https:\/\/github.com\/gabrielemariotti\/RecyclerViewItemAnimators<\/a>\u3002<\/p>\n\u6dfb\u52a0\u5206\u5272\u7ebf<\/h2>\n
RecycleView\u6ca1\u6709\u50cfListView\u53ef\u4ee5\u76f4\u63a5\u5728xml\u4e2d\u6dfb\u52a0android:divider\u5c5e\u6027\uff0c\u53ef\u80fd\u662f\u8003\u8651\u5230RecycleView\u7075\u6d3b\u591a\u53d8\u7684\u7279\u70b9\uff0c\u4e0d\u8fc7\u53ef\u4ee5\u624b\u52a8\u6dfb\u52a0\u3002RecyclerView.ItemDecoration\u62bd\u8c61\u7c7b\u5373\u7528\u4e8e\u6dfb\u52a0\u5206\u5272\u7ebf\uff1a<\/p>\n
public static abstract class ItemDecoration {\n\n public void onDraw(Canvas c, RecyclerView parent, State state) {\n onDraw(c, parent);\n }\n\n public void onDrawOver(Canvas c, RecyclerView parent, State state) {\n onDrawOver(c, parent);\n }\n\n public void getItemOffsets(Rect outRect, View view, RecyclerView parent, State state) {\n getItemOffsets(outRect, ((LayoutParams) view.getLayoutParams()).getViewLayoutPosition(), parent);\n }\n}<\/code><\/pre>\n\u7701\u7565\u4e86\u4e09\u4e2a\u5b98\u65b9\u4e0d\u63d0\u5021\u7684\u65b9\u6cd5\uff0c\u8fd9\u91cc\u7b80\u5355\u8bf4\u660e\u4e00\u4e0b\u4ee5\u4e0a\u5404\u4e2a\u65b9\u6cd5\u7684\u4f5c\u7528\uff1a<\/p>\n
\n- onDraw\u548conDrawOver\uff1a\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u7528\u4e8e\u7ed8\u5236\uff0c\u7ed8\u5236\u5206\u5272\u7ebf\u7684\u903b\u8f91\u53ef\u4ee5\u653e\u5728\u8fd9\u91cc\u9762\uff0c\u5b83\u4eec\u4e8c\u8005\u7684\u5177\u4f53\u533a\u522b\u662f\uff1aonDraw\u662f\u5728Item View\u7ed8\u5236\u4e4b\u524d\u8c03\u7528\uff0c\u800conDrawOver\u662f\u5728Item View\u7ed8\u5236\u4e4b\u540e\u8c03\u7528\uff0c\u56e0\u6b64\u6211\u4eec\u4e00\u822c\u9009\u62e9\u91cd\u5199\u5176\u4e2d\u4e00\u4e2a\u65b9\u6cd5\u5373\u53ef\u3002<\/li>\n
- getItemOffsets\uff1a\u8fd9\u4e2a\u65b9\u6cd5\u662f\u544a\u8bc9RecyclerView\u5728\u7ed8\u5236\u5b8c\u4e00\u4e2aItem View\u7684\u65f6\u5019\uff0c\u5e94\u8be5\u7559\u4e0b\u591a\u5c11\u7a7a\u4f4d\uff0c\u4ee5\u4fbf\u4e8e\u7ed8\u5236\u5206\u5272\u7ebf\u3002<\/li>\n<\/ul>\n
\u6211\u4eec\u6765\u5199\u4e00\u4e2a\u5b9e\u73b0\u7c7b\uff0c\u65b0\u5efaDividerItemDecoration\uff08\u6ce8\uff1a\u8be5\u7c7b\u53c2\u8003\u81eaAndroid\u5b98\u65b9\uff09\uff1a<\/p>\n
public class DividerItemDecoration extends RecyclerView.ItemDecoration {\n\n \/\/\u4f7f\u7528\u7cfb\u7edf\u81ea\u5e26\u7684listDivider\n private static final int[] ATTRS = new int[] {\n android.R.attr.listDivider\n };\n\n public static final int ORIENTATION_HORIZONTAL = LinearLayoutManager.HORIZONTAL;\n public static final int ORIENTATION_VERTICAL = LinearLayoutManager.VERTICAL;\n\n private Drawable mDivider;\n private int mOrientation;\n\n public DividerItemDecoration(Context context,int orientation) {\n \/\/\u4f7f\u7528TypeArray\u52a0\u8f7d\u8be5\u7cfb\u7edf\u8d44\u6e90\n final TypedArray ta = context.obtainStyledAttributes(ATTRS);\n mDivider = ta.getDrawable(0);\n \/\/\u7f13\u5b58\n ta.recycle();\n setOrientation(orientation);\n }\n\n public void setOrientation(int orientation) {\n if (orientation != ORIENTATION_HORIZONTAL && orientation != ORIENTATION_VERTICAL) {\n throw new IllegalArgumentException("invalid orientation");\n }\n mOrientation = orientation;\n }\n\n @Override\n public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {\n if (mOrientation == ORIENTATION_VERTICAL) {\n drawVertical(c, parent);\n } else {\n drawHorizontal(c,parent);\n }\n }\n\n public void drawVertical(Canvas c, RecyclerView parent) {\n \/\/\u83b7\u53d6\u5206\u5272\u7ebf\u7684\u5de6\u8fb9\u8ddd\uff0c\u5373RecyclerView\u7684padding\u503c\n final int left = parent.getPaddingLeft();\n \/\/\u5206\u5272\u7ebf\u53f3\u8fb9\u8ddd\n final int right = parent.getWidth() - parent.getPaddingRight();\n final int childCount = parent.getChildCount();\n \/\/\u904d\u5386\u6240\u6709item view\uff0c\u4e3a\u5b83\u4eec\u7684\u4e0b\u65b9\u7ed8\u5236\u5206\u5272\u7ebf\n for (int i=0; i < childCount; i++) {\n final View child = parent.getChildAt(i);\n final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();\n final int top = child.getBottom() + params.bottomMargin;\n final int bottom = top + mDivider.getIntrinsicHeight();\n mDivider.setBounds(left, top, right, bottom);\n mDivider.draw(c);\n }\n }\n\n public void drawHorizontal(Canvas c, RecyclerView parent) {\n final int top = parent.getPaddingTop();\n final int bottom = parent.getHeight() - parent.getPaddingBottom();\n\n final int childCount = parent.getChildCount();\n for (int i = 0; i < childCount; i++) {\n final View child = parent.getChildAt(i);\n final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();\n final int left = child.getRight() + params.rightMargin;\n final int right = left + mDivider.getIntrinsicHeight();\n mDivider.setBounds(left, top, right, bottom);\n mDivider.draw(c);\n }\n }\n\n @Override\n public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {\n if (mOrientation == ORIENTATION_VERTICAL) {\n \/\/\u8bbe\u7f6e\u504f\u79fb\u7684\u9ad8\u5ea6\u662fmDivider.getIntrinsicHeight\uff0c\u8be5\u9ad8\u5ea6\u6b63\u662f\u5206\u5272\u7ebf\u7684\u9ad8\u5ea6\n outRect.set(0,0,0,mDivider.getIntrinsicHeight());\n } else {\n outRect.set(0,0,mDivider.getIntrinsicWidth(), 0);\n }\n }\n}<\/code><\/pre>\n\u63a5\u7740\u5728MainActivity.java\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n
mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.ORIENTATION_VERTICAL));<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u64cd\u4f5c\u6570\u636e \u5b98\u65b9RecyclerView.Adapter\u4e2d\u63d0\u4f9b\u57fa\u672c\u6dfb\u52a0\u3001\u5220\u9664\u548c\u4fee\u6539\u6570\u636e\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a \/\/\u8be5\u65b9\u6cd5\u7528 […]<\/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-354","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\/354","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=354"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/354\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=354"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=354"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=354"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}