{"id":62333,"date":"2024-10-13T18:08:17","date_gmt":"2024-10-13T10:08:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62333\/"},"modified":"2024-10-13T18:08:17","modified_gmt":"2024-10-13T10:08:17","slug":"listview%e5%af%a6%e7%8f%be%e4%b8%8a%e6%8b%89%e5%88%b7%e6%96%b0%ef%bc%9a%e9%ab%98%e6%95%88%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab-listview%e4%b8%8a%e6%8b%89%e5%88%b7%e6%96%b0%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62333\/","title":{"rendered":"Listview\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\uff1a\u9ad8\u6548\u64cd\u4f5c\u6578\u64da\u5eab (listview\u4e0a\u62c9\u5237\u65b0\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"listview%e5%af%a6%e7%8f%be%e4%b8%8a%e6%8b%89%e5%88%b7%e6%96%b0%ef%bc%9a%e9%ab%98%e6%95%88%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab-KxUuMuULgR\">Listview\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\uff1a\u9ad8\u6548\u64cd\u4f5c\u6578\u64da\u5eab<\/h1>\n<p>\u5728\u73fe\u4ee3\u79fb\u52d5\u61c9\u7528\u958b\u767c\u4e2d\uff0cListView\u662f\u4e00\u500b\u5e38\u898b\u7684\u7d44\u4ef6\uff0c\u7528\u65bc\u986f\u793a\u5927\u91cf\u6578\u64da\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u5df2\u6210\u70ba\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728ListView\u4e2d\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\uff0c\u4e26\u9ad8\u6548\u64cd\u4f5c\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e4%b8%8a%e6%8b%89%e5%88%b7%e6%96%b0%e5%8a%9f%e8%83%bd%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-KxUuMuULgR\">\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u5141\u8a31\u7528\u6236\u5728\u6efe\u52d5\u5230\u5217\u8868\u5e95\u90e8\u6642\u81ea\u52d5\u52a0\u8f09\u66f4\u591a\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u986f\u793a\u5927\u91cf\u6578\u64da\u7684\u61c9\u7528\u5c24\u70ba\u91cd\u8981\u3002\u9019\u7a2e\u4ea4\u4e92\u65b9\u5f0f\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7528\u6236\u7684\u53c3\u8207\u5ea6\uff0c\u9084\u80fd\u6e1b\u5c11\u7528\u6236\u7684\u64cd\u4f5c\u6b65\u9a5f\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u4f7f\u7528\u9ad4\u9a57\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e4%b8%8a%e6%8b%89%e5%88%b7%e6%96%b0%e5%8a%9f%e8%83%bd%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-KxUuMuULgR\">\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u8981\u5728ListView\u4e2d\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\uff0c\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u8a2d\u7f6eListView\u7684\u9069\u914d\u5668<\/li>\n<li>\u76e3\u807dListView\u7684\u6efe\u52d5\u4e8b\u4ef6<\/li>\n<li>\u5728\u6efe\u52d5\u5230\u5217\u8868\u5e95\u90e8\u6642\u89f8\u767c\u6578\u64da\u52a0\u8f09<\/li>\n<li>\u66f4\u65b0ListView\u7684\u6578\u64da\u6e90<\/li>\n<\/ul>\n<h3 id=\"1-%e8%a8%ad%e7%bd%aelistview%e7%9a%84%e9%81%a9%e9%85%8d%e5%99%a8-KxUuMuULgR\">1. \u8a2d\u7f6eListView\u7684\u9069\u914d\u5668<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500b\u9069\u914d\u5668\u4f86\u7ba1\u7406ListView\u4e2d\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u9069\u914d\u5668\u793a\u4f8b\uff1a<\/p>\n<pre><code>public class MyAdapter extends BaseAdapter {\n    private List data;\n    private Context context;\n\n    public MyAdapter(Context context, List data) {\n        this.context = context;\n        this.data = data;\n    }\n\n    @Override\n    public int getCount() {\n        return data.size();\n    }\n\n    @Override\n    public Object getItem(int position) {\n        return data.get(position);\n    }\n\n    @Override\n    public long getItemId(int position) {\n        return position;\n    }\n\n    @Override\n    public View getView(int position, View convertView, ViewGroup parent) {\n        \/\/ \u9019\u88e1\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u6bcf\u500b\u9805\u76ee\u7684\u986f\u793a\n        return convertView;\n    }\n}<\/code><\/pre>\n<h3 id=\"2-%e7%9b%a3%e8%81%bdlistview%e7%9a%84%e6%bb%be%e5%8b%95%e4%ba%8b%e4%bb%b6-KxUuMuULgR\">2. \u76e3\u807dListView\u7684\u6efe\u52d5\u4e8b\u4ef6<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u76e3\u807dListView\u7684\u6efe\u52d5\u4e8b\u4ef6\uff0c\u4ee5\u4fbf\u5728\u7528\u6236\u6efe\u52d5\u5230\u5217\u8868\u5e95\u90e8\u6642\u89f8\u767c\u6578\u64da\u52a0\u8f09\u3002\u53ef\u4ee5\u4f7f\u7528OnScrollListener\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>listView.setOnScrollListener(new AbsListView.OnScrollListener() {\n    @Override\n    public void onScrollStateChanged(AbsListView view, int scrollState) {}\n\n    @Override\n    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {\n        if (firstVisibleItem + visibleItemCount &gt;= totalItemCount &amp;&amp; totalItemCount &gt; 0) {\n            \/\/ \u89f8\u767c\u6578\u64da\u52a0\u8f09\n            loadMoreData();\n        }\n    }\n});<\/code><\/pre>\n<h3 id=\"3-%e5%8a%a0%e8%bc%89%e6%95%b8%e6%93%9a-KxUuMuULgR\">3. \u52a0\u8f09\u6578\u64da<\/h3>\n<p>\u7576\u7528\u6236\u6efe\u52d5\u5230\u5217\u8868\u5e95\u90e8\u6642\uff0c\u6211\u5011\u9700\u8981\u5f9e\u6578\u64da\u5eab\u4e2d\u52a0\u8f09\u66f4\u591a\u6578\u64da\u3002\u9019\u88e1\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u52a0\u8f09\u793a\u4f8b\uff1a<\/p>\n<pre><code>private void loadMoreData() {\n    \/\/ \u5047\u8a2d\u9019\u88e1\u662f\u5f9e\u6578\u64da\u5eab\u7372\u53d6\u6578\u64da\u7684\u908f\u8f2f\n    List newData = fetchDataFromDatabase();\n    data.addAll(newData);\n    adapter.notifyDataSetChanged();\n}<\/code><\/pre>\n<h2 id=\"%e9%ab%98%e6%95%88%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab-KxUuMuULgR\">\u9ad8\u6548\u64cd\u4f5c\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u6642\uff0c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u63d0\u9ad8\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7570\u6b65\u4efb\u52d9\uff1a<\/strong>\u5728\u4e3b\u7dda\u7a0b\u4e2d\u57f7\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6703\u5c0e\u81f4\u61c9\u7528\u5361\u9813\uff0c\u56e0\u6b64\u61c9\u4f7f\u7528AsyncTask\u6216\u5176\u4ed6\u7570\u6b65\u8655\u7406\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u5206\u9801\u52a0\u8f09\uff1a<\/strong>\u70ba\u4e86\u6e1b\u5c11\u4e00\u6b21\u6027\u52a0\u8f09\u7684\u6578\u64da\u91cf\uff0c\u53ef\u4ee5\u5be6\u73fe\u5206\u9801\u52a0\u8f09\uff0c\u50c5\u52a0\u8f09\u7576\u524d\u9801\u9762\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u7d22\u5f15\u512a\u5316\uff1a<\/strong>\u78ba\u4fdd\u6578\u64da\u5eab\u4e2d\u7684\u67e5\u8a62\u5b57\u6bb5\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KxUuMuULgR\">\u7e3d\u7d50<\/h2>\n<p>\u5728ListView\u4e2d\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\u529f\u80fd\u4e0d\u50c5\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\uff0c\u9084\u80fd\u6709\u6548\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002\u901a\u904e\u8a2d\u7f6e\u9069\u914d\u5668\u3001\u76e3\u807d\u6efe\u52d5\u4e8b\u4ef6\u4ee5\u53ca\u9ad8\u6548\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u6211\u5011\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u6d41\u66a2\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u4f3a\u670d\u5668\u67b6\u69cb\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u63d0\u5347\u61c9\u7528\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728ListView\u4e2d\u5be6\u73fe\u4e0a\u62c9\u5237\u65b0\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\uff0c\u8b93\u7528\u6236\u9ad4\u9a57\u66f4\u6d41\u66a2\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-62333","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=62333"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62333\/revisions"}],"predecessor-version":[{"id":62334,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62333\/revisions\/62334"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}