amis/gh-pages/docs/sdk.js

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define('docs/sdk.md', function(require, exports, module) {
module.exports = {
"title": "如何使用",
"html": "<h2><a class=\"anchor\" name=\"%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8\" href=\"#%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8\" aria-hidden=\"true\"><svg aria-hidden=\"true\" class=\"octicon octicon-link\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>如何使用</h2><pre><code class=\"lang-bash\">npm <span class=\"hljs-selector-tag\">i</span> amis\n</code></pre>\n<p>安装完后可以在 React Component 这么使用。</p>\n<pre><code class=\"lang-tsx\"><span class=\"hljs-keyword\">import</span> * as <span class=\"hljs-type\">React</span> from <span class=\"hljs-symbol\">'reac</span>t';\n<span class=\"hljs-keyword\">import</span> {\n render as renderAmis\n} from <span class=\"hljs-symbol\">'ami</span>s';\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">MyComponent</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component&lt;any</span>, <span class=\"hljs-title\">any&gt;</span> </span>{\n render() {\n <span class=\"hljs-keyword\">return</span> (\n &lt;div&gt;\n &lt;p&gt;通过 amis 渲染页面&lt;/p&gt;\n {renderAmis({\n <span class=\"hljs-comment\">// schema</span>\n <span class=\"hljs-comment\">// 这里是 amis 的 Json 配置。</span>\n <span class=\"hljs-class\"><span class=\"hljs-keyword\">type</span></span>: <span class=\"hljs-symbol\">'pag</span>e',\n title: '简单页面',\n body: '内容'\n }, {\n <span class=\"hljs-comment\">// props</span>\n }, {\n <span class=\"hljs-comment\">// env</span>\n <span class=\"hljs-comment\">// 这些是 amis 需要的一些接口实现</span>\n <span class=\"hljs-comment\">// 可以参考本项目里面的 Demo 部分代码。</span>\n\n updateLocation: (location:string<span class=\"hljs-comment\">/*目标地址*/</span>, replace:boolean<span class=\"hljs-comment\">/*是replace还是push*/</span>) =&gt; {\n <span class=\"hljs-comment\">// 用来更新地址栏</span>\n },\n\n jumpTo: (location:string<span class=\"hljs-comment\">/*目标地址*/</span>) =&gt; {\n <span class=\"hljs-comment\">// 页面跳转, actionType: link、url 都会进来。</span>\n },\n\n fetcher: ({\n url,\n method,\n data,\n config\n }:{\n url:string<span class=\"hljs-comment\">/*目标地址*/</span>,\n method:<span class=\"hljs-symbol\">'ge</span>t' | <span class=\"hljs-symbol\">'pos</span>t' | <span class=\"hljs-symbol\">'pu</span>t' | <span class=\"hljs-symbol\">'delet</span>e'<span class=\"hljs-comment\">/*发送方式*/</span>,\n data: <span class=\"hljs-class\"><span class=\"hljs-keyword\">object</span> <span class=\"hljs-title\">|</span> <span class=\"hljs-title\">void/*数据*/</span>,</span>\n config: <span class=\"hljs-class\"><span class=\"hljs-keyword\">object</span><span class=\"hljs-title\">/*其他配置*/</span></span>\n }) =&gt; {\n <span class=\"hljs-comment\">// 用来发送 Ajax 请求,建议使用 axios</span>\n },\n notify: (<span class=\"hljs-class\"><span class=\"hljs-keyword\">type</span></span>:<span class=\"hljs-symbol\">'erro</span>r'|<span class=\"hljs-symbol\">'succes</span>s'<span class=\"hljs-comment\">/**/</span>, msg:string<span class=\"hljs-comment\">/*提示内容*/</span>) =&gt; {\n <span class=\"hljs-comment\">// 用来提示用户</span>\n },\n alert: (content:string<span class=\"hljs-comment\">/*提示信息*/</span>) =&gt; {\n <span class=\"hljs-comment\">// 另外一种提示,可以直接用系统框</span>\n },\n confirm: (content:string<span class=\"hljs-comment\">/*提示信息*/</span>) =&gt; {\n <span class=\"hljs-comment\">// 确认框。</span>\n }\n });}\n &lt;/div&gt;\n );\n }\n}\n</code></pre>\n<h2><a class=\"anchor\" name=\"%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86\" href=\"#%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86\" aria-hidden=\"true\"><svg aria-hidden=\"true\" class=\"octicon octicon-link\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>工作原理</h2><p>amis 的渲染过程就是将 <code>json</code> 转成对应的 React 组件。先通过 <code>json</code> 的 type 找到对应的 <code>Component</code> 然后,然后把其他属性作为 <code>props</code> 传递过去完成渲染。</p>\n<p>拿一个表单页面来说如果用React组件调用大概是这样。</p>\n<pre><code class=\"lang-jsx\">&lt;<span class=\"hljs-meta\">Page</span>\n <span class=\"hljs-meta\">title</span>=<span class=\"hljs-string\">\"页面标题\"</span>\n subTitle=<span class=\"hljs-string\">\"副标题\"</span>\n&gt;\n &lt;Form\n <span class=\"hljs-meta\">title</span>=<span class=\"hljs-string\">\"用户登录\"</span>\n controls={[\n {\n type: <span class=\"hljs-string\">'text'</span>,\n name: <span class=\"hljs-string\">'username'</span>,\n <span class=\"hljs-meta\">label</span>: <span class=\"hljs-string\">'用户名'</span>\n }\n ]}\n /&gt;\n&lt;/<span class=\"hljs-meta\">Page</span>&gt;\n</code></pre>\n<p>把以上配置方式换成 amis JSON, 则是:</p>\n<pre><code class=\"lang-json\">{\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"page\"</span>,\n <span class=\"hljs-attr\">\"title\"</span>: <span class=\"hljs-string\">\"页面标题\"</span>,\n <span class=\"hljs-attr\">\"subTitle\"</span>: <span class=\"hljs-string\">\"副标题\"</span>,\n <span class=\"hljs-attr\">\"body\"</span>: {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"form\"</span>,\n <span class=\"hljs-attr\">\"title\"</span>: <span class=\"hljs-string\">\"用户登录\"</span>,\n <span class=\"hljs-attr\">\"controls\"</span>: [\n {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"text\"</span>,\n <span class=\"hljs-attr\">\"name\"</span>: <span class=\"hljs-string\">\"username\"</span>,\n <span class=\"hljs-attr\">\"label\"</span>: <span class=\"hljs-string\">\"用户名\"</span>\n }\n ]\n }\n}\n</code></pre>\n<p>那么amis 是如何将 JSON 转成组件的呢?直接根据节点的 type 去跟组件一一对应?似乎很可能会重名比如在表格里面展示的类型 <code>text</code> 跟表单里面的 <code>text</code>是完全不一样的,一个负责展示,一个却负责输入。所以说一个节点要被什么组件渲染,还需要携带上下文(context)信息。</p>\n<p>如何去携带上下文context信息amis 中直接是用节点的路径path来作为上下文信息。从上面的例子来看一共有三个节点path 信息分别是。</p>\n<ul>\n<li><code>page</code> 页面节点</li>\n<li><code>page/body/form</code> 表单节点</li>\n<li><code>page/body/form/controls/0/text</code> 文本框节点。</li>\n</ul>\n<p>根据 path 的信息就能很容易注册组件跟节点对应了。</p>\n<p>Page 组件的示例代码</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-meta\">@Renderer</span>({\n test: /^page$/,\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n})\nexport <span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">PageRenderer</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n render() {\n const {\n title,\n body,\n render <span class=\"hljs-comment\">// 用来渲染孩子节点,如果当前是叶子节点则可以忽略。</span>\n } = <span class=\"hljs-keyword\">this</span>.props;\n <span class=\"hljs-keyword\">return</span> (\n &lt;div className=<span class=\"hljs-string\">\"page\"</span>&gt;\n &lt;h1&gt;{title}&lt;/h1&gt;\n &lt;div className=<span class=\"hljs-string\">\"body-container\"</span>&gt;\n {render(<span class=\"hljs-symbol\">'bod</span>y', body)<span class=\"hljs-comment\">/*渲染孩子节点*/</span>}\n &lt;/div&gt;\n &lt;/div&gt;\n );\n }\n}\n</code></pre>\n<p>Form 组件的示例代码</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-meta\">@Renderer</span>({\n test: /(^|\\/)form$/,\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n})\nexport <span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">FormRenderer</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n render() {\n const {\n title,\n controls,\n render <span class=\"hljs-comment\">// 用来渲染孩子节点,如果当前是叶子节点则可以忽略。</span>\n } = <span class=\"hljs-keyword\">this</span>.props;\n <span class=\"hljs-keyword\">return</span> (\n &lt;form className=<span class=\"hljs-string\">\"form\"</span>&gt;\n {controls.map((control, index) =&gt; (\n &lt;div className=<span class=\"hljs-string\">\"form-item\"</span> key={index}&gt;\n {render(`${index}/control`, control)}\n &lt;/div&gt;\n ))}\n &lt;/form&gt;\n );\n }\n}\n</code></pre>\n<p>Text 组件的示例代码</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-meta\">@Renderer</span>({\n test: /(^|\\/)form(?:\\/\\d+)?\\/control(?\\/\\d+)?\\/text$/\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n})\nexport <span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">FormItemTextRenderer</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n <span class=\"hljs-comment\">// ... 其他信息隐藏了</span>\n render() {\n const {\n label,\n name,\n onChange\n } = <span class=\"hljs-keyword\">this</span>.props;\n <span class=\"hljs-keyword\">return</span> (\n &lt;div className=<span class=\"hljs-string\">\"form-group\"</span>&gt;\n &lt;label&gt;{label}&lt;label&gt;\n &lt;input <span class=\"hljs-class\"><span class=\"hljs-keyword\">type</span></span>=<span class=\"hljs-string\">\"text\"</span> onChange={(e) =&gt; onChange(e.currentTarget.value)} /&gt;\n &lt;/div&gt;\n );\n }\n}\n</code></pre>\n<p>那么渲染过程就是根据节点 path 信息,跟组件池中的组件 <code>test</code> (检测) 信息做匹配,如果命中,则把当前节点转给对应组件渲染,节点中其他属性将作为目标组件的 props。需要注意的是如果是容器组件比如以上例子中的 <code>page</code> 组件,从 props 中拿到的 <code>body</code> 是一个子节点,由于节点类型是不固定,由使用者决定,所以不能直接完成渲染,所以交给属性中下发的 <code>render</code> 方法去完成渲染,<code>{render(&#39;body&#39;, body)}</code>,他的工作就是拿子节点的 path 信息去组件池里面找到对应的渲染器,然后交给对应组件去完成渲染。</p>\n<h2><a class=\"anchor\" name=\"%E8%87%AA%E5%AE%9A%E4%B9%89%E7%BB%84%E4%BB%B6\" href=\"#%E8%87%AA%E5%AE%9A%E4%B9%89%E7%BB%84%E4%BB%B6\" aria-hidden=\"true\"><svg aria-hidden=\"true\" class=\"octicon octicon-link\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>自定义组件</h2><p>如果 amis 中组件不能满足你的需求,同时你又会 React 组件开发,那么就自己定制一个吧。</p>\n<p>先来看个简单的例子</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-keyword\">import</span> * as <span class=\"hljs-type\">React</span> from <span class=\"hljs-symbol\">'reac</span>t';\n<span class=\"hljs-keyword\">import</span> {\n <span class=\"hljs-type\">Renderer</span>\n} from <span class=\"hljs-symbol\">'ami</span>s';\n\n<span class=\"hljs-meta\">@Renderer</span>({\n test: /(^|\\/)my\\-renderer$/,\n})\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">CustomRenderer</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n render() {\n const {tip} = <span class=\"hljs-keyword\">this</span>.props;\n <span class=\"hljs-keyword\">return</span> (\n &lt;div&gt;这是自定义组件:{tip}&lt;/div&gt;\n );\n }\n}\n</code></pre>\n<p>有了以上这段代码后,就可以这样使用了。</p>\n<pre><code class=\"lang-json\">{\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"page\"</span>,\n <span class=\"hljs-attr\">\"title\"</span>: <span class=\"hljs-string\">\"自定义组件示例\"</span>,\n <span class=\"hljs-attr\">\"body\"</span>: {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"my-renderer\"</span>,\n <span class=\"hljs-attr\">\"tip\"</span>: <span class=\"hljs-string\">\"简单示例\"</span>\n }\n}\n</code></pre>\n<p>如果你看了<a href=\"#%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86\">amis工作原理</a>应该不难理解,这里注册一个 React 组件,当节点的 path 信息是 <code>my-renderer</code> 结尾时,交给当前组件来完成渲染。\n如果你只写叶子节点的渲染器已经可以不用看了如果你的渲染器中有容器需要可以放置其他节点那么接着看以下这段代码。</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-keyword\">import</span> * as <span class=\"hljs-type\">React</span> from <span class=\"hljs-symbol\">'reac</span>t';\n<span class=\"hljs-keyword\">import</span> {\n <span class=\"hljs-type\">Renderer</span>\n} from <span class=\"hljs-symbol\">'ami</span>s';\n\n<span class=\"hljs-meta\">@Renderer</span>({\n test: /(^|\\/)my\\-renderer2$/,\n})\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">CustomRenderer</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n render() {\n const {\n tip,\n body,\n render\n } = <span class=\"hljs-keyword\">this</span>.props;\n <span class=\"hljs-keyword\">return</span> (\n &lt;div&gt;\n &lt;p&gt;这是自定义组件:{tip}&lt;/p&gt;\n {body ? (\n &lt;div className=<span class=\"hljs-string\">\"container\"</span>&gt;\n {render(<span class=\"hljs-symbol\">'bod</span>y', body, {\n <span class=\"hljs-comment\">// 这里的信息会作为 props 传递给子组件,一般情况下都不需要这个</span>\n })}\n &lt;/div&gt;\n ) : <span class=\"hljs-literal\">null</span>}\n &lt;/div&gt;\n );\n }\n}\n</code></pre>\n<p>有了以上这段代码后,就可以这样使用了。</p>\n<pre><code class=\"lang-json\">{\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"page\"</span>,\n <span class=\"hljs-attr\">\"title\"</span>: <span class=\"hljs-string\">\"自定义组件示例\"</span>,\n <span class=\"hljs-attr\">\"body\"</span>: {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"my-renderer2\"</span>,\n <span class=\"hljs-attr\">\"tip\"</span>: <span class=\"hljs-string\">\"简单示例\"</span>,\n <span class=\"hljs-attr\">\"body\"</span>: {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"form\"</span>,\n <span class=\"hljs-attr\">\"controls\"</span>: [\n {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"text\"</span>,\n <span class=\"hljs-attr\">\"label\"</span>: <span class=\"hljs-string\">\"用户名\"</span>,\n <span class=\"hljs-attr\">\"name\"</span>: <span class=\"hljs-string\">\"usename\"</span>\n }\n ]\n }\n }\n}\n</code></pre>\n<p>跟第一个列子不同的地方是,这里多了个 <code>render</code> 方法,这个方法就是专门用来渲染子节点的。来看下参数说明:</p>\n<ul>\n<li><code>region</code> 区域名称,你有可能有多个区域可以作为容器,请不要重复。</li>\n<li><code>node</code> 子节点。</li>\n<li><code>props</code> 可选,可以通过此对象跟子节点通信等。</li>\n</ul>\n<p>以上是普通渲染器的注册方式,如果是表单项,为了更简单的扩充,请使用 <code>FormItem</code> 注解,而不是 <code>Renderer</code>。 原因是如果用 <code>FormItem</code> 是不用关心label怎么摆表单验证器怎么实现如何适配表单的3中展现方式水平、上下和内联模式而只用关心有了值后如何回显响应用户交互设置新值。</p>\n<pre><code class=\"lang-jsx\"><span class=\"hljs-keyword\">import</span> * <span class=\"hljs-keyword\">as</span> React <span class=\"hljs-keyword\">from</span> <span class=\"hljs-string\">'react'</span>;\n<span class=\"hljs-keyword\">import</span> {\n FormItem\n} <span class=\"hljs-keyword\">from</span> <span class=\"hljs-string\">'amis'</span>;\n\n@FormItem({\n <span class=\"hljs-attr\">type</span>: <span class=\"hljs-string\">'custom'</span>\n})\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class</span> <span class=\"hljs-title\">MyFormItem</span> <span class=\"hljs-keyword\">extends</span> <span class=\"hljs-title\">React</span>.<span class=\"hljs-title\">Component</span> </span>{\n render() {\n <span class=\"hljs-keyword\">const</span> {\n value,\n onChange\n } = <span class=\"hljs-keyword\">this</span>.props;\n\n <span class=\"hljs-keyword\">return</span> (\n <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">div</span>&gt;</span>\n <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p</span>&gt;</span>这个是个自定义组件<span class=\"hljs-tag\">&lt;/<span class=\"hljs-name\">p</span>&gt;</span>\n <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p</span>&gt;</span>当前值:{value}<span class=\"hljs-tag\">&lt;/<span class=\"hljs-name\">p</span>&gt;</span>\n <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">a</span> <span class=\"hljs-attr\">className</span>=<span class=\"hljs-string\">\"btn btn-default\"</span> <span class=\"hljs-attr\">onClick</span>=<span class=\"hljs-string\">{()</span> =&gt;</span> onChange(Math.round(Math.random() * 10000))}&gt;随机修改<span class=\"hljs-tag\">&lt;/<span class=\"hljs-name\">a</span>&gt;</span>\n <span class=\"hljs-tag\">&lt;/<span class=\"hljs-name\">div</span>&gt;</span></span>\n );\n }\n}\n</code></pre>\n<p>有了以上这段代码后,就可以这样使用了。</p>\n<pre><code class=\"lang-json\">{\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"page\"</span>,\n <span class=\"hljs-attr\">\"title\"</span>: <span class=\"hljs-string\">\"自定义组件示例\"</span>,\n <span class=\"hljs-attr\">\"body\"</span>: {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"form\"</span>,\n <span class=\"hljs-attr\">\"controls\"</span>: [\n {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"text\"</span>,\n <span class=\"hljs-attr\">\"label\"</span>: <span class=\"hljs-string\">\"用户名\"</span>,\n <span class=\"hljs-attr\">\"name\"</span>: <span class=\"hljs-string\">\"usename\"</span>\n },\n\n {\n <span class=\"hljs-attr\">\"type\"</span>: <span class=\"hljs-string\">\"custom\"</span>,\n <span class=\"hljs-attr\">\"label\"</span>: <span class=\"hljs-string\">\"随机值\"</span>,\n <span class=\"hljs-attr\">\"name\"</span>: <span class=\"hljs-string\">\"randon\"</span>\n }\n ]\n }\n}\n</code></pre>\n<blockquote>\n<p>注意: 使用 FormItem 默认是严格模式,即只有必要的属性变化才会重新渲染,有可能满足不了你的需求,如果忽略性能问题,可以传入 <code>strictMode</code>: <code>false</code> 来关闭。</p>\n</blockquote>\n<p>以上的例子都是需要先注册组件,然后再使用的,如果你在自己项目中使用,还有更简单的用法,以下示例直接无需注册。</p>\n<pre><code class=\"lang-jsx\">{\n <span class=\"hljs-string\">\"type\"</span>: <span class=\"hljs-string\">\"page\"</span>,\n <span class=\"hljs-string\">\"title\"</span>: <span class=\"hljs-string\">\"自定义组件示例\"</span>,\n <span class=\"hljs-string\">\"body\"</span>: {\n <span class=\"hljs-string\">\"type\"</span>: <span class=\"hljs-string\">\"form\"</span>,\n <span class=\"hljs-string\">\"controls\"</span>: [\n {\n <span class=\"hljs-string\">\"type\"</span>: <span class=\"hljs-string\">\"text\"</span>,\n <span class=\"hljs-string\">\"label\"</span>: <span class=\"hljs-string\">\"用户名\"</span>,\n <span class=\"hljs-string\">\"name\"</span>: <span class=\"hljs-string\">\"usename\"</span>\n },\n\n {\n <span class=\"hljs-string\">\"name\"</span>: <span class=\"hljs-string\">\"a\"</span>,\n <span class=\"hljs-string\">\"children\"</span>: ({\n value,\n onChange\n }) =&gt; (\n &lt;div&gt;\n &lt;p&gt;这个是个自定义组件&lt;/p&gt;\n &lt;p&gt;当前值:{value}&lt;/p&gt;\n &lt;a className=<span class=\"hljs-string\">\"btn btn-default\"</span> onClick={() =&gt; onChange(<span class=\"hljs-name\">Math.round</span>(<span class=\"hljs-name\">Math.random</span>() * <span class=\"hljs-number\">10000</span>))}&gt;随机修改&lt;/a&gt;\n &lt;/div&gt;\n )\n }\n ]\n }\n}\n</code></pre>\n<p>即:通过 <code>children</code> 传递一个React组件这个示例是一个React Stateless Functional Component也可以是传统的 React 组件。\n任何节点如果包含 <code>children</code> 这个属性,则都会把当前节点交给 <code>children</code> 来处理,跳过了从 amis 渲染器池子中选择渲染器的过程。</p>\n",
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