{"id":573,"date":"2016-12-04T09:03:15","date_gmt":"2016-12-04T00:03:15","guid":{"rendered":"http:\/\/blue-bear.jp\/kb\/?p=573"},"modified":"2016-12-04T09:08:07","modified_gmt":"2016-12-04T00:08:07","slug":"android-recyclerview%e3%81%ab%e5%8c%ba%e5%88%87%e3%82%8a%e7%b7%9a%e3%82%92%e3%81%a4%e3%81%91%e3%82%8b","status":"publish","type":"post","link":"https:\/\/blue-bear.jp\/kb\/android-recyclerview%e3%81%ab%e5%8c%ba%e5%88%87%e3%82%8a%e7%b7%9a%e3%82%92%e3%81%a4%e3%81%91%e3%82%8b\/","title":{"rendered":"[Android] RecyclerView\u306b\u533a\u5207\u308a\u7dda\u3092\u3064\u3051\u308b"},"content":{"rendered":"<h2>RecyclerView\u306b\u533a\u5207\u308a\u7dda\u3092\u3064\u3051\u308b<\/h2>\n<p>ListView\u3088\u308a\u3082\u4f7f\u7528\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u308bRecyclerView\u306b\u533a\u5207\u308a\u7dda\u3092\u3064\u3051\u308b\u306b\u306f<br \/>\nListView\u306e\u6642\u306eLayout\u3067\u300candroid:divider=\u300d\u3067\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u306f\u4f7f\u7528\u3067\u304d\u306a\u3044<\/p>\n<p>\u5225\u9014Java\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u5c11\u3005\u3081\u3093\u3069\u3046<\/p>\n<h3>\uff11\uff0eDividerItemDecoration.java\u306e\u4f5c\u6210<\/h3>\n<p>DividerItemDecoration.java\u3068\u3044\u3046RecyclerView.ItemDecoration\u3092\u7d99\u627f\u3057\u305f\u3082\u306e\u3092\u4f5c\u6210<\/p>\n<pre>\r\npublic class DividerItemDecoration extends RecyclerView.ItemDecoration {\r\n\r\n    private static final int[] ATTRS = new int[]{\r\n            android.R.attr.listDivider\r\n    };\r\n\r\n    private Drawable mDivider;\r\n\r\n    public DividerItemDecoration(Context context) {\r\n        final TypedArray a = context.obtainStyledAttributes(ATTRS);\r\n        mDivider = a.getDrawable(0);\r\n        a.recycle();\r\n    }\r\n\r\n    @Override\r\n    public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {\r\n        drawVertical(c, parent);\r\n    }\r\n\r\n    public void drawVertical(Canvas c, RecyclerView parent) {\r\n        final int left = parent.getPaddingLeft();\r\n        final int right = parent.getWidth() - parent.getPaddingRight();\r\n\r\n        final int childCount = parent.getChildCount();\r\n        for (int i = 0; i < childCount; i++) {\r\n            final View child = parent.getChildAt(i);\r\n            final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child\r\n                    .getLayoutParams();\r\n            final int top = child.getBottom() + params.bottomMargin;\r\n            final int bottom = top + mDivider.getIntrinsicHeight();\r\n            mDivider.setBounds(left, top, right, bottom);\r\n            mDivider.draw(c);\r\n        }\r\n    }\r\n\r\n    @Override\r\n    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {\r\n        outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());\r\n    }\r\n}\r\n<\/pre>\n<h3>\uff12\uff0eDividerItemDecoration\u3092\u9069\u7528<\/h3>\n<p>RecyclerView\u3092\u4f7f\u7528\u3057\u3066\u3044\u308bFragment\u3084Actibity\u306bDividerItemDecoration\u3092\u9069\u7528\u3059\u308b<\/p>\n<pre>\r\n@Override\r\n    public View onCreateView(LayoutInflater inflater, ViewGroup container,\r\n                             Bundle savedInstanceState) {\r\n        View view = inflater.inflate(R.layout.fragment_setting_item_list, container, false);\r\n\r\n        \/\/ Set the adapter\r\n        if (view instanceof RecyclerView) {\r\n            Context context = view.getContext();\r\n            RecyclerView recyclerView = (RecyclerView) view;\r\n            recyclerView.setLayoutManager(new LinearLayoutManager(context));\r\n            recyclerView.setAdapter(new settingRecyclerViewAdapter(SettingContent.ITEMS, mListener));\r\n            recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST));\r\n        }\r\n        return view;\r\n    }\r\n<\/pre>\n<p>\uff0a\u3061\u306a\u307f\u306bDividerItemDecoration\u3067\u306f\u5b9f\u969b\u306b\u7dda\u3092\u66f8\u3044\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5404Item\u306e\u63cf\u753b\u7bc4\u56f2\u3092Padding\u3067\u9699\u9593\u3092\u4f5c\u6210\u3057\u3066\u3001\u80cc\u666f\u3092\u900f\u904e\u3057\u3066\u3044\u308b<br \/>\n\uff0a\u305d\u306e\u70ba\u3001RecyclerView\u3092\u4fdd\u6301\u3057\u3066\u3044\u308bView\u306e\u80cc\u666f\u304c\u300c\u767d\u300d\u3001Item\u306e\u80cc\u666f\u3082\u300c\u767d\u300d\u306e\u5834\u5408\u306f\u3001\u7dda\u304c\u63cf\u753b\u3055\u308c\u3066\u3044\u308b\u304c\u540c\u3058\u767d\u306a\u306e\u3067\u3001\u7dda\u304c\u898b\u3048\u306a\u3044\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u6ce8\u610f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RecyclerView\u306b\u533a\u5207\u308a\u7dda\u3092\u3064\u3051<\/p>\n","protected":false},"author":1,"featured_media":383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[46],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/posts\/573"}],"collection":[{"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/comments?post=573"}],"version-history":[{"count":3,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/posts\/573\/revisions"}],"predecessor-version":[{"id":576,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/posts\/573\/revisions\/576"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/media\/383"}],"wp:attachment":[{"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/media?parent=573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/categories?post=573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blue-bear.jp\/kb\/wp-json\/wp\/v2\/tags?post=573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}