{"id":1245,"date":"2023-03-18T09:37:03","date_gmt":"2023-03-18T01:37:03","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1245"},"modified":"2023-04-29T09:30:37","modified_gmt":"2023-04-29T01:30:37","slug":"recyclerview-gridlayoutmanager-implements-complex-layout-with-varying-column-counts","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/18\/recyclerview-gridlayoutmanager-implements-complex-layout-with-varying-column-counts\/","title":{"rendered":"RecyclerView GridLayoutManager\u5b9e\u73b0\u590d\u6742\u7684\u5217\u6570\u53d8\u5316\u7684\u5e03\u5c40"},"content":{"rendered":"<p>\u9047\u5230\u590d\u6742\u7684\u4e0d\u89c4\u5219\u5217\uff08\u5373\u6709\u7684\u884c\u663e\u793a\u7684\u5217\u6570\u591a\uff0c\u6709\u7684\u884c\u663e\u793a\u7684\u5217\u6570\u5c11\uff0c\u5e76\u4e14\u6bcf\u5217\u663e\u793a\u7684\u5185\u5bb9\u9875\u4e0d\u4e00\u6837\uff09\u3002\u5bf9\u4e8e\u8fd9\u79cd\u9700\u6c42\u5728RecyclerView\u51fa\u6765\u4e4b\u524d\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u8981\u4e48\u5c31\u662fListView\u4e2d\u5d4c\u5957GirdView\uff0c\u8981\u4e48\u5c31\u76f4\u63a5\u4f7f\u7528ScrollView\uff0c\u52c9\u5f3a\u53ef\u4ee5\u5b9e\u73b0\u6b64\u6548\u679c\uff0c\u4f46\u662f\u8fd9\u4e24\u79cd\u5b9e\u73b0\u90fd\u6709\u975e\u5e38\u5927\u7684\u7f3a\u9677\uff0c\u5373\u90fd\u4e0d\u80fd\u8fdb\u884citem\u7684\u590d\u7528\u3002<\/p>\n<h2>GridLayoutManager.SpanSizeLookup<\/h2>\n<p><!-- more --><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528<code>GridLayoutManager<\/code>\u7ed3\u5408<code>GridLayoutManager.SpanSizeLookup<\/code>\u7684\u76f8\u5173\u529f\u80fd\u5b9e\u73b0\uff0c\u521b\u5efa<code>GridLayoutManager<\/code>\u65f6\u5217\u6570\u586b\u5199\u6240\u6709\u53ef\u80fd\u5217\u6570\u7684\u6700\u5c0f\u516c\u500d\u6570\u3002\u518d\u7ed3\u5408Aadapter\u4e2d\u7684\uff1a<\/p>\n<pre><code class=\"language-java\">@Override\npublic int getItemViewType(int position) {\n    return position == 0 ? 0 : type;\n}<\/code><\/pre>\n<p>\u5373\u53ef\u5b9e\u73b0\u3002\u5b9e\u73b0\u7684\u5173\u952e\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-java\">GridLayoutManager layoutManager = new GridLayoutManager(getActivity(), 2);\nlayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {\n    @Override\n    public int getSpanSize(int position) {\n        return position == 0 ? 2 : 1;  \/\/\u6b64\u53e5\u4ee3\u7801\u8bbe\u7f6e\u5bf9\u5e94position\u4f4d\u7f6eitem\u7684\u8de8\u5217\u6570\uff0c\u7b2c\u4e00\u884c\u663e\u793a\u4e00\u5217\uff0c\u5176\u4ed6\u884c\u663e\u793a\u4e24\u5217\n    }\n});\nrecyclerView.setLayoutManager(layoutManager);<\/code><\/pre>\n<h2>GridLayoutManager\u8bbe\u7f6e\u67d0\u4e2aitem\u7c7b\u578b\u5360\u636e\u7684\u5217\u6570<\/h2>\n<pre><code class=\"language-java\">\/**\n * \u5c06RecyclerView\u7f51\u683c\u5e03\u5c40\u4e2d\u7684\u67d0\u4e2aitem\u8bbe\u7f6e\u4e3a\u72ec\u5360\u4e00\u884c\u3001\u53ea\u5360\u4e00\u5217\uff0c\u53ea\u5360\u4e24\u5217\u7b49\u7b49\n * @param gridLayoutManager\n *\/\nprivate void setSpanCount(GridLayoutManager gridLayoutManager) {\n    gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {\n        @Override\n        public int getSpanSize(int position) {\n            int type = getItemViewType(position);\n            if (type == TYPE_NORMAL_ITEM) {\n                return 1;  \/\/\u53ea\u5360\u4e00\u884c\u4e2d\u7684\u4e00\u5217\n            } else {\n                return gridLayoutManager.getSpanCount();  \/\/\u72ec\u5360\u4e00\u884c\n            }\n        }\n    });\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u9047\u5230\u590d\u6742\u7684\u4e0d\u89c4\u5219\u5217\uff08\u5373\u6709\u7684\u884c\u663e\u793a\u7684\u5217\u6570\u591a\uff0c\u6709\u7684\u884c\u663e\u793a\u7684\u5217\u6570\u5c11\uff0c\u5e76\u4e14\u6bcf\u5217\u663e\u793a\u7684\u5185\u5bb9\u9875\u4e0d\u4e00\u6837\uff09\u3002\u5bf9\u4e8e\u8fd9\u79cd\u9700\u6c42\u5728Re [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[65],"class_list":["post-1245","post","type-post","status-publish","format-standard","hentry","category-android-ui","tag-recyclerview"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1245"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1245\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}