{"id":9970,"date":"2023-06-11T10:52:52","date_gmt":"2023-06-11T08:52:52","guid":{"rendered":"https:\/\/geehootek.com\/what-is-the-difference-between-pageview-and-pageview-builder-in-use\/"},"modified":"2023-06-11T10:59:26","modified_gmt":"2023-06-11T08:59:26","slug":"what-is-the-difference-between-pageview-and-pageview-builder-in-use","status":"publish","type":"post","link":"https:\/\/geehootek.com\/zh-hans\/what-is-the-difference-between-pageview-and-pageview-builder-in-use\/","title":{"rendered":"PageView\u548cPageView.builder\u5728\u4f7f\u7528\u4e0a\u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"\n<p><code>PageView<\/code> \u662f Flutter \u4e2d\u7684\u4e00\u4e2a widget\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ef\u6eda\u52a8\u7684\u9875\u9762\u5217\u8868\u3002 \u5b83\u5141\u8bb8\u60a8\u4ee5\u6c34\u5e73\u6216\u5782\u76f4\u987a\u5e8f\u663e\u793a\u5185\u5bb9\uff0c\u5e76\u5141\u8bb8\u7528\u6237\u6ed1\u52a8\u6216\u6eda\u52a8\u9875\u9762\u3002<\/p>\n\n<p>\u4e0b\u9762\u662f\u5173\u4e8e <code>PageView<\/code>\u7684\u4e00\u4e9b\u5173\u952e\u70b9\uff1a<\/p>\n\n<ol class=\"wp-block-list\">\n<li>\u9875\u9762\uff1aPageView \u663e\u793a\u9875\u9762\u5217\u8868\uff0c\u5176\u4e2d\u6bcf\u4e2a\u9875\u9762\u901a\u5e38\u662f\u4e00\u4e2a\u5c0f\u90e8\u4ef6\u6216\u5c4f\u5e55\u3002 \u60a8\u53ef\u4ee5\u4f7f\u7528 children \u5c5e\u6027\u5c06\u9875\u9762\u4f5c\u4e3a\u5c0f\u90e8\u4ef6\u5217\u8868\u63d0\u4f9b\uff0c\u6216\u8005\u4f7f\u7528 PageView.builder \u52a8\u6001\u751f\u6210\u5b83\u4eec\u3002<\/li>\n\n\n\n<li>\u6eda\u52a8\uff1a\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u5411\u5de6\u3001\u5411\u53f3\u3001\u5411\u4e0a\u6216\u5411\u4e0b\u6ed1\u52a8\u6765\u6c34\u5e73\u6216\u5782\u76f4\u6eda\u52a8\u9875\u9762\u3002 \u53ef\u4ee5\u4f7f\u7528 scrollDirection\u3001physics \u548c pageSnapping \u7b49\u5c5e\u6027\u81ea\u5b9a\u4e49\u6eda\u52a8\u884c\u4e3a\u3002<\/li>\n\n\n\n<li>\u65e0\u9650\u6eda\u52a8\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cPageView \u652f\u6301\u65e0\u9650\u6eda\u52a8\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u5728\u5230\u8fbe\u7ed3\u5c3e\u65f6\u73af\u7ed5\u5230\u5f00\u5934\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002 \u53ef\u4ee5\u4f7f\u7528 allowImplicitScrolling \u5c5e\u6027\u63a7\u5236\u6b64\u884c\u4e3a\u3002<\/li>\n\n\n\n<li>\u9875\u9762\u6307\u793a\u5668\uff1aPageView \u4e0d\u63d0\u4f9b\u5185\u7f6e\u7684\u9875\u9762\u6307\u793a\u5668\u3002 \u60a8\u53ef\u4ee5\u624b\u52a8\u6dfb\u52a0\u9875\u9762\u6307\u793a\u5668\u6216\u4f7f\u7528\u7b2c\u4e09\u65b9\u5305\uff08\u5982 dots_indicator \u6216 smooth_page_indicator\uff09\u4f5c\u4e3a\u9884\u6837\u5f0f\u6307\u793a\u5668\u3002<\/li>\n\n\n\n<li>\u81ea\u5b9a\u4e49\uff1a\u60a8\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u5c5e\u6027\u81ea\u5b9a\u4e49 PageView \u7684\u5916\u89c2\u548c\u884c\u4e3a\uff0c\u4f8b\u5982\u7528\u4e8e\u7f16\u7a0b\u9875\u9762\u64cd\u4f5c\u7684\u63a7\u5236\u5668\u3001\u7528\u4e8e\u4fa6\u542c\u9875\u9762\u66f4\u6539\u7684 onPageChanged \u4ee5\u53ca\u7528\u4e8e\u5b9a\u4e49\u81ea\u5b9a\u4e49\u9875\u9762\u8f6c\u6362\u7684 pageBuilder\u3002<\/li>\n\n\n\n<li>\u5d4c\u5957\uff1aPageView \u53ef\u4ee5\u5d4c\u5957\u5728\u5176\u4ed6\u53ef\u6eda\u52a8\u5c0f\u90e8\u4ef6\uff08\u5982 ListView \u6216 ScrollView\uff09\u4e2d\uff0c\u4ee5\u521b\u5efa\u590d\u6742\u7684\u6eda\u52a8\u5e03\u5c40\u3002<\/li>\n<\/ol>\n\n<p>PageView \u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5c0f\u90e8\u4ef6\uff0c\u7528\u4e8e\u6784\u5efa\u5165\u804c\u5c4f\u5e55\u3001\u56fe\u7247\u5e93\u3001\u8f6e\u64ad\u7b49\u529f\u80fd\u3002 \u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u6d41\u7545\u7684\u4ea4\u4e92\u5f0f\u65b9\u5f0f\u6765\u6d4f\u89c8\u5185\u5bb9\u96c6\u5408\u3002<\/p>\n\n<h2 class=\"wp-block-heading\">PageView\u548cPageView.builder\u5728\u4f7f\u7528\u4e0a\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n\n<p>\u5f53\u60a8\u8981\u5728 PageView \u4e2d\u663e\u793a\u56fa\u5b9a\u6570\u91cf\u7684\u9875\u9762\u65f6\uff0c\u5c06\u4f7f\u7528 PageView\u3002 \u60a8\u53ef\u4ee5\u4f7f\u7528 children \u5c5e\u6027\u5c06 PageView \u7684\u5b50\u9879\u4f5c\u4e3a\u5c0f\u90e8\u4ef6\u5217\u8868\u63d0\u4f9b\u3002 \u4f8b\u5982\uff1a<\/p>\n\n<pre class=\"wp-block-code\"><code>PageView(\r\n  children: &#91;\r\n    \/\/ Pages go here\r\n    Page1(),\r\n    Page2(),\r\n    Page3(),\r\n  ],\r\n)\r\n<\/code><\/pre>\n\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u9700\u8981\u9884\u5148\u63d0\u4f9b\u6240\u6709\u9875\u9762\uff0cPageView \u5c0f\u90e8\u4ef6\u5c06\u5728\u5185\u90e8\u7ba1\u7406\u72b6\u6001\u3002<\/p>\n\n<p>\u5f53\u60a8\u60f3\u8981\u5728 PageView \u4e2d\u663e\u793a\u5927\u91cf\u6216\u52a8\u6001\u53d8\u5316\u7684\u9875\u9762\u65f6\uff0c\u4f7f\u7528 PageView.builder\u3002 \u60a8\u65e0\u9700\u9884\u5148\u63d0\u4f9b\u6240\u6709\u9875\u9762\uff0c\u800c\u662f\u63d0\u4f9b\u4e00\u4e2a\u6784\u5efa\u5668\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u4f1a\u5728\u7528\u6237\u6eda\u52a8\u6d4f\u89c8 PageView \u65f6\u6309\u9700\u751f\u6210\u9875\u9762\u3002 \u4f8b\u5982\uff1a<\/p>\n\n<pre class=\"wp-block-code\"><code>PageView.builder(\r\n  itemCount: itemCount,\r\n  itemBuilder: (context, index) {\r\n    \/\/ Generate and return a page based on the index\r\n    return Page(index);\r\n  },\r\n)\r\n<\/code><\/pre>\n\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0citemCount \u8868\u793a\u9875\u9762\u603b\u6570\uff0c\u5e76\u4e14\u4e3a\u6bcf\u4e2a\u9875\u9762\u8c03\u7528 itemBuilder \u51fd\u6570\u3002 itemBuilder \u51fd\u6570\u63d0\u4f9b\u6b63\u5728\u6784\u5efa\u7684\u9875\u9762\u7684 BuildContext \u548c\u7d22\u5f15\u3002 \u60a8\u53ef\u4ee5\u4f7f\u7528\u6b64\u4fe1\u606f\u751f\u6210\u5e76\u8fd4\u56de\u9002\u5f53\u7684\u9875\u9762\u5c0f\u90e8\u4ef6\u3002<\/p>\n\n<p>PageView \u548c PageView.builder \u4e4b\u95f4\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u60a8\u7684\u5177\u4f53\u7528\u4f8b\u3002 \u5982\u679c\u60a8\u6709\u56fa\u5b9a\u6570\u91cf\u7684\u9875\u9762\u6216\u53ef\u4ee5\u9884\u5148\u63d0\u4f9b\u7684\u5c11\u91cf\u9875\u9762\uff0cPageView \u662f\u4e00\u4e2a\u7b80\u5355\u76f4\u63a5\u7684\u9009\u9879\u3002 \u5982\u679c\u60a8\u6709\u5927\u91cf\u9875\u9762\u6216\u9875\u9762\u6570\u91cf\u53ef\u4ee5\u52a8\u6001\u66f4\u6539\uff0cPageView.builder \u5141\u8bb8\u60a8\u6309\u9700\u751f\u6210\u9875\u9762\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u5185\u5b58\u4f7f\u7528\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PageView \u662f Flutter \u4e2d<\/p>\n","protected":false},"author":1,"featured_media":9967,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[149],"tags":[],"class_list":["post-9970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-flutter-zh-hans"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/9970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=9970"}],"version-history":[{"count":1,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/9970\/revisions"}],"predecessor-version":[{"id":9971,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/9970\/revisions\/9971"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/media\/9967"}],"wp:attachment":[{"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=9970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=9970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geehootek.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=9970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}