScrollingMenu extends Component { 17 | 18 | constructor(props) { 19 | super(props) 20 | this.state = { 21 | selected: 0, 22 | widths: new Array(props.items.length), 23 | contentWidth: 0 24 | } 25 | } 26 | 27 | scroll(itemNum) { 28 | let widthInFront = 0, 29 | currentItemWidth = this.state.widths[itemNum], 30 | screenWidth = Dimensions.get('window').width, 31 | contentWidth = this.state.contentWidth, 32 | self = this 33 | 34 | for (let i = 0; i <= itemNum; i++) { 35 | if (i < itemNum) widthInFront += this.state.widths[i] + this.props.itemSpacing 36 | } 37 | 38 | setTimeout(function(){ 39 | window.requestAnimationFrame( 40 | () => { 41 | let x = (widthInFront + self.props.itemSpacing) - ( ( screenWidth / 2 ) - ( currentItemWidth / 2 ) ) 42 | if (x < 0) { 43 | x = 0 44 | } else if (x > (contentWidth - screenWidth)) { 45 | x = contentWidth - screenWidth 46 | } 47 | if (self.props.noSetState) { 48 | if (self.props.noSetState.indexOf(self.props.items[itemNum]) === -1) { 49 | self.refs.scrollView.scrollTo({x}) 50 | self.setState({selected: itemNum}) 51 | } 52 | } else { 53 | self.refs.scrollView.scrollTo({x}) 54 | self.setState({selected: itemNum}) 55 | } 56 | } 57 | ) 58 | },500) 59 | 60 | this.props.callback(itemNum) 61 | } 62 | 63 | render() { 64 | 65 | let styles = StyleSheet.create({ 66 | scrollBar: { 67 | backgroundColor: this.props.backgroundColor, 68 | paddingBottom: 10, 69 | paddingTop: 8 70 | }, 71 | scrollBarItem: { 72 | color: this.props.textColor, 73 | marginRight: this.props.itemSpacing 74 | }, 75 | scrollBarFirstItem: { 76 | marginLeft: this.props.itemSpacing 77 | }, 78 | scrollBarSelectedItem: { 79 | color: this.props.selectedTextColor 80 | } 81 | }) 82 | 83 | let items = [] 84 | for (let i = 0; i <= this.props.items.length; i++) { 85 | items.push( 86 | { this.scroll(i) }} 90 | > 91 | { 93 | let {width} = object.nativeEvent.layout 94 | let newState = this.state 95 | newState.widths[i] = width 96 | this.setState(newState) 97 | }} 98 | > 99 | {this.props.items[i]} 100 | 101 | 102 | ) 103 | } 104 | 105 | return ( 106 | { 111 | this.setState({contentWidth}) 112 | }} 113 | > 114 | {items} 115 | 116 | ) 117 | } 118 | } 119 | 120 | ScrollingMenu.propTypes = { 121 | items: React.PropTypes.array.isRequired, 122 | callback: React.PropTypes.func.isRequired, 123 | backgroundColor: React.PropTypes.string, 124 | textColor: React.PropTypes.string, 125 | selectedTextColor: React.PropTypes.string, 126 | itemSpacing: React.PropTypes.number 127 | } 128 | 129 | ScrollingMenu.defaultProps = { 130 | backgroundColor: "#ffffff", 131 | textColor: "#cccccc", 132 | selectedTextColor: "#000000", 133 | itemSpacing: 20 134 | } 135 | 136 | module.exports = ScrollingMenu 137 | --------------------------------------------------------------------------------