{"id":8857,"date":"2025-09-09T21:06:33","date_gmt":"2025-09-09T12:06:33","guid":{"rendered":"https:\/\/code-plus.jp\/gp\/?p=8857"},"modified":"2026-01-08T11:13:24","modified_gmt":"2026-01-08T02:13:24","slug":"swiper-autoplay-8857","status":"publish","type":"post","link":"https:\/\/code-plus.jp\/gp\/swiper-autoplay-8857\/","title":{"rendered":"Swiper\u306e\u81ea\u52d5\u518d\u751f\u304c\u300c\u306a\u305c\u300d\u6b62\u307e\u308b\u306e\u304b\uff1f<br>\u672c\u8cea\u304b\u3089\u7406\u89e3\u3059\u308b\u8a2d\u5b9a\u30ac\u30a4\u30c9"},"content":{"rendered":"<p>\u300cSwiper \u306e\u81ea\u52d5\u518d\u751f\u304c\u6b62\u307e\u308a\u307e\u3059...\u300d\u3068\u306e\u5831\u544a\u3092\u53d7\u3051\u307e\u3057\u305f\u3002<\/p>\r\n\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u3068\u9593\u9055\u3044\u306a\u304f <code>autoplay: true<\/code> \u306f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u52d5\u4f5c\u78ba\u8a8d\u3092\u3059\u308b\u3068\u3001\u6700\u521d\u306f\u6b63\u5e38\u306b\u81ea\u52d5\u518d\u751f\u3055\u308c\u308b\u3082\u306e\u306e\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5c11\u3057\u64cd\u4f5c\u3059\u308b\u3068\u6b62\u307e\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\r\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Swiper \u306e\u8868\u9762\u7684\u306a\u8a2d\u5b9a\u65b9\u6cd5\u3067\u306f\u306a\u304f\u3001Swiper \u306e\u81ea\u52d5\u518d\u751f\u306e\u4ed5\u7d44\u307f\u3092\u6839\u672c\u304b\u3089\u7406\u89e3\u3057\u3001\u78ba\u5b9f\u306b\u52d5\u4f5c\u3059\u308b\u5b9f\u88c5\u65b9\u6cd5\u3002\u300c\u306a\u305c\u81ea\u52d5\u518d\u751f\u304c\u6b62\u307e\u308b\u306e\u304b\u300d\u306e\u672c\u8cea\u306e\u7406\u89e3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\r\n\r\n<!-- \u2605\u76ee\u6b21\u30ea\u30b9\u30c8 -->\r\n<ul class=\"tocList mt-1r\" data-toc-id=\"js-tocBWGD\"><\/ul>\r\n<ins class=\"tocBtn is-fixed\" data-toc-id=\"js-tocBWGD\"><\/ins>\r\n<!-- \u76ee\u6b21\uff1aJS -->\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocList.js\"><\/script>\r\n<script src=\"https:\/\/code-plus.jp\/cdn\/js\/_gimmicks\/inppend-tocBtn.js\"><\/script>\r\n\r\n\r\n\r\n\r\n<h2 class=\"fz-xl\">\u306a\u305c\u300cautoplay: true\u300d\u3060\u3051\u3067\u306f\u8db3\u308a\u306a\u3044\u306e\u304b<\/h2>\r\n<p>\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u9665\u308b\u6700\u521d\u306e\u8aa4\u89e3\u304c\u3053\u3053\u306b\u3042\u308a\u307e\u3059\u3002<code>autoplay: true<\/code> \u306f\u300c\u81ea\u52d5\u518d\u751f\u3092\u6709\u52b9\u306b\u3059\u308b\u300d\u8a2d\u5b9a\u3067\u3042\u3063\u3066\u3001\u300c\u5e38\u306b\u81ea\u52d5\u518d\u751f\u3057\u7d9a\u3051\u308b\u300d\u8a2d\u5b9a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\r\n<h3 class=\"fz-ml\">\u30d6\u30e9\u30a6\u30b6\u306e\u81ea\u52d5\u518d\u751f\u30dd\u30ea\u30b7\u30fc\u304c\u5909\u308f\u308a\u307e\u3057\u305f<\/h3>\r\n<p>2018\u5e74\u4ee5\u964d\u3001\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306f\u300c\u81ea\u52d5\u518d\u751f\u30dd\u30ea\u30b7\u30fc\u300d\u3092\u5927\u5e45\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002Chrome 66\u3001Safari 11.1\u3001Firefox 66 \u304b\u3089\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u660e\u793a\u7684\u306a\u64cd\u4f5c\u306a\u3057\u306b\u97f3\u58f0\u3084\u52d5\u753b\u306e\u81ea\u52d5\u518d\u751f\u3092\u5236\u9650\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\r\n<p>\u3053\u306e\u5909\u66f4\u306e\u80cc\u666f\u306b\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306e\u5411\u4e0a\u304c\u3042\u308a\u307e\u3059\u3002\u4e88\u671f\u3057\u306a\u3044\u97f3\u58f0\u3084\u52d5\u753b\u306e\u81ea\u52d5\u518d\u751f\u306f\u3001\u30c7\u30fc\u30bf\u901a\u4fe1\u91cf\u306e\u5897\u52a0\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u6d88\u8cbb\u3001\u6ce8\u610f\u529b\u306e\u6563\u6f2b\u3092\u5f15\u304d\u8d77\u3053\u3059\u305f\u3081\u3067\u3059\u3002<\/p>\r\n<p>Swiper \u306e\u3088\u3046\u306a UI \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3082\u3001\u3053\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u30b1\u30fc\u30b9\u3067\u81ea\u52d5\u518d\u751f\u304c\u5236\u9650\u3055\u308c\u307e\u3059\uff1a<\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n  <li>\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u76f4\u5f8c\uff08\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u524d\uff09<\/li>\r\n  <li>\u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u3067\u306e\u8868\u793a<\/li>\r\n  <li>\u7701\u96fb\u529b\u30e2\u30fc\u30c9\u304c\u6709\u52b9\u306a\u74b0\u5883<\/li>\r\n<\/ul>\r\n<h3 class=\"fz-ml\">\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u304c\u5fc5\u8981\u306a\u7406\u7531<\/h3>\r\n<p>\u30d6\u30e9\u30a6\u30b6\u304c\u6c42\u3081\u308b\u300c\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u300d\u3068\u306f\u5177\u4f53\u7684\u306b\u4f55\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u306a\u305c\u81ea\u52d5\u518d\u751f\u304c\u6b62\u307e\u308b\u306e\u304b\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\r\n<p><b class=\"bold\">\u6709\u52b9\u306a\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c<\/b><\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n  <li>\u30af\u30ea\u30c3\u30af\u3001\u30bf\u30c3\u30d7<\/li>\r\n  <li>\u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c\uff08\u30a8\u30f3\u30bf\u30fc\u30ad\u30fc\u3001\u30b9\u30da\u30fc\u30b9\u30ad\u30fc\u306a\u3069\uff09<\/li>\r\n  <li>\u30b9\u30ef\u30a4\u30d7\u3001\u30c9\u30e9\u30c3\u30b0<\/li>\r\n<\/ul>\r\n<p><b class=\"bold\">\u7121\u52b9\u306a\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c<\/b><\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n  <li>\u30da\u30fc\u30b8\u30b9\u30af\u30ed\u30fc\u30eb<\/li>\r\n  <li>\u30de\u30a6\u30b9\u30db\u30d0\u30fc<\/li>\r\n  <li>\u30d5\u30a9\u30fc\u30ab\u30b9\u79fb\u52d5\u306e\u307f<\/li>\r\n<\/ul>\r\n<p>\u3064\u307e\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u7684\u306b\u884c\u3046\u64cd\u4f5c\u306e\u307f\u304c\u300c\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u300d\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">\u30e2\u30d0\u30a4\u30eb\u3068\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u306e\u9055\u3044<\/h3>\r\n<p>\u3055\u3089\u306b\u8907\u96d1\u306a\u306e\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u3068\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u3067\u81ea\u52d5\u518d\u751f\u306e\u6319\u52d5\u304c\u7570\u306a\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\r\n<p><b class=\"bold\">\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30d6\u30e9\u30a6\u30b6<\/b><\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n  <li>\u6bd4\u8f03\u7684\u5bdb\u5bb9\u306a\u81ea\u52d5\u518d\u751f\u30dd\u30ea\u30b7\u30fc<\/li>\r\n  <li>\u30bf\u30d6\u304c\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u9593\u306f\u7d99\u7d9a\u3057\u3084\u3059\u3044<\/li>\r\n<\/ul>\r\n<p><b class=\"bold\">\u30e2\u30d0\u30a4\u30eb\u30d6\u30e9\u30a6\u30b6<\/b><\/p>\r\n<ul style=\"list-style-type:bullet;\">\r\n  <li>\u3088\u308a\u53b3\u683c\u306a\u81ea\u52d5\u518d\u751f\u30dd\u30ea\u30b7\u30fc<\/li>\r\n  <li>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u306b\u79fb\u308b\u3068\u5373\u5ea7\u306b\u505c\u6b62<\/li>\r\n  <li>\u30d0\u30c3\u30c6\u30ea\u30fc\u6b8b\u91cf\u306b\u3088\u3063\u3066\u3082\u5236\u9650<\/li>\r\n<\/ul>\r\n<h2 class=\"fz-xl\">Swiper \u304c\u81ea\u52d5\u518d\u751f\u3092\u505c\u6b62\u3059\u308b5\u3064\u306e\u6761\u4ef6<\/h2>\r\n<p>Swiper \u306e\u5185\u90e8\u5b9f\u88c5\u3092\u8a73\u3057\u304f\u8abf\u3079\u308b\u3068\u3001\u81ea\u52d5\u518d\u751f\u304c\u505c\u6b62\u3055\u308c\u308b\u6761\u4ef6\u304c\u660e\u78ba\u306b\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">1. \u30e6\u30fc\u30b6\u30fc\u304c\u30b9\u30ef\u30a4\u30d7\u3057\u305f\u6642<\/h3>\r\n<p>\u3053\u308c\u306f\u6700\u3082\u4e00\u822c\u7684\u306a\u505c\u6b62\u6761\u4ef6\u3067\u3059\u3002Swiper \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u624b\u52d5\u3067\u30b9\u30e9\u30a4\u30c9\u3092\u64cd\u4f5c\u3057\u305f\u77ac\u9593\u306b\u81ea\u52d5\u518d\u751f\u3092\u505c\u6b62\u3057\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-javascript\">\/\/ Swiper\u5185\u90e8\u306e\u51e6\u7406\uff08\u7c21\u7565\u5316\uff09\r\nswiper.on(&#39;touchStart&#39;, () =&gt; {\r\nif (swiper.autoplay.running) {\r\nswiper.autoplay.stop();\r\n}\r\n});\r\n<\/code><\/pre>\r\n<p>\u3053\u306e\u52d5\u4f5c\u306f UX \u306e\u89b3\u70b9\u3067\u306f\u6b63\u3057\u3044\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u624b\u52d5\u3067\u64cd\u4f5c\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u81ea\u52d5\u518d\u751f\u304c\u7d9a\u884c\u3055\u308c\u308b\u3068\u6df7\u4e71\u3092\u62db\u304f\u304b\u3089\u3067\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">2. \u30bf\u30d6\u304c\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u306a\u3063\u305f\u6642<\/h3>\r\n<p>\u30d6\u30e9\u30a6\u30b6\u306e Page Visibility API \u306b\u3088\u308a\u3001\u30bf\u30d6\u304c\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u306a\u308b\u3068\u81ea\u52d5\u518d\u751f\u304c\u505c\u6b62\u3055\u308c\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-javascript\">document.addEventListener(&#39;visibilitychange&#39;, () =&gt; {\r\nif (document.hidden) {\r\nswiper.autoplay.stop();\r\n} else {\r\nswiper.autoplay.start();\r\n}\r\n});\r\n<\/code><\/pre>\r\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u5fa9\u5e30\u51e6\u7406\u306f\u78ba\u5b9f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u3063\u3066\u306f\u3001\u30bf\u30d6\u3092\u518d\u5ea6\u30a2\u30af\u30c6\u30a3\u30d6\u306b\u3057\u3066\u3082\u81ea\u52d5\u7684\u306b\u306f\u518d\u958b\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">3. \u7701\u96fb\u529b\u30e2\u30fc\u30c9\u304c\u6709\u52b9\u306a\u6642<\/h3>\r\n<p>\u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u306e\u7701\u96fb\u529b\u30e2\u30fc\u30c9\u3067\u306f\u3001\u4e0d\u8981\u306a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3084\u5b9a\u671f\u51e6\u7406\u304c\u5236\u9650\u3055\u308c\u307e\u3059\u3002Swiper \u306e\u81ea\u52d5\u518d\u751f\u3082\u4f8b\u5916\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\r\n<pre><code class=\"language-javascript\">\/\/ \u30d0\u30c3\u30c6\u30ea\u30fc API \u306b\u3088\u308b\u691c\u51fa\uff08\u5b9f\u9a13\u7684\uff09\r\nif (&#39;getBattery&#39; in navigator) {\r\nnavigator.getBattery().then(battery =&gt; {\r\nif (battery.level &lt; 0.2) {\r\n\/\/ \u7701\u96fb\u529b\u30e2\u30fc\u30c9\u306e\u53ef\u80fd\u6027\r\nswiper.autoplay.stop();\r\n}\r\n});\r\n}\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">4. Intersection Observer \u306b\u3088\u308b\u53ef\u8996\u6027\u5236\u5fa1<\/h3>\r\n<p>Swiper v8 \u4ee5\u964d\u3067\u306f\u3001Intersection Observer API \u3092\u4f7f\u7528\u3057\u3066\u3001\u30b9\u30e9\u30a4\u30c0\u30fc\u304c\u753b\u9762\u5916\u306b\u3042\u308b\u6642\u306e\u81ea\u52d5\u518d\u751f\u3092\u5236\u5fa1\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-javascript\">const observer = new IntersectionObserver((entries) =&gt; {\r\nentries.forEach(entry =&gt; {\r\nif (entry.isIntersecting) {\r\nswiper.autoplay.start();\r\n} else {\r\nswiper.autoplay.stop();\r\n}\r\n});\r\n});\r\nobserver.observe(swiperContainer);\r\n<\/code><\/pre>\r\n<p>\u3053\u308c\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306e\u89b3\u70b9\u3067\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u671f\u5f85\u3057\u305f\u52d5\u4f5c\u3068\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">5. \u30e1\u30e2\u30ea\u4e0d\u8db3\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u52a3\u5316<\/h3>\r\n<p>JavaScript\u30a8\u30f3\u30b8\u30f3\u306e\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3084\u30e1\u30e2\u30ea\u4e0d\u8db3\u306b\u3088\u308a\u3001\u30bf\u30a4\u30de\u30fc\u51e6\u7406\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u3084\u3001\u30e1\u30e2\u30ea\u3092\u591a\u304f\u6d88\u8cbb\u3059\u308b\u30da\u30fc\u30b8\u3067\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<h2 class=\"fz-xl\">\u78ba\u5b9f\u306b\u52d5\u4f5c\u3059\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/h2>\r\n<p>\u3053\u308c\u307e\u3067\u306e\u5206\u6790\u3092\u8e0f\u307e\u3048\u3001\u78ba\u5b9f\u306b\u52d5\u4f5c\u3059\u308b Swiper \u306e\u81ea\u52d5\u518d\u751f\u5b9f\u88c5\u3092\u6bb5\u968e\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\r\n<h3 class=\"fz-ml\">\u57fa\u672c\u8a2d\u5b9a\uff1a\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u5b9f\u88c5<\/h3>\r\n<pre><code class=\"language-javascript\">const swiper = new Swiper(&#39;.swiper&#39;, {\r\nautoplay: {\r\ndelay: 3000,\r\ndisableOnInteraction: false,  \/\/ \u91cd\u8981\uff1a\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u5f8c\u3082\u7d99\u7d9a\r\npauseOnMouseEnter: true,      \/\/ UX\u914d\u616e\uff1a\u30db\u30d0\u30fc\u6642\u306f\u505c\u6b62\r\n},\r\n\/\/ \u81ea\u52d5\u518d\u751f\u306e\u7d99\u7d9a\u6027\u3092\u9ad8\u3081\u308b\u8a2d\u5b9a\r\nwatchSlidesProgress: true,\r\nobserver: true,\r\nobserveParents: true,\r\n\/\/ \u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u914d\u616e\r\na11y: {\r\nenabled: true,\r\nprevSlideMessage: &#39;\u524d\u306e\u30b9\u30e9\u30a4\u30c9&#39;,\r\nnextSlideMessage: &#39;\u6b21\u306e\u30b9\u30e9\u30a4\u30c9&#39;,\r\n}\r\n});\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u5fdc\u7528\u8a2d\u5b9a\uff1a\u30ed\u30d0\u30b9\u30c8\u306a\u81ea\u52d5\u518d\u751f\u5236\u5fa1<\/h3>\r\n<pre><code class=\"language-javascript\">class RobustSwiperAutoplay {\r\nconstructor(selector, options = {}) {\r\nthis.swiper = new Swiper(selector, {\r\n...options,\r\nautoplay: {\r\ndelay: options.delay || 3000,\r\ndisableOnInteraction: false,\r\n...options.autoplay\r\n}\r\n});\r\nthis.setupAutoplayControl();\r\n}\r\nsetupAutoplayControl() {\r\n\/\/ \u30bf\u30d6\u306e\u53ef\u8996\u6027\u5909\u66f4\u3092\u76e3\u8996\r\ndocument.addEventListener(&#39;visibilitychange&#39;, () =&gt; {\r\nif (document.hidden) {\r\nthis.swiper.autoplay.stop();\r\n} else {\r\n\/\/ \u9045\u5ef6\u3092\u5165\u308c\u3066\u78ba\u5b9f\u306b\u518d\u958b\r\nsetTimeout(() =&gt; {\r\nthis.swiper.autoplay.start();\r\n}, 100);\r\n}\r\n});\r\n\/\/ \u30a6\u30a3\u30f3\u30c9\u30a6\u30d5\u30a9\u30fc\u30ab\u30b9\u5236\u5fa1\r\nwindow.addEventListener(&#39;blur&#39;, () =&gt; {\r\nthis.swiper.autoplay.stop();\r\n});\r\nwindow.addEventListener(&#39;focus&#39;, () =&gt; {\r\nsetTimeout(() =&gt; {\r\nthis.swiper.autoplay.start();\r\n}, 100);\r\n});\r\n\/\/ Intersection Observer \u306b\u3088\u308b\u53ef\u8996\u6027\u5236\u5fa1\r\nconst observer = new IntersectionObserver((entries) =&gt; {\r\nentries.forEach(entry =&gt; {\r\nif (entry.isIntersecting &amp;&amp; entry.intersectionRatio &gt; 0.1) {\r\nthis.swiper.autoplay.start();\r\n} else {\r\nthis.swiper.autoplay.stop();\r\n}\r\n});\r\n}, {\r\nthreshold: 0.1\r\n});\r\nobserver.observe(this.swiper.el);\r\n}\r\n\/\/ \u5916\u90e8\u304b\u3089\u306e\u5236\u5fa1\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\r\nforceStart() {\r\nthis.swiper.autoplay.start();\r\n}\r\nforceStop() {\r\nthis.swiper.autoplay.stop();\r\n}\r\n}\r\n\/\/ \u4f7f\u7528\u4f8b\r\nconst robustSwiper = new RobustSwiperAutoplay(&#39;.swiper&#39;, {\r\ndelay: 4000,\r\neffect: &#39;fade&#39;\r\n});\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h3>\r\n<p>\u81ea\u52d5\u518d\u751f\u304c\u671f\u5f85\u901a\u308a\u306b\u52d5\u4f5c\u3057\u306a\u3044\u5834\u5408\u306e\u8a3a\u65ad\u624b\u9806\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\r\n<p><b class=\"bold\">1. \u57fa\u672c\u8a2d\u5b9a\u306e\u78ba\u8a8d<\/b><\/p>\r\n<pre><code class=\"language-javascript\">\/\/ \u30c7\u30d0\u30c3\u30b0\u7528\uff1a\u81ea\u52d5\u518d\u751f\u306e\u72b6\u614b\u3092\u76e3\u8996\r\nswiper.on(&#39;autoplayStart&#39;, () =&gt; {\r\nconsole.log(&#39;Autoplay started&#39;);\r\n});\r\nswiper.on(&#39;autoplayStop&#39;, () =&gt; {\r\nconsole.log(&#39;Autoplay stopped&#39;);\r\n});\r\nswiper.on(&#39;autoplayPause&#39;, () =&gt; {\r\nconsole.log(&#39;Autoplay paused&#39;);\r\n});\r\n<\/code><\/pre>\r\n<p><b class=\"bold\">2. \u30d6\u30e9\u30a6\u30b6\u30dd\u30ea\u30b7\u30fc\u306e\u78ba\u8a8d<\/b><\/p>\r\n<pre><code class=\"language-javascript\">\/\/ \u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306e\u691c\u51fa\r\nlet userInteracted = false;\r\ndocument.addEventListener(&#39;click&#39;, () =&gt; {\r\nuserInteracted = true;\r\nconsole.log(&#39;User interaction detected&#39;);\r\n}, { once: true });\r\n\/\/ \u81ea\u52d5\u518d\u751f\u958b\u59cb\u306e\u9045\u5ef6\r\nsetTimeout(() =&gt; {\r\nif (userInteracted) {\r\nswiper.autoplay.start();\r\n} else {\r\nconsole.warn(&#39;Autoplay may be blocked by browser policy&#39;);\r\n}\r\n}, 1000);\r\n<\/code><\/pre>\r\n<p><b class=\"bold\">3. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u72b6\u6cc1\u306e\u78ba\u8a8d<\/b><\/p>\r\n<pre><code class=\"language-javascript\">\/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u76e3\u8996\uff08Chrome DevTools\uff09\r\nif (&#39;memory&#39; in performance) {\r\nconsole.log(&#39;Memory usage:&#39;, performance.memory);\r\n}\r\n\/\/ \u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u306e\u76e3\u8996\r\nlet lastTime = performance.now();\r\nfunction checkFrameRate() {\r\nconst now = performance.now();\r\nconst fps = 1000 \/ (now - lastTime);\r\nlastTime = now;\r\nif (fps &lt; 30) {\r\nconsole.warn(&#39;Low FPS detected:&#39;, fps);\r\n}\r\nrequestAnimationFrame(checkFrameRate);\r\n}\r\ncheckFrameRate();\r\n<\/code><\/pre>\r\n<h2 class=\"fz-xl\">\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u640d\u306a\u308f\u306a\u3044\u81ea\u52d5\u518d\u751f\u306e\u8a2d\u8a08<\/h2>\r\n<p>\u6280\u8853\u7684\u306b\u52d5\u4f5c\u3059\u308b\u5b9f\u88c5\u304c\u3067\u304d\u3066\u3082\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u8003\u616e\u3057\u306a\u3051\u308c\u3070\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\r\n<h3 class=\"fz-ml\">\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3078\u306e\u914d\u616e<\/h3>\r\n<p>\u81ea\u52d5\u518d\u751f\u306f\u3001\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u3067\u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-javascript\">const swiper = new Swiper(&#39;.swiper&#39;, {\r\nautoplay: {\r\ndelay: 5000, \/\/ \u5341\u5206\u306a\u8aad\u53d6\u6642\u9593\u3092\u78ba\u4fdd\r\ndisableOnInteraction: false,\r\n},\r\n\/\/ \u30b9\u30af\u30ea\u30fc\u30f3\u30ea\u30fc\u30c0\u30fc\u5bfe\u5fdc\r\na11y: {\r\nenabled: true,\r\nslideRole: &#39;group&#39;,\r\nslideLabelMessage: &#39;\u30b9\u30e9\u30a4\u30c9 {{index}} \/ {{slidesLength}}&#39;,\r\n}\r\n});\r\n\/\/ \u505c\u6b62\u30fb\u518d\u958b\u30dc\u30bf\u30f3\u306e\u5b9f\u88c5\r\nconst playPauseBtn = document.querySelector(&#39;.play-pause-btn&#39;);\r\nlet isPlaying = true;\r\nplayPauseBtn.addEventListener(&#39;click&#39;, () =&gt; {\r\nif (isPlaying) {\r\nswiper.autoplay.stop();\r\nplayPauseBtn.textContent = &#39;\u518d\u751f&#39;;\r\nplayPauseBtn.setAttribute(&#39;aria-label&#39;, &#39;\u81ea\u52d5\u518d\u751f\u3092\u958b\u59cb&#39;);\r\n} else {\r\nswiper.autoplay.start();\r\nplayPauseBtn.textContent = &#39;\u505c\u6b62&#39;;\r\nplayPauseBtn.setAttribute(&#39;aria-label&#39;, &#39;\u81ea\u52d5\u518d\u751f\u3092\u505c\u6b62&#39;);\r\n}\r\nisPlaying = !isPlaying;\r\n});\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/h3>\r\n<p>\u81ea\u52d5\u518d\u751f\u304c\u30da\u30fc\u30b8\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u3088\u3046\u914d\u616e\u3057\u307e\u3059\u3002<\/p>\r\n<pre><code class=\"language-javascript\">\/\/ \u8907\u6570\u306e\u30b9\u30e9\u30a4\u30c0\u30fc\u304c\u3042\u308b\u5834\u5408\u306e\u5236\u5fa1\r\nclass SwiperManager {\r\nconstructor() {\r\nthis.swipers = [];\r\nthis.activeSwiper = null;\r\n}\r\naddSwiper(swiper) {\r\nthis.swipers.push(swiper);\r\n\/\/ \u753b\u9762\u5185\u306b\u5165\u3063\u305f\u6642\u306e\u307f\u81ea\u52d5\u518d\u751f\r\nconst observer = new IntersectionObserver((entries) =&gt; {\r\nentries.forEach(entry =&gt; {\r\nif (entry.isIntersecting) {\r\nthis.setActiveSwiper(swiper);\r\n} else if (this.activeSwiper === swiper) {\r\nthis.setActiveSwiper(null);\r\n}\r\n});\r\n});\r\nobserver.observe(swiper.el);\r\n}\r\nsetActiveSwiper(swiper) {\r\n\/\/ \u4ed6\u306e\u30b9\u30e9\u30a4\u30c0\u30fc\u3092\u505c\u6b62\r\nthis.swipers.forEach(s =&gt; {\r\nif (s !== swiper) {\r\ns.autoplay.stop();\r\n}\r\n});\r\n\/\/ \u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30b9\u30e9\u30a4\u30c0\u30fc\u3092\u958b\u59cb\r\nif (swiper) {\r\nswiper.autoplay.start();\r\n}\r\nthis.activeSwiper = swiper;\r\n}\r\n}\r\nconst manager = new SwiperManager();\r\nmanager.addSwiper(swiper1);\r\nmanager.addSwiper(swiper2);\r\n<\/code><\/pre>\r\n<h3 class=\"fz-ml\">\u505c\u6b62\u30fb\u518d\u958b\u306eUX\u8a2d\u8a08<\/h3>\r\n<p>\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u52d5\u518d\u751f\u3092\u5236\u5fa1\u3067\u304d\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u8a08\u4f8b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\r\n<pre><code class=\"language-css\">.swiper-controls {\r\nposition: absolute;\r\nbottom: 20px;\r\nright: 20px;\r\nz-index: 10;\r\n}\r\n.play-pause-btn {\r\nbackground: rgba(0, 0, 0, 0.7);\r\ncolor: white;\r\nborder: none;\r\nborder-radius: 50%;\r\nwidth: 44px;\r\nheight: 44px;\r\ncursor: pointer;\r\ntransition: background 0.3s ease;\r\n}\r\n.play-pause-btn:hover {\r\nbackground: rgba(0, 0, 0, 0.9);\r\n}\r\n.play-pause-btn:focus {\r\noutline: 2px solid #007bff;\r\noutline-offset: 2px;\r\n}\r\n<\/code><\/pre>\r\n<pre><code class=\"language-javascript\">\/\/ \u30d7\u30ed\u30b0\u30ec\u30b9\u30d0\u30fc\u306e\u5b9f\u88c5\r\nclass AutoplayProgress {\r\nconstructor(swiper, progressElement) {\r\nthis.swiper = swiper;\r\nthis.progressElement = progressElement;\r\nthis.setupProgress();\r\n}\r\nsetupProgress() {\r\nlet progressInterval;\r\nthis.swiper.on(&#39;autoplayStart&#39;, () =&gt; {\r\nconst delay = this.swiper.params.autoplay.delay;\r\nlet progress = 0;\r\nprogressInterval = setInterval(() =&gt; {\r\nprogress += 100 \/ (delay \/ 10);\r\nthis.progressElement.style.width = `${Math.min(progress, 100)}%`;\r\nif (progress &gt;= 100) {\r\nclearInterval(progressInterval);\r\n}\r\n}, 10);\r\n});\r\nthis.swiper.on(&#39;slideChangeTransitionStart&#39;, () =&gt; {\r\nclearInterval(progressInterval);\r\nthis.progressElement.style.width = &#39;0%&#39;;\r\n});\r\nthis.swiper.on(&#39;autoplayStop&#39;, () =&gt; {\r\nclearInterval(progressInterval);\r\n});\r\n}\r\n}\r\n<\/code><\/pre>\r\n<h2 class=\"fz-xl\">\u307e\u3068\u3081\uff1a<\/h2>\r\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u901a\u3058\u3066\u3001Swiper \u306e\u81ea\u52d5\u518d\u751f\u306f\u5358\u7d14\u306a\u8a2d\u5b9a\u554f\u984c\u3067\u306f\u306a\u304f\u3001\u30d6\u30e9\u30a6\u30b6\u30dd\u30ea\u30b7\u30fc\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u8907\u96d1\u306b\u7d61\u307f\u5408\u3063\u305f\u8ab2\u984c\u3067\u3042\u308b\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u3044\u305f\u3060\u3051\u305f\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\r\n<p><b class=\"bold\">\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/b><\/p>\r\n<ol style=\"list-style-type:decimal;\">\r\n  <li><b class=\"bold\"><code>autoplay: true<\/code> \u306f\u958b\u59cb\u70b9\u306b\u904e\u304e\u307e\u305b\u3093<\/b> - \u30d6\u30e9\u30a6\u30b6\u306e\u5236\u9650\u3068\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306e\u95a2\u4fc2\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046<\/li>\r\n  <li><b class=\"bold\">\u505c\u6b62\u6761\u4ef6\u3092\u628a\u63e1\u3057\u307e\u3057\u3087\u3046<\/b> - \u306a\u305c\u6b62\u307e\u308b\u306e\u304b\u3092\u77e5\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u5bfe\u7b56\u304c\u6253\u3066\u307e\u3059<\/li>\r\n  <li><b class=\"bold\">\u30ed\u30d0\u30b9\u30c8\u306a\u5b9f\u88c5\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046<\/b> - \u5358\u4e00\u306e\u8a2d\u5b9a\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u5236\u5fa1\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059<\/li>\r\n  <li><b class=\"bold\">\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u6700\u512a\u5148\u306b\u3057\u307e\u3057\u3087\u3046<\/b> - \u6280\u8853\u7684\u306b\u52d5\u4f5c\u3057\u3066\u3082\u3001UX\u304c\u60aa\u3051\u308c\u3070\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093<\/li>\r\n<\/ol>\r\n<p>\u8868\u9762\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u6c42\u3081\u304c\u3061\u306a\u73fe\u4ee3\u306e\u958b\u767a\u73fe\u5834\u3067\u3059\u304c\u3001\u672c\u8cea\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u521d\u3081\u3066\u3001\u78ba\u5b9f\u306b\u52d5\u4f5c\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u611b\u3055\u308c\u308b\u5b9f\u88c5\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u56de Swiper \u306e\u81ea\u52d5\u518d\u751f\u3067\u60a9\u3093\u3060\u6642\u306f\u3001\u300c\u306a\u305c\u6b62\u307e\u308b\u306e\u304b\u300d\u304b\u3089\u8003\u3048\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u601d\u8003\u30d7\u30ed\u30bb\u30b9\u3053\u305d\u304c\u3001\u512a\u308c\u305f\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u8005\u3078\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002<\/p>\r\n\r\n<a href=\"https:\/\/code-plus.jp\/gp\/swiper-autoplay-7803\/\" class=\"linkbox my-1.5r\">\r\n<h4 class=\"linkbox-title fz-md\">Swiper\u306eautoplay\uff08\u81ea\u52d5\u518d\u751f\uff09\u304c\u6b62\u307e\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u65b9\u6cd5<\/h4>\r\n<picture class=\"linkbox-thumbnail\">\r\n<img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/code-plus.jp\/gp\/wp-content\/uploads\/92e7b3b617517c7ec3197f7a5f573c63.jpg\" alt=\"Swiper\u306eautoplay\uff08\u81ea\u52d5\u518d\u751f\uff09\u304c\u6b62\u307e\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u65b9\u6cd5\" loading=\"lazy\" \/>\r\n<\/picture>\r\n<span class=\"linkbox-excerpt\">\u306f\u3058\u3081\u306bSwiper\u306e\u81ea\u52d5\u518d\u751f\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u969b\u3001disableOnInteraction: false\u3092\u8a2d\u5b9a\u3057\u3066\u3082\u3001\u6642\u3005\u30b9\u30e9\u30a4\u30c9\u304c\u6b62\u307e\u3063\u3066\u3057\u307e\u3046\u554f\u984c\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u539f\u56e0\u3068\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u554f\u984c\u306e\u539f\u56e0Swiper\u306e\u81ea\u52d5\u518d\u751f\u304c...\r\n&emsp;<u class=\"linkbox-more\">\u7d9a\u304d\u3092\u8aad\u3080<\/u>\r\n<\/span>\r\n<\/a>","protected":false},"excerpt":{"rendered":"\u300cSwiper \u306e\u81ea\u52d5\u518d\u751f\u304c\u6b62\u307e\u308a\u307e\u3059...\u300d\u3068\u306e\u5831\u544a\u3092\u53d7\u3051\u307e\u3057\u305f\u3002 \u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u3068\u9593\u9055\u3044\u306a\u304f autoplay: true \u306f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u52d5\u4f5c\u78ba\u8a8d\u3092\u3059\u308b\u3068\u3001\u6700\u521d\u306f\u6b63\u5e38\u306b\u81ea\u52d5\u518d\u751f\u3055\u308c\u308b\u3082\u306e\u306e\u3001[...]","protected":false},"author":1,"featured_media":9542,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[359,358,348,284,177,175,113],"class_list":{"0":"post-8857","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-javascript","8":"tag-359","9":"tag-358","10":"tag-348","11":"tag-swiper","12":"tag-177","13":"tag-175","14":"tag-javascript"},"_links":{"self":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/8857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/comments?post=8857"}],"version-history":[{"count":10,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/8857\/revisions"}],"predecessor-version":[{"id":9547,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/posts\/8857\/revisions\/9547"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media\/9542"}],"wp:attachment":[{"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/media?parent=8857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/categories?post=8857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/code-plus.jp\/gp\/wp-json\/wp\/v2\/tags?post=8857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}