{"id":3534,"date":"2021-01-13T15:18:35","date_gmt":"2021-01-13T07:18:35","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3303"},"modified":"2021-01-13T15:18:35","modified_gmt":"2021-01-13T07:18:35","slug":"%e4%bd%bf%e7%94%a8lightning-web%e7%bb%84%e4%bb%b6%e6%9e%84%e5%bb%babear-tracking%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f-%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e5%ad%90%e7%bb%84%e4%bb%b6%e5%b9%b6%e4%b8%8e-2","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3534","title":{"rendered":"\u4f7f\u7528Lightning Web\u7ec4\u4ef6\u6784\u5efaBear-tracking\u5e94\u7528\u7a0b\u5e8f &#8211; \u521b\u5efa\u4e00\u4e2a\u5b50\u7ec4\u4ef6\u5e76\u4e0e\u4e4b\u4ea4\u4e92"},"content":{"rendered":"<h1 class=\"slds-p-top_small slds-text-heading_large\">\u521b\u5efa\u4e00\u4e2a\u5b50\u7ec4\u4ef6\u5e76\u4e0e\u4e4b\u4ea4\u4e92<\/h1>\n<div class=\"unit-content\">\n<p>\u5728\u524d\u9762\u7684\u6b65\u9aa4\u4e2d\uff0c\u6211\u4eec\u7684\u4ee3\u7801\u5e93\u6709\u6240\u589e\u52a0\u3002\u73b0\u5728\uff0c\u82b1\u4e00\u70b9\u65f6\u95f4\u5c06\u6211\u4eec\u7684\u6e05\u5355\u5217\u8868\u7ec4\u4ef6\u91cd\u6784\u4e3a\u51e0\u4e2a\u8f83\u5c0f\u7684\u7ec4\u4ef6\u3002\u6211\u4eec\u5c06\u628a\u718a\u724c\u7684\u4ee3\u7801\u79fb\u5230\u4e00\u4e2a\u65b0\u7684\u7ec4\u4ef6\u4e2d\u3002<\/p>\n<h2 id=\"create-the-bear-tile-component\">\u521b\u5efaBear Tile\u7ec4\u4ef6<\/h2>\n<ol>\n<li>\u5728VS Code\u4e2d\uff0c\u53f3\u952e\u5355\u51fb\u8be5<code>lwc<\/code>\u6587\u4ef6\u5939\uff0c\u7136\u540e\u5355\u51fb<strong>SFDX\uff1aCreate Lightning Web Component<\/strong>\u3002<\/li>\n<li>\u547d\u540d\u7ec4\u4ef6<code>bearTile<\/code>\u3002<\/li>\n<li>\u6253\u5f00<code>bearList.html<\/code>\u5e76\u526a\u5207<code>&lt;!-- Start bear tile --&gt;<\/code>\u548c\u4e4b\u95f4\u7684\u6240\u6709\u4ee3\u7801<code>&lt;!-- End bear tile --&gt;<\/code>\u3002<\/li>\n<li>\u5c06\u4ee3\u7801\u7c98\u8d34\u5230\u7684<code>template<\/code>\u6807\u7b7e\u4e2d<code>bearTile.html<\/code>\u3002\u5b8c\u6210\u540e\uff0c<code>bearTile.html<\/code>\u5e94\u5982\u4e0b\u6240\u793a\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"bear-tile\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-p-horizontal_small bear-tile-body\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media__figure\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>img src<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>appResources<span class=\"token punctuation\">.<\/span>bearSilhouette<span class=\"token punctuation\">}<\/span> alt<span class=\"token operator\">=<\/span><span class=\"token string\">\"Bear profile\"<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"bear-silhouette\"<\/span><span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media__body\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Sex__c<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Age__c<\/span><span class=\"token punctuation\">}<\/span> years old<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Height__c<\/span><span class=\"token punctuation\">}<\/span> cm<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Weight__c<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token class-name\">Kg<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<code>bearTile.js<\/code>\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">ursusResources<\/span> from <span class=\"token string\">'@salesforce\/resourceUrl\/ursus_park'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BearTile<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n\t<span class=\"token annotation punctuation\">@api<\/span> bear<span class=\"token punctuation\">;<\/span>\n\tappResources <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\n\t\tbearSilhouette<span class=\"token operator\">:<\/span> `$<span class=\"token punctuation\">{<\/span>ursusResources<span class=\"token punctuation\">}<\/span><span class=\"token operator\">\/<\/span>img<span class=\"token operator\">\/<\/span>standing<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>silhouette<span class=\"token punctuation\">.<\/span>png`<span class=\"token punctuation\">,<\/span>\n\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a<code>bear<\/code>\u88c5\u9970\u6709\u7684\u5c5e\u6027<code>@api<\/code>\u3002\u8fd9\u4f1a\u5c06<code>bear<\/code>\u5c5e\u6027\u516c\u5f00\u7ed9\u4efb\u4f55\u7236\u7ec4\u4ef6\u3002<\/li>\n<li>\u5220\u9664<code>bearList.css<\/code>\u3002<\/li>\n<li><code>bearTile.css<\/code>\u5728<code>bearTile<\/code>\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff0c\u5e76\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7c98\u8d34\u5230\u8be5\u6587\u4ef6\u4e2d\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">.<\/span>bear<span class=\"token operator\">-<\/span>tile <span class=\"token punctuation\">{<\/span>\n  border<span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span>px solid #d2955d<span class=\"token punctuation\">;<\/span>\n  background<span class=\"token operator\">-<\/span>color<span class=\"token operator\">:<\/span> #fae8d2<span class=\"token punctuation\">;<\/span>\n  border<span class=\"token operator\">-<\/span>radius<span class=\"token operator\">:<\/span> <span class=\"token number\">.25<\/span>rem<span class=\"token punctuation\">;<\/span>\n  display<span class=\"token operator\">:<\/span> block<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">.<\/span>bear<span class=\"token operator\">-<\/span>silhouette <span class=\"token punctuation\">{<\/span>\n  height<span class=\"token operator\">:<\/span> <span class=\"token number\">100<\/span>px<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">.<\/span>bear<span class=\"token operator\">-<\/span>tile<span class=\"token operator\">-<\/span>body <span class=\"token punctuation\">{<\/span>\n  background<span class=\"token operator\">:<\/span> linear<span class=\"token operator\">-<\/span><span class=\"token function\">gradient<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">180d<\/span>eg<span class=\"token punctuation\">,<\/span> <span class=\"token function\">rgba<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token number\">80<\/span><span class=\"token operator\">%<\/span><span class=\"token punctuation\">,<\/span> #fae8d2 <span class=\"token number\">100<\/span><span class=\"token operator\">%<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u6253\u5f00<code>bearList.html<\/code>\u5e76\u66f4\u6362<code>&lt;!-- Start bear tile --&gt;<\/code>\u53ca<code>&lt;!-- End bear tile --&gt;<\/code>\u4e0e\u8bc4\u8bba<code>&lt;c-bear-tile bear={bear}&gt;&lt;\/c-bear-tile&gt;<\/code>\u3002\u4e00\u65e6\u5b8c\u6210\uff0c<code>bearList.html<\/code>\u00a0\u5e94\u8be5\u770b\u8d77\u6765\u50cf\u8fd9\u6837\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token string\">\"Bears\"<\/span> icon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"utility:animal_and_nature\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-card__body_inner\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">Start<\/span> bear list <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bears<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>input type<span class=\"token operator\">=<\/span><span class=\"token string\">\"search\"<\/span>\n\t\t\t\t\tonchange<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleSearchTermChange<span class=\"token punctuation\">}<\/span>\n\t\t\t\t\tvariant<span class=\"token operator\">=<\/span><span class=\"token string\">\"label-hidden\"<\/span>\n\t\t\t\t\t<span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_small\"<\/span>\n\t\t\t\t\tlabel<span class=\"token operator\">=<\/span><span class=\"token string\">\"Search\"<\/span>\n\t\t\t\t\tplaceholder<span class=\"token operator\">=<\/span><span class=\"token string\">\"Search for bears\"<\/span>\n\t\t\t\t\tvalue<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>searchTerm<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>input<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>layout multiple<span class=\"token operator\">-<\/span>rows<span class=\"token operator\">=<\/span><span class=\"token string\">\"true\"<\/span> pull<span class=\"token operator\">-<\/span><span class=\"token keyword\">to<\/span><span class=\"token operator\">-<\/span>boundary<span class=\"token operator\">=<\/span><span class=\"token string\">\"small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>each<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bears<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>item<span class=\"token operator\">=<\/span><span class=\"token string\">\"bear\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">-<\/span>item key<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Id<\/span><span class=\"token punctuation\">}<\/span> size<span class=\"token operator\">=<\/span><span class=\"token string\">\"3\"<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-p-around_x-small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>c<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>tile bear<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>c<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>tile<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">-<\/span>item<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">No<\/span> bears found <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">false<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>hasResults<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-align_absolute-center slds-var-m-vertical_small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t<span class=\"token class-name\">This<\/span> is beary disturbing<span class=\"token punctuation\">,<\/span> we did not find results<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">End<\/span> bear list <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">Data<\/span> failed <span class=\"token keyword\">to<\/span> <span class=\"token namespace\">load<\/span> <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bears<span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-text-color_error\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token class-name\">An<\/span> error occurred <span class=\"token keyword\">while<\/span> loading the bear list\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u8fd9<code>bear<\/code>\u5c06\u4f7f\u7528\u6211\u4eec\u5728\u524d\u9762\u7684\u6b65\u9aa4\u4e2d\u5b9a\u4e49\u7684\u5c5e\u6027\u5f15\u7528\u6211\u4eec\u7684Bear Tile\u7ec4\u4ef6\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u7684\u7ec4\u4ef6\u6587\u4ef6\u5939\u548c\u6587\u4ef6\u5df2\u547d\u540d<code>bearTile<\/code>\uff0c\u4f46\u6211\u4eec\u6dfb\u52a0\u7684\u6807\u7b7e\u662f<code>c-bear-tile<\/code>\u3002\u5f00\u5934<code>c<\/code>\u4ee3\u8868\u9ed8\u8ba4\u540d\u79f0\u7a7a\u95f4\uff0c\u5728\u540d\u79f0\u7a7a\u95f4\u540e\u9644\u52a0\u5c0f\u5199\u5b57\u6bcd\uff0c\u5e76\u7528\u7834\u6298\u53f7\u5206\u9694\u4ee5\u524d\u7684\u5927\u5199\u5b57\u6bcd\u3002<\/li>\n<li>\u5c06\u66f4\u65b0\u7684\u4ee3\u7801\u90e8\u7f72\u5230\u7ec4\u7ec7\u4e2d\u5e76\u6d4b\u8bd5\u60a8\u7684\u65b0\u5217\u8868\u7ec4\u4ef6\u3002\u7ec6\u5fae\u7684\u6e10\u53d8\u770b\u8d77\u6765\u5e94\u8be5\u66f4\u597d\u3002<\/li>\n<\/ol>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/projects\/lwc-build-flexible-apps\/composition\/images\/9b5de8305c9b753f53a216e1478b9194_bear-tiles.png\" alt=\"Ursus Park\u4e3b\u9875\u4e0a\u5177\u6709\u81ea\u5b9a\u4e49\u6837\u5f0f\u7684\u718a\u5217\u8868\" width=\"800\" height=\"308\" \/><\/p>\n<h2 id=\"interact-with-the-bear-list-component\">\u4e0eBear List\u7ec4\u4ef6\u8fdb\u884c\u4ea4\u4e92<\/h2>\n<p>\u6e38\u9a91\u5175\u8981\u6c42\u80fd\u591f\u5feb\u901f\u67e5\u770b\u718a\u8bb0\u5f55\u5e76\u5bf9\u5176\u8fdb\u884c\u7f16\u8f91\uff0c\u800c\u4e0d\u5fc5\u79bb\u5f00\u4e3b\u9875\u3002\u8ba9\u6211\u4eec\u5355\u51fb\u718a\u5f62\u56fe\u5757\uff0c\u7136\u540e\u6253\u5f00\u4e00\u4e2a\u53ef\u7f16\u8f91\u7684\u718a\u5f62\u8bb0\u5f55\u8868\u683c\u3002<\/p>\n<ol>\n<li>\u7f16\u8f91<code>bearTile.html<\/code>\u4ee5\u4e0b\u4ee3\u7801\u5e76\u5c06\u5176\u6dfb\u52a0\u5230<code>&lt;lightning-card title={bear.Name} class=\"bear-tile\"&gt;<\/code>\u6807\u7b7e\u4e4b\u540e\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>div slot<span class=\"token operator\">=<\/span><span class=\"token string\">\"actions\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>button<span class=\"token operator\">-<\/span>icon\n\t\ticon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"utility:search\"<\/span>\n\t\ticon<span class=\"token operator\">-<\/span><span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"bear-tile-button\"<\/span>\n\t\tvariant<span class=\"token operator\">=<\/span><span class=\"token string\">\"bare\"<\/span>\n\t\talternative<span class=\"token operator\">-<\/span>text<span class=\"token operator\">=<\/span><span class=\"token string\">\"Open record\"<\/span>\n\t\tonclick<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleOpenRecordClick<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>button<span class=\"token operator\">-<\/span>icon<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a\u89e6\u53d1\u8be5<code>handleOpenRecordClick<\/code>\u529f\u80fd\u7684\u7f16\u8f91\u6309\u94ae\u3002\u4f7f\u7528<code>actions<\/code>\u63d2\u69fd\u5c06\u6309\u94ae\u653e\u7f6e\u5728\u95ea\u7535\u5361\u4e0a\u3002\u63d2\u69fd\u662f\u7236\u7ec4\u4ef6\u4f20\u9012\u5230\u7ec4\u4ef6\u4e3b\u4f53\u7684\u6807\u8bb0\u7684\u5360\u4f4d\u7b26\u3002<\/li>\n<li><code>bearTile.js<\/code>\u5728\u6700\u540e\u4e00\u4e2a\u62ec\u53f7\u4e4b\u524d\u7f16\u8f91\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u529f\u80fd\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token function\">handleOpenRecordClick<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t<span class=\"token keyword\">const<\/span> selectEvent <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CustomEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'bearview'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n\t\tdetail<span class=\"token operator\">:<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Id<\/span>\n\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">dispatchEvent<\/span><span class=\"token punctuation\">(<\/span>selectEvent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u4ee3\u7801\u91cd\u70b9\uff1a<\/p>\n<ul>\n<li><code>handleOpenRecordClick<\/code>\u5f53\u7528\u6237\u5355\u51fb\u718a\u56fe\u5757\u7684\u6253\u5f00\u8bb0\u5f55\u6309\u94ae\u65f6\uff0c\u5c06\u8c03\u7528\u8be5\u51fd\u6570\u3002<\/li>\n<li>\u8be5\u51fd\u6570\u521b\u5efa\u5e76\u89e6\u53d1\u4e00\u4e2a<code>bearview<\/code>\u5305\u542b\u718a\u8bb0\u5f55ID\u7684\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7f16\u8f91\u5c5e\u6027<code>bearList.html<\/code>\u5e76\u5c06\u5176\u6dfb\u52a0<code>onbearview={handleBearView}<\/code>\u5230<code>c-bear-tile<\/code>\u6807\u7b7e\u3002\u8fd9\u4f7f\u6211\u4eec\u80fd\u591f\u6355\u83b7<code>bearview<\/code>\u7531tile\u7ec4\u4ef6\u89e6\u53d1\u7684\u4e8b\u4ef6\u3002\u8be5\u4e8b\u4ef6\u5728<code>handleBearView<\/code>\u51fd\u6570\u4e2d\u5904\u7406\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>c<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>tile bear<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">}<\/span> onbearview<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleBearView<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>c<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>tile<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<code>bearList.js<\/code>\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">NavigationMixin<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/navigation'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/** BearController.searchBears(searchTerm) Apex method *\/<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">searchBears<\/span> from <span class=\"token string\">'@salesforce\/apex\/BearController.searchBears'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BearList<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">NavigationMixin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\tsearchTerm <span class=\"token operator\">=<\/span> <span class=\"token string\">''<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>searchBears<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>searchTerm<span class=\"token operator\">:<\/span> <span class=\"token string\">'$searchTerm'<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n\tbears<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token function\">handleSearchTermChange<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token comment\">\/\/ Debouncing this method: do not update the reactive property as<\/span>\n\t\t<span class=\"token comment\">\/\/ long as this function is being called within a delay of 300 ms.<\/span>\n\t\t<span class=\"token comment\">\/\/ This is to avoid a very large number of Apex method calls.<\/span>\n\t\twindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">clearTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>delayTimeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">const<\/span> searchTerm <span class=\"token operator\">=<\/span> event<span class=\"token punctuation\">.<\/span>target<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/ eslint-disable-next-line @lwc\/lwc\/no-async-operation<\/span>\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>delayTimeout <span class=\"token operator\">=<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>searchTerm <span class=\"token operator\">=<\/span> searchTerm<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">300<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\tget <span class=\"token function\">hasResults<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>bears<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\t<span class=\"token function\">handleBearView<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token comment\">\/\/ Get bear record id from bearview event<\/span>\n\t\t<span class=\"token keyword\">const<\/span> bearId <span class=\"token operator\">=<\/span> event<span class=\"token punctuation\">.<\/span>detail<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/ Navigate to bear record page<\/span>\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">[<\/span><span class=\"token class-name\">NavigationMixin<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Navigate<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span>\n\t\t\ttype<span class=\"token operator\">:<\/span> <span class=\"token string\">'standard__recordPage'<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\tattributes<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t\t\trecordId<span class=\"token operator\">:<\/span> bearId<span class=\"token punctuation\">,<\/span>\n\t\t\t\tobjectApiName<span class=\"token operator\">:<\/span> <span class=\"token string\">'Bear__c'<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\t\tactionName<span class=\"token operator\">:<\/span> <span class=\"token string\">'view'<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u4ee3\u7801\u91cd\u70b9\uff1a<\/p>\n<ul>\n<li>\u6211\u4eec\u5bfc\u5165\u4e00\u4e2a\u5bfc\u822amixin\uff0c\u5b83\u6346\u7ed1\u4e86\u5904\u7406\u5bfc\u822a\u7684\u5b9e\u7528\u7a0b\u5e8f\u529f\u80fd\u3002\u4f7f\u7528mixin\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u6269\u5c55\u7c7b\u7684\u60c5\u51b5\u4e0b\u5411\u5176\u6dfb\u52a0\u529f\u80fd\u3002\u5f53\u4e00\u4e2a\u7c7b\u5df2\u7ecf\u6269\u5c55\u4e86\u4e00\u4e2a\u7236\u7c7b\uff08\u4e00\u4e2a\u7c7b\u53ea\u80fd\u6269\u5c55\u4e00\u4e2a\u7236\u7c7b\uff09\u65f6\uff0c\u8fd9\u5f88\u6709\u7528\u3002<\/li>\n<li>\u6211\u4eec\u7684\u8bfe\u7a0b\u5c06\u5bfc\u822a\u6df7\u5165\u6269\u5c55\u5230\u4e86<code>LightningElement<\/code>\u57fa\u7840\u7c7b\u3002<\/li>\n<li>\u6211\u4eec<code>bearview<\/code>\u5728<code>handleBearView<\/code>\u51fd\u6570\u4e2d\u5904\u7406\u4e8b\u4ef6\u3002\u6211\u4eec\u4ece\u4e8b\u4ef6\u8be6\u7ec6\u4fe1\u606f\u4e2d\u63d0\u53d6\u718a\u8bb0\u5f55ID\uff0c\u5e76\u4f7f\u7528\u5bfc\u822amixin\u5bfc\u822a\u5230\u718a\u8bb0\u5f55\u9875\u9762\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5c06\u66f4\u65b0\u7684\u4ee3\u7801\u90e8\u7f72\u5230\u7ec4\u7ec7\u4e2d\uff0c\u5e76\u6d4b\u8bd5\u60a8\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u56fe\u5757\u4e0a\u7684\u6309\u94ae\u56fe\u6807\u5bfc\u822a\u5230\u718a\u8bb0\u5f55\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u5c31\u662f\u6b65\u9aa4\u3002\u6211\u4eec\u5df2\u7ecf\u5c06\u7ec4\u4ef6\u91cd\u6784\u4e3a\u4e24\u4e2a\u8f83\u5c0f\u7684\u7ec4\u4ef6\uff1aBear\u5217\u8868\u548cBear 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