{"id":4449,"date":"2021-07-30T10:48:59","date_gmt":"2021-07-30T02:48:59","guid":{"rendered":"http:\/\/122.152.205.50\/wordpress\/?p=4449"},"modified":"2021-08-30T17:31:28","modified_gmt":"2021-08-30T09:31:28","slug":"itemdecoration","status":"publish","type":"post","link":"http:\/\/xinyiworld.top\/wordpress_it\/?p=4449","title":{"rendered":"ItemDecoration"},"content":{"rendered":"<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.jishudog.com\/9055\/html\">https:\/\/www.jishudog.com\/9055\/html<\/a><\/p>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/blog.csdn.net\/ww897532167\/article\/details\/86187058\">https:\/\/blog.csdn.net\/ww897532167\/article\/details\/86187058<\/a><\/p>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.cnblogs.com\/apkbus\/p\/5506301.html\">https:\/\/www.cnblogs.com\/apkbus\/p\/5506301.html<\/a> (***)<\/p>\n<h4>\u4e00\u3001ItemDecoration\u7684\u63a5\u53e3\u65b9\u6cd5<\/h4>\n<ul>\n<li>getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state)<\/li>\n<\/ul>\n<p>outRect.set(50, 50, 50, 50):\u4f1a\u8f6c\u5316\u6210item\u5de6\u4e0a\u53f3\u4e0b\u7684padding\u503c<\/p>\n<ul>\n<li>onDraw(Canvas c, RecyclerView parent, RecyclerView.State state)<br \/>\n\u5c06\u88c5\u9970\u7ed8\u5236\u5230RecyclerView\u63d0\u4f9b\u7684\u753b\u5e03\u4e0a<\/li>\n<\/ul>\n<blockquote><p>\n  Google\u81ea\u5e26\u7684DividerItemDecoration\u7c7b\u6e90\u7801\u5206\u6790\n<\/p><\/blockquote>\n<p>\u4ee5\u7ad6\u5411\u5217\u8868\u4e3a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java line-numbers\">private void drawVertical(Canvas canvas, RecyclerView parent) {\n        canvas.save();\n        final int left;\n        final int right;\n        \/\/noinspection AndroidLintNewApi - NewApi lint fails to handle overrides.\n    \/\/clipToPadding\u7528\u6765\u5b9a\u4e49ViewGroup\u662f\u5426\u5141\u8bb8\u5728padding\u4e2d\u7ed8\u5236\u3002\n        if (parent.getClipToPadding()) {\n            left = parent.getPaddingLeft();\n            right = parent.getWidth() - parent.getPaddingRight();\n            canvas.clipRect(left, parent.getPaddingTop(), right,\n                    parent.getHeight() - parent.getPaddingBottom());\n        } else {\n            left = 0;\n            right = parent.getWidth();\n        }\n\n        final int childCount = parent.getChildCount();\n        for (int i = 0; i &lt; childCount; i++) {\n            final View child = parent.getChildAt(i);\n            parent.getDecoratedBoundsWithMargins(child, mBounds);\n            final int bottom = mBounds.bottom + Math.round(child.getTranslationY());\n            final int top = bottom - mDivider.getIntrinsicHeight();\n            mDivider.setBounds(left, top, right, bottom);\n            mDivider.draw(canvas);\n        }\n        canvas.restore();\n    }\n<\/code><\/pre>\n<p>\u7cfb\u7edf\u7684DividerItemDecoration\u6e90\u7801\u6bd4\u4e00\u822c\u7684\u535a\u5ba2\u6e90\u7801\u5199\u7684\u66f4\u52a0\u8be6\u7ec6\uff0c\u8003\u8651\u5230\u4e86clipToPadding\u8fd9\u4e2a\u7279\u6b8a\u7684\u5c5e\u6027\u3002<\/p>\n<p>\u4ee5\u67d0\u4e2aposition\u7684layoutparams\u4e3a\u57fa\u51c6\uff0c\u53bb\u7ed8\u5236\u88c5\u9970View\u3002<\/p>\n<button class=\"simplefavorite-button\" data-postid=\"4449\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"0\" style=\"\">\u6536\u85cf <i class=\"sf-icon-star-empty\"><\/i><\/button>","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.jishudog.com\/9055\/html https:\/\/blog.cs [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184],"tags":[],"_links":{"self":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/4449"}],"collection":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4449"}],"version-history":[{"count":7,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/4449\/revisions"}],"predecessor-version":[{"id":4524,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/4449\/revisions\/4524"}],"wp:attachment":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4449"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}