blob: bb0393c873bdb782ecdf173dd839a9d2a02ffc3c [file] [log] [blame]
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>iOS APIs | WEEX</title>
<meta name="description" content="Weex">
<link rel="icon" href="//gw.alicdn.com/tps/TB1XNqxPXXXXXcSXVXXXXXXXXXX-64-63.png">
<script src="//g.alicdn.com/alilog/mlog/aplus_v2.js"></script>
<meta name="data-spm" dataSpmProtocol="i" content="a2c7j">
<meta name="aplus-ajax" content="chksum">
<meta name="aplus-waiting" content="MAN">
<meta name="google-site-verification" content="FbH8DPHpxdDJlfkKLKXuXWOu69DI8ZRRP8O2Phg8UKw">
<meta name="baidu-site-verification" content="WRr1iWvsYK">
<link rel="preload" href="/assets/css/styles.0ff943f0.css" as="style"><link rel="preload" href="/assets/js/app.0ff943f0.js" as="script"><link rel="preload" href="/assets/js/123.84abc63f.js" as="script"><link rel="prefetch" href="/assets/css/1.styles.aa72e838.css"><link rel="prefetch" href="/assets/css/10.styles.1fff5b86.css"><link rel="prefetch" href="/assets/css/11.styles.a03faa50.css"><link rel="prefetch" href="/assets/css/2.styles.fc5d9892.css"><link rel="prefetch" href="/assets/css/21.styles.9ebad2b1.css"><link rel="prefetch" href="/assets/css/3.styles.6b94323a.css"><link rel="prefetch" href="/assets/css/36.styles.6dbb9d8c.css"><link rel="prefetch" href="/assets/css/4.styles.706a5607.css"><link rel="prefetch" href="/assets/css/7.styles.469d3b64.css"><link rel="prefetch" href="/assets/css/8.styles.b36167bf.css"><link rel="prefetch" href="/assets/css/9.styles.5bed6ebe.css"><link rel="prefetch" href="/assets/js/10.1fff5b86.js"><link rel="prefetch" href="/assets/js/100.09076a87.js"><link rel="prefetch" href="/assets/js/101.71fa3538.js"><link rel="prefetch" href="/assets/js/102.8a9926d6.js"><link rel="prefetch" href="/assets/js/103.d6c3649e.js"><link rel="prefetch" href="/assets/js/104.adb2425b.js"><link rel="prefetch" href="/assets/js/105.a063ca34.js"><link rel="prefetch" href="/assets/js/106.620e227f.js"><link rel="prefetch" href="/assets/js/107.1c97d156.js"><link rel="prefetch" href="/assets/js/108.d1f236a9.js"><link rel="prefetch" href="/assets/js/109.10a909cc.js"><link rel="prefetch" href="/assets/js/11.a03faa50.js"><link rel="prefetch" href="/assets/js/110.6f9200c8.js"><link rel="prefetch" href="/assets/js/111.9c1831b3.js"><link rel="prefetch" href="/assets/js/112.e5c0d546.js"><link rel="prefetch" href="/assets/js/113.b1c17feb.js"><link rel="prefetch" href="/assets/js/114.c24b95ed.js"><link rel="prefetch" href="/assets/js/115.d7e38c3b.js"><link rel="prefetch" href="/assets/js/116.1aaa95ab.js"><link rel="prefetch" href="/assets/js/117.1a9e5539.js"><link rel="prefetch" href="/assets/js/118.8d915477.js"><link rel="prefetch" href="/assets/js/119.77f0a126.js"><link rel="prefetch" href="/assets/js/12.16a9b730.js"><link rel="prefetch" href="/assets/js/120.3cf0ba10.js"><link rel="prefetch" href="/assets/js/121.47fefbf1.js"><link rel="prefetch" href="/assets/js/122.3dd022e8.js"><link rel="prefetch" href="/assets/js/124.2568e233.js"><link rel="prefetch" href="/assets/js/125.5b665f24.js"><link rel="prefetch" href="/assets/js/126.25b58a0a.js"><link rel="prefetch" href="/assets/js/127.d62a58c6.js"><link rel="prefetch" href="/assets/js/128.e5774a02.js"><link rel="prefetch" href="/assets/js/129.9a813c06.js"><link rel="prefetch" href="/assets/js/13.f8bde866.js"><link rel="prefetch" href="/assets/js/130.edddc316.js"><link rel="prefetch" href="/assets/js/131.760aa65c.js"><link rel="prefetch" href="/assets/js/132.559d5ba7.js"><link rel="prefetch" href="/assets/js/133.cbdd35c7.js"><link rel="prefetch" href="/assets/js/134.c02d92e1.js"><link rel="prefetch" href="/assets/js/135.e6d5496a.js"><link rel="prefetch" href="/assets/js/136.8826af60.js"><link rel="prefetch" href="/assets/js/137.28b4573d.js"><link rel="prefetch" href="/assets/js/138.d370fc15.js"><link rel="prefetch" href="/assets/js/139.8d9150fc.js"><link rel="prefetch" href="/assets/js/14.a98602cc.js"><link rel="prefetch" href="/assets/js/140.f0a9b5e1.js"><link rel="prefetch" href="/assets/js/141.297fa6fe.js"><link rel="prefetch" href="/assets/js/142.82bbcbaa.js"><link rel="prefetch" href="/assets/js/143.2d1ed3b2.js"><link rel="prefetch" href="/assets/js/144.69a9bc6a.js"><link rel="prefetch" href="/assets/js/145.74d52c12.js"><link rel="prefetch" href="/assets/js/146.12ecdaf4.js"><link rel="prefetch" href="/assets/js/147.daad4b96.js"><link rel="prefetch" href="/assets/js/148.bb356182.js"><link rel="prefetch" href="/assets/js/149.56fdaace.js"><link rel="prefetch" href="/assets/js/15.ea6e5024.js"><link rel="prefetch" href="/assets/js/150.ee9c4994.js"><link rel="prefetch" href="/assets/js/151.2feae618.js"><link rel="prefetch" href="/assets/js/152.c7703521.js"><link rel="prefetch" href="/assets/js/153.3b555eab.js"><link rel="prefetch" href="/assets/js/154.c6329253.js"><link rel="prefetch" href="/assets/js/155.334c4ea4.js"><link rel="prefetch" href="/assets/js/156.1a29657f.js"><link rel="prefetch" href="/assets/js/157.ba8f07bc.js"><link rel="prefetch" href="/assets/js/158.a60a60ba.js"><link rel="prefetch" href="/assets/js/159.9ce96d49.js"><link rel="prefetch" href="/assets/js/16.14acc638.js"><link rel="prefetch" href="/assets/js/160.2a970224.js"><link rel="prefetch" href="/assets/js/161.a26e2b53.js"><link rel="prefetch" href="/assets/js/162.73535662.js"><link rel="prefetch" href="/assets/js/163.7518a0a5.js"><link rel="prefetch" href="/assets/js/164.17367778.js"><link rel="prefetch" href="/assets/js/165.46c8f055.js"><link rel="prefetch" href="/assets/js/166.1cc22037.js"><link rel="prefetch" href="/assets/js/167.3fbcb5c6.js"><link rel="prefetch" href="/assets/js/168.a3f80f1e.js"><link rel="prefetch" href="/assets/js/169.a6565c29.js"><link rel="prefetch" href="/assets/js/17.d6f2f3b8.js"><link rel="prefetch" href="/assets/js/170.566ddeda.js"><link rel="prefetch" href="/assets/js/171.4fd97bee.js"><link rel="prefetch" href="/assets/js/172.5295c6b9.js"><link rel="prefetch" href="/assets/js/173.ff25fd05.js"><link rel="prefetch" href="/assets/js/174.22ea6a1b.js"><link rel="prefetch" href="/assets/js/175.c6a04367.js"><link rel="prefetch" href="/assets/js/176.d3810924.js"><link rel="prefetch" href="/assets/js/177.facd2802.js"><link rel="prefetch" href="/assets/js/178.f4c6fbe9.js"><link rel="prefetch" href="/assets/js/179.1a3a2c12.js"><link rel="prefetch" href="/assets/js/18.83f6b39a.js"><link rel="prefetch" href="/assets/js/180.b54c8e90.js"><link rel="prefetch" href="/assets/js/181.88495b4c.js"><link rel="prefetch" href="/assets/js/182.8341d23c.js"><link rel="prefetch" href="/assets/js/183.332bcfe2.js"><link rel="prefetch" href="/assets/js/184.d8996a56.js"><link rel="prefetch" href="/assets/js/185.b8584f07.js"><link rel="prefetch" href="/assets/js/186.fa89e23f.js"><link rel="prefetch" href="/assets/js/187.90340eeb.js"><link rel="prefetch" href="/assets/js/188.efe631f8.js"><link rel="prefetch" href="/assets/js/189.72897b1a.js"><link rel="prefetch" href="/assets/js/19.94f071c0.js"><link rel="prefetch" href="/assets/js/190.1ec691ee.js"><link rel="prefetch" href="/assets/js/2.fc5d9892.js"><link rel="prefetch" href="/assets/js/20.13f7bbff.js"><link rel="prefetch" href="/assets/js/21.9ebad2b1.js"><link rel="prefetch" href="/assets/js/22.764b643d.js"><link rel="prefetch" href="/assets/js/23.f533737e.js"><link rel="prefetch" href="/assets/js/24.4eaa533c.js"><link rel="prefetch" href="/assets/js/25.e9877e57.js"><link rel="prefetch" href="/assets/js/26.8905d6a0.js"><link rel="prefetch" href="/assets/js/27.b199a955.js"><link rel="prefetch" href="/assets/js/28.524af0cf.js"><link rel="prefetch" href="/assets/js/29.b772949f.js"><link rel="prefetch" href="/assets/js/3.6b94323a.js"><link rel="prefetch" href="/assets/js/30.f5bcac64.js"><link rel="prefetch" href="/assets/js/31.c55e03aa.js"><link rel="prefetch" href="/assets/js/32.e575600a.js"><link rel="prefetch" href="/assets/js/33.3fff5656.js"><link rel="prefetch" href="/assets/js/34.82598567.js"><link rel="prefetch" href="/assets/js/35.8e1290ba.js"><link rel="prefetch" href="/assets/js/36.6dbb9d8c.js"><link rel="prefetch" href="/assets/js/37.d27fdc88.js"><link rel="prefetch" href="/assets/js/38.f8fc7b20.js"><link rel="prefetch" href="/assets/js/39.bf967d40.js"><link rel="prefetch" href="/assets/js/4.706a5607.js"><link rel="prefetch" href="/assets/js/40.e1864fd6.js"><link rel="prefetch" href="/assets/js/41.61bd3b64.js"><link rel="prefetch" href="/assets/js/42.34d8d61d.js"><link rel="prefetch" href="/assets/js/43.1aee493f.js"><link rel="prefetch" href="/assets/js/44.22177e9b.js"><link rel="prefetch" href="/assets/js/45.5c743d2f.js"><link rel="prefetch" href="/assets/js/46.4feffac9.js"><link rel="prefetch" href="/assets/js/47.367f9103.js"><link rel="prefetch" href="/assets/js/48.0c246d45.js"><link rel="prefetch" href="/assets/js/49.ee354be9.js"><link rel="prefetch" href="/assets/js/5.7d9779f7.js"><link rel="prefetch" href="/assets/js/50.bd81c7f0.js"><link rel="prefetch" href="/assets/js/51.a5f432dd.js"><link rel="prefetch" href="/assets/js/52.537aded4.js"><link rel="prefetch" href="/assets/js/53.84814584.js"><link rel="prefetch" href="/assets/js/54.5f780e97.js"><link rel="prefetch" href="/assets/js/55.9d44c91d.js"><link rel="prefetch" href="/assets/js/56.fc164b43.js"><link rel="prefetch" href="/assets/js/57.959b2d44.js"><link rel="prefetch" href="/assets/js/58.bd5c38e0.js"><link rel="prefetch" href="/assets/js/59.3eaece52.js"><link rel="prefetch" href="/assets/js/6.49a49457.js"><link rel="prefetch" href="/assets/js/60.4b8cb735.js"><link rel="prefetch" href="/assets/js/61.b54b9195.js"><link rel="prefetch" href="/assets/js/62.0116614c.js"><link rel="prefetch" href="/assets/js/63.85b1247d.js"><link rel="prefetch" href="/assets/js/64.8f1be6b5.js"><link rel="prefetch" href="/assets/js/65.6a241647.js"><link rel="prefetch" href="/assets/js/66.08c8bd13.js"><link rel="prefetch" href="/assets/js/67.002e0071.js"><link rel="prefetch" href="/assets/js/68.6c6a7c94.js"><link rel="prefetch" href="/assets/js/69.64d90e5d.js"><link rel="prefetch" href="/assets/js/7.469d3b64.js"><link rel="prefetch" href="/assets/js/70.b2c287c9.js"><link rel="prefetch" href="/assets/js/71.b7ad1135.js"><link rel="prefetch" href="/assets/js/72.7391b5c2.js"><link rel="prefetch" href="/assets/js/73.c5c77d81.js"><link rel="prefetch" href="/assets/js/74.96f80ffd.js"><link rel="prefetch" href="/assets/js/75.2920c7b7.js"><link rel="prefetch" href="/assets/js/76.a90bd3c9.js"><link rel="prefetch" href="/assets/js/77.3a0eeccd.js"><link rel="prefetch" href="/assets/js/78.6791678c.js"><link rel="prefetch" href="/assets/js/79.8b0c78e4.js"><link rel="prefetch" href="/assets/js/8.b36167bf.js"><link rel="prefetch" href="/assets/js/80.2641b89d.js"><link rel="prefetch" href="/assets/js/81.03d1925e.js"><link rel="prefetch" href="/assets/js/82.71061708.js"><link rel="prefetch" href="/assets/js/83.df220a8f.js"><link rel="prefetch" href="/assets/js/84.99fbef8f.js"><link rel="prefetch" href="/assets/js/85.dee8bcae.js"><link rel="prefetch" href="/assets/js/86.5200e4ce.js"><link rel="prefetch" href="/assets/js/87.96df0d82.js"><link rel="prefetch" href="/assets/js/88.e9171a32.js"><link rel="prefetch" href="/assets/js/89.53987bbc.js"><link rel="prefetch" href="/assets/js/9.5bed6ebe.js"><link rel="prefetch" href="/assets/js/90.8da0ff06.js"><link rel="prefetch" href="/assets/js/91.4bcce2cd.js"><link rel="prefetch" href="/assets/js/92.aca18707.js"><link rel="prefetch" href="/assets/js/93.93fdf568.js"><link rel="prefetch" href="/assets/js/94.e893b256.js"><link rel="prefetch" href="/assets/js/95.cb1d62b6.js"><link rel="prefetch" href="/assets/js/96.5529545c.js"><link rel="prefetch" href="/assets/js/97.d01eda68.js"><link rel="prefetch" href="/assets/js/98.384bebd6.js"><link rel="prefetch" href="/assets/js/99.fa349b8f.js"><link rel="prefetch" href="/assets/js/vendors~docsearch.aa72e838.js">
<link rel="stylesheet" href="/assets/css/styles.0ff943f0.css">
</head>
<body>
<div id="app" data-server-rendered="true"><div class="theme-container vuepress-theme-fast"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div><a href="/zh/" class="home-link router-link-active"><img src="/logo@2x.svg" alt="WEEX" class="logo"></a><span class="version"><a href="/download/download.html" class="version-bg"><img src="/assets/img/version-bg.ab65ded9.svg" alt="v0.28"><span class="version-no">v0.28</span></a></span><div class="links"><form id="search-form" class="algolia-search-wrapper search-box"><input id="algolia-search-input" class="search-query"></form><nav class="nav-links can-hide"><div class="nav-item"><a href="/zh/guide/" class="nav-link">指南</a></div><div class="nav-item"><a href="/zh/docs/" class="nav-link router-link-active">文档</a></div><div class="nav-item"><a href="/zh/tools/" class="nav-link">第三方工具</a></div><div class="nav-item"><a href="/zh/download/" class="nav-link">下载</a></div><div class="nav-item"><a href="/zh/community/" class="nav-link">社区</a></div><div class="nav-item"><a href="/zh/blog/" class="nav-link">博客</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">选择语言</span><span class="arrow right"></span></a><ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----><a href="/docs/api/ios-apis.html" class="nav-link">English</a></li><li class="dropdown-item"><!----><a href="/zh/docs/api/ios-apis.html" class="nav-link router-link-exact-active router-link-active">简体中文</a></li></ul></div></div></nav><a href="https://github.com/apache/incubator-weex" target="_blank" rel="noopener noreferrer" class="repo-link"><img src="/assets/img/github.7cb484a9.svg" alt="github" class="github-icon"></a></div></header><div class="sidebar-mask"></div><div class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/zh/guide/" class="nav-link">指南</a></div><div class="nav-item"><a href="/zh/docs/" class="nav-link router-link-active">文档</a></div><div class="nav-item"><a href="/zh/tools/" class="nav-link">第三方工具</a></div><div class="nav-item"><a href="/zh/download/" class="nav-link">下载</a></div><div class="nav-item"><a href="/zh/community/" class="nav-link">社区</a></div><div class="nav-item"><a href="/zh/blog/" class="nav-link">博客</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">选择语言</span><span class="arrow right"></span></a><ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----><a href="/docs/api/ios-apis.html" class="nav-link">English</a></li><li class="dropdown-item"><!----><a href="/zh/docs/api/ios-apis.html" class="nav-link router-link-exact-active router-link-active">简体中文</a></li></ul></div></div></nav><ul class="sidebar-links"><li><div class="sidebar-group first"><p class="sidebar-heading open"><span>API</span><!----></p><ul class="sidebar-group-items"><li><a href="/zh/docs/api/weex-variable.html" class="sidebar-link">Weex 环境变量</a></li><li><a href="/zh/docs/api/android-apis.html" class="sidebar-link">Android 接口</a></li><li><a href="/zh/docs/api/ios-apis.html" class="active sidebar-link">iOS 接口</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/zh/docs/api/ios-apis.html#native-对外接口" class="sidebar-link">Native 对外接口</a></li><li class="sidebar-sub-header"><a href="/zh/docs/api/ios-apis.html#handler-对应于-android-的-adapter-介绍" class="sidebar-link">Handler (对应于 Android 的 Adapter) 介绍</a></li><li class="sidebar-sub-header"><a href="/zh/docs/api/ios-apis.html#native-和-js-通信" class="sidebar-link">Native 和 JS 通信</a></li><li class="sidebar-sub-header"><a href="/zh/docs/api/ios-apis.html#动态适配容器" class="sidebar-link">动态适配容器</a></li><li class="sidebar-sub-header"><a href="/zh/docs/api/ios-apis.html#降级使用" class="sidebar-link">降级使用</a></li></ul></li><li><a href="/zh/docs/api/js-service.html" class="sidebar-link">JS 服务</a></li><li><a href="/zh/docs/api/broadcast-channel.html" class="sidebar-link">跨页面通信</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>内置组件</span><!----></p><ul class="sidebar-group-items"><li><a href="/zh/docs/components/a.html" class="sidebar-link">&lt;a&gt;</a></li><li><a href="/zh/docs/components/div.html" class="sidebar-link">&lt;div&gt;</a></li><li><a href="/zh/docs/components/text.html" class="sidebar-link">&lt;text&gt;</a></li><li><a href="/zh/docs/components/image.html" class="sidebar-link">&lt;image&gt;</a></li><li><a href="/zh/docs/components/list.html" class="sidebar-link">&lt;list&gt;</a></li><li><a href="/zh/docs/components/cell.html" class="sidebar-link">&lt;cell&gt;</a></li><li><a href="/zh/docs/components/loading.html" class="sidebar-link">&lt;loading&gt;</a></li><li><a href="/zh/docs/components/refresh.html" class="sidebar-link">&lt;refresh&gt;</a></li><li><a href="/zh/docs/components/recycle-list.html" class="sidebar-link">&lt;recycle-list&gt;</a></li><li><a href="/zh/docs/components/scroller.html" class="sidebar-link">&lt;scroller&gt;</a></li><li><a href="/zh/docs/components/slider.html" class="sidebar-link">&lt;slider&gt;</a></li><li><a href="/zh/docs/components/indicator.html" class="sidebar-link">&lt;indicator&gt;</a></li><li><a href="/zh/docs/components/textarea.html" class="sidebar-link">&lt;textarea&gt;</a></li><li><a href="/zh/docs/components/input.html" class="sidebar-link">&lt;input&gt;</a></li><li><a href="/zh/docs/components/waterfall.html" class="sidebar-link">&lt;waterfall&gt;</a></li><li><a href="/zh/docs/components/video.html" class="sidebar-link">&lt;video&gt;</a></li><li><a href="/zh/docs/components/web.html" class="sidebar-link">&lt;web&gt;</a></li><li><a href="/zh/docs/components/richtext.html" class="sidebar-link">&lt;richtext&gt;</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>内置模块</span><!----></p><ul class="sidebar-group-items"><li><a href="/zh/docs/modules/animation.html" class="sidebar-link">animation</a></li><li><a href="/zh/docs/modules/clipboard.html" class="sidebar-link">clipboard</a></li><li><a href="/zh/docs/modules/dom.html" class="sidebar-link">dom</a></li><li><a href="/zh/docs/modules/globalEvent.html" class="sidebar-link">globalEvent</a></li><li><a href="/zh/docs/modules/meta.html" class="sidebar-link">meta</a></li><li><a href="/zh/docs/modules/modal.html" class="sidebar-link">modal</a></li><li><a href="/zh/docs/modules/navigator.html" class="sidebar-link">navigator</a></li><li><a href="/zh/docs/modules/picker.html" class="sidebar-link">picker</a></li><li><a href="/zh/docs/modules/storage.html" class="sidebar-link">storage</a></li><li><a href="/zh/docs/modules/stream.html" class="sidebar-link">stream</a></li><li><a href="/zh/docs/modules/webview.html" class="sidebar-link">webview</a></li><li><a href="/zh/docs/modules/websockets.html" class="sidebar-link">webSockets</a></li><li><a href="/zh/docs/modules/deviceInfo.html" class="sidebar-link">deviceInfo</a></li><li><a href="/zh/docs/modules/console-log.html" class="sidebar-link">console-log</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>样式</span><!----></p><ul class="sidebar-group-items"><li><a href="/zh/docs/styles/common-styles.html" class="sidebar-link">通用样式</a></li><li><a href="/zh/docs/styles/text-styles.html" class="sidebar-link">文本样式</a></li><li><a href="/zh/docs/styles/css-units.html" class="sidebar-link">CSS 单位</a></li><li><a href="/zh/docs/styles/color-name.html" class="sidebar-link">颜色值</a></li></ul></div></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>事件</span><!----></p><ul class="sidebar-group-items"><li><a href="/zh/docs/events/common-events.html" class="sidebar-link">通用事件</a></li><li><a href="/zh/docs/events/event-bubbling.html" class="sidebar-link">事件冒泡</a></li><li><a href="/zh/docs/events/gesture.html" class="sidebar-link">手势</a></li></ul></div></li></ul></div><div class="page"><div class="content"><h1 id="ios-apis"><a href="#ios-apis" class="header-anchor">#</a> iOS APIs</h1><h2 id="native-对外接口"><a href="#native-对外接口" class="header-anchor">#</a> Native 对外接口</h2><ul><li>注册 SDK 默认的 Module、Handler 和 Component</li><li>注册自定义 module、Handler 和 Component</li><li>重置 JSFramework</li></ul><h2 id="handler-对应于-android-的-adapter-介绍"><a href="#handler-对应于-android-的-adapter-介绍" class="header-anchor">#</a> Handler (对应于 Android 的 Adapter) 介绍</h2><ul><li><p><code>WXImgLoaderDefaultImpl</code> 图片下载 handler。Weex 会把需要设置图片的 View 和 URL 透露出来,Native 端需要实现这个接口进行图片下载。WeexSDK kernel 本身没有提供图片下载的默认实现。</p><p>接口定义如下:</p><div class="language-object-c extra-class"><pre class="language-text"><code> @protocol WXImgLoaderProtocol &lt;WXModuleProtocol&gt;
/**
* @abstract Creates a image download handler with a given URL
*
* @param imageUrl The URL of the image to download
*
* @param imageFrame The frame of the image you want to set
*
* @param options : The options to be used for this download
*
* @param completedBlock : A block called once the download is completed.
* image : the image which has been download to local.
* error : the error which has happened in download.
* finished : a Boolean value indicating whether download action has finished.
*/
- (id&lt;WXImageOperationProtocol&gt;)downloadImageWithURL:(NSString *)url imageFrame:(CGRect)imageFrame userInfo:(NSDictionary *)options completed:(void(^)(UIImage *image, NSError *error, BOOL finished))completedBlock;
@end
</code></pre></div></li></ul><h2 id="native-和-js-通信"><a href="#native-和-js-通信" class="header-anchor">#</a> Native 和 JS 通信</h2><ul><li><p>自定义通知事件</p><p>用于 native 自定义部分和 js 进行实践通知,比如传递下拉事件到 js,这个是在 component 基类的方法,可以直接使用</p><div class="language- extra-class"><pre class="language-text"><code>/**
* @abstract Fire an event to the component and tell Javascript which value has been changed.
* @param eventName 事件名称,可以在weex文件某个标签组件监听,命名规范为 onXXX
* @param params 数据
* @param domChanges 发生改变的数据
**/
- (void)fireEvent:(NSString *)eventName params:(NSDictionary *)params domChanges:(NSDictionary *)domChanges
</code></pre></div></li><li><p>事件回调</p><p>多用于 Module 回调结果给 js,回调类型分为下面两种:</p><ol><li><p><code>WXModuleCallback</code> 为了性能考虑,该回调只能回调通知js一次,之后会被释放,多用于一次结果</p></li><li><p><code>WXModuleKeepAliveCallback</code> 该回调可以设置是否为多次回调类型,多次回调的场景如持续监听位置的变化,并返回给 js。</p></li></ol><div class="language- extra-class"><pre class="language-text"><code>@implementation WXEchoModule
@synthesize weexInstance; // 让该module 获得当前instance
WX_EXPORT_METHOD(@selector(echo:))
- (void)echo:(NSString *)param callback:(WXModuleKeepAliveCallback)callback
{
callback(param,ture);// 此处设置true,该回调function 可以多次回调执行,可以写循环测试.
}
</code></pre></div></li></ul><h2 id="动态适配容器"><a href="#动态适配容器" class="header-anchor">#</a> 动态适配容器</h2><p>WeexSDK 在 <code>WXSDKInstance</code> 类中提供了方法 <code>setFrame(CGRect)</code> 来改变容器的大小。</p><p>如:在导航栏从有到无过程,需要 weexView 的变化, 可以在此时 native 调用该方法设置</p><h2 id="降级使用"><a href="#降级使用" class="header-anchor">#</a> 降级使用</h2><p>Weex 处于发展阶段会增加一些新的特性和功能,但是这些新的特性和功能都必须升级 SDK 才能实现,对于没有升级的应用应该怎么处理呢?可以使用降级功能。</p><p>所谓降级功能就是 Weex 无法运行的版本或者手机,可以用 Weex h5 来代替。</p><p>Native 端可以通过接口 WXSDKInstance 中的 onFailed 回调进行处理,如果是主动降级则返回的错误 domain 为 <code>TemplateErrorType</code>,Native 端可以跳转到对应的 H5 页面,或者用其他的方式提示用户当前环境不支持 Weex。</p></div><div class="page-nav"><p class="inner"><span class="prev">
<a href="/zh/docs/api/android-apis.html" class="prev">
Android 接口
</a></span><span class="next"><a href="/zh/docs/api/js-service.html">
JS 服务
</a>
</span></p></div><div class="page-edit"><div class="last-updated"><span class="prefix">上次更新: </span><span class="time">2020/12/10</span></div><div class="edit-link"><a href="https://github.com/apache/incubator-weex-site/edit/master/docs/zh/docs/api/ios-apis.md" target="_blank" rel="noopener noreferrer">编辑此页</a><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><a href="https://github.com/apache/incubator-weex-site/issues/new?body=https%3A%2F%2Fweex.io%2F" target="_blank" rel="noopener noreferrer" class="issueText">提交建议</a><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></div><div class="score"><span class="choice"><img src="https://img.alicdn.com/tfs/TB1h7TSqpYqK1RjSZLeXXbXppXa-20-18.svg" class="score-icon">文档写得很棒</span><span class="choice"><img src="https://img.alicdn.com/tfs/TB1h7TSqpYqK1RjSZLeXXbXppXa-20-18.svg" class="score-icon bad">文档写得很差</span></div></div><div class="license-wrap" style="display:none;"><footer class="footer-container" data-v-0ad13d84><div class="footer-body" data-v-0ad13d84><img src="/logo@2x.svg" class="logo" data-v-0ad13d84><img src="//img.alicdn.com/tfs/TB11BRiIW6qK1RjSZFmXXX0PFXa-365-365.png" class="apache" data-v-0ad13d84><div class="cols-container" data-v-0ad13d84><div class="col col-12" data-v-0ad13d84><h3 data-v-0ad13d84>Disclaimer</h3><p data-v-0ad13d84>Apache Weex is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the
Incubator. Incubation is required of all newly accepted projects until a further review indicates that the
infrastructure, communications, and decision making process have stabilized in a manner consistent with
other successful ASF projects. While incubation status is not necessarily a reflection of the completeness
or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.</p></div><div class="col col-4" data-v-0ad13d84><dl data-v-0ad13d84><dt data-v-0ad13d84>ASF</dt><dd data-v-0ad13d84><a href="http://www.apache.org" target="_self" data-v-0ad13d84>Foundation</a></dd><dd data-v-0ad13d84><a href="http://www.apache.org/licenses/" target="_self" data-v-0ad13d84>License</a></dd><dd data-v-0ad13d84><a href="http://www.apache.org/events/current-event" target="_self" data-v-0ad13d84>Events</a></dd><dd data-v-0ad13d84><a href="http://www.apache.org/foundation/sponsorship.html" target="_self" data-v-0ad13d84>Sponsorship</a></dd><dd data-v-0ad13d84><a href="http://www.apache.org/foundation/thanks.html" target="_self" data-v-0ad13d84>Thanks</a></dd></dl></div><div class="col col-4" data-v-0ad13d84><dl data-v-0ad13d84><dt data-v-0ad13d84>Documentation</dt><dd data-v-0ad13d84><a href="/guide/develop/create-a-new-app.html" target="_self" data-v-0ad13d84>Quick start</a></dd><dd data-v-0ad13d84><a href="/guide/develop/setup-develop-environment.html" target="_self" data-v-0ad13d84>Developer guide</a></dd></dl></div><div class="col col-4" data-v-0ad13d84><dl data-v-0ad13d84><dt data-v-0ad13d84>Resources</dt><dd data-v-0ad13d84><a href="/blog/write-a-blog.html" target="_self" data-v-0ad13d84>Blog</a></dd><dd data-v-0ad13d84><a href="/community/" target="_self" data-v-0ad13d84>Community</a></dd><dd data-v-0ad13d84><a href="/guide/contribute/thanks.html" target="_self" data-v-0ad13d84>Thanks by Weex</a></dd><dd data-v-0ad13d84><a href="https://www.apache.org/security/" target="_self" data-v-0ad13d84>Security</a></dd></dl></div></div><div class="copyright" data-v-0ad13d84><span data-v-0ad13d84>Copyright © 2018-2019 The Apache Software Foundation. Apache and the Apache feather
logo are trademarks of The Apache Software Foundation.</span></div></div></footer></div></div><!----></div></div>
<script src="/assets/js/app.0ff943f0.js" defer></script><script src="/assets/js/123.84abc63f.js" defer></script>
</body>
</html>