{"id":791,"date":"2023-10-27T01:11:02","date_gmt":"2024-03-07T19:01:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/android%e7%9a%84recyclerview%e5%8a%a0%e8%bd%bd%e6%9b%b4%e5%a4%9a%ef%bc%8c%e6%97%a0%e9%99%90%e6%bb%9a%e5%8a%a8%e3%80%82\/"},"modified":"2025-08-03T08:02:00","modified_gmt":"2025-08-03T00:02:00","slug":"android%e7%9a%84recyclerview%e5%8a%a0%e8%bd%bd%e6%9b%b4%e5%a4%9a%ef%bc%8c%e6%97%a0%e9%99%90%e6%bb%9a%e5%8a%a8%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/android%e7%9a%84recyclerview%e5%8a%a0%e8%bd%bd%e6%9b%b4%e5%a4%9a%ef%bc%8c%e6%97%a0%e9%99%90%e6%bb%9a%e5%8a%a8%e3%80%82\/","title":{"rendered":"Android RecyclerView\u5b9e\u73b0\u52a0\u8f7d\u66f4\u591a\u4e0e\u65e0\u9650\u6eda\u52a8\uff1a\u5b8c\u6574\u6559\u7a0b\u4e0e\u6027\u80fd\u4f18\u5316"},"content":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300aAndroid\u7684RecyclerView\u52a0\u8f7d\u66f4\u591a\uff0c\u65e0\u9650\u6eda\u52a8\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u5982\u4f55\u5728Android\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u73b0RecyclerView\u7684\u65e0\u9650\u6eda\u52a8\u529f\u80fd\u3002\u65e0\u9650\u6eda\u52a8\u662f\u6307\u4ece\u6570\u636e\u5e93\u6216\u670d\u52a1\u5668\u83b7\u53d6\u4e0b\u4e00\u7ec4\u6570\u636e\u5e76\u663e\u793a\u52a0\u8f7d\u56fe\u6807\u7684\u8fc7\u7a0b\uff0c\u8fd9\u79cd\u529f\u80fd\u5728Facebook\u548cTwitter\u7b49\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u90fd\u5f88\u5e38\u89c1\u3002\u5728\u7ee7\u7eed\u5b66\u4e60\u4e4b\u524d\uff0c\u5f3a\u70c8\u5efa\u8bae\u60a8\u5148\u4e86\u89e3\u672c\u6559\u7a0b\u7684\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n<h2>\u5b89\u5353\u7684RecyclerView\u52a0\u8f7d\u66f4\u591a<\/h2>\n<p>\u4e3a\u4e86\u5728RecyclerView\u5e95\u90e8\u663e\u793a\u52a0\u8f7d\u56fe\u6807\uff0c\u540c\u65f6\u83b7\u53d6\u4e0b\u4e00\u7ec4\u9879\u76ee\uff0c\u6211\u4eec\u9700\u8981\u5728RecyclerView 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class=\"post-pre\"><code>&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;\r\n&lt;android.support.constraint.ConstraintLayout xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    xmlns:app=\"https:\/\/schemas.android.com\/apk\/res-auto\"\r\n    xmlns:tools=\"https:\/\/schemas.android.com\/tools\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"match_parent\"\r\n    tools:context=\".MainActivity\"&gt;\r\n\r\n    &lt;android.support.v7.widget.RecyclerView\r\n        android:id=\"@+id\/recyclerView\"\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"match_parent\"\r\n        app:layoutManager=\"android.support.v7.widget.LinearLayoutManager\"\r\n        app:layout_constraintBottom_toBottomOf=\"parent\"\r\n        app:layout_constraintLeft_toLeftOf=\"parent\"\r\n        app:layout_constraintRight_toRightOf=\"parent\"\r\n        app:layout_constraintTop_toTopOf=\"parent\" \/&gt;\r\n\r\n&lt;\/android.support.constraint.ConstraintLayout&gt;\r\n<\/code><\/pre>\n<p>RecyclerView\u7684\u884c\u5e03\u5c40\u5728item_row.xml\u6587\u4ef6\u4e2d\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code>&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;\r\n&lt;android.support.v7.widget.CardView xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    xmlns:app=\"https:\/\/schemas.android.com\/apk\/res-auto\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"wrap_content\"\r\n    app:cardElevation=\"8dp\"\r\n    app:cardUseCompatPadding=\"true\"&gt;\r\n\r\n\r\n    &lt;TextView\r\n        android:id=\"@+id\/tvItem\"\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:padding=\"16dp\"\r\n        android:text=\"Item X\" \/&gt;\r\n\r\n&lt;\/android.support.v7.widget.CardView&gt;\r\n<\/code><\/pre>\n<p>\u52a0\u8f7d\u89c6\u56fe\u7684\u5e03\u5c40\u5728item_loading.xml\u6587\u4ef6\u4e2d\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code>&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;\r\n&lt;LinearLayout xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:layout_width=\"match_parent\"\r\n    android:layout_height=\"wrap_content\"\r\n    android:layout_margin=\"8dp\"\r\n    android:orientation=\"vertical\"&gt;\r\n\r\n    &lt;ProgressBar\r\n        android:id=\"@+id\/progressBar\"\r\n        android:layout_width=\"wrap_content\"\r\n        android:layout_height=\"wrap_content\"\r\n        android:layout_gravity=\"center_horizontal\"\r\n        android:indeterminate=\"true\"\r\n        android:paddingLeft=\"8dp\"\r\n        android:paddingRight=\"8dp\"\r\n        \/&gt;\r\n\r\n&lt;\/LinearLayout&gt;\r\n<\/code><\/pre>\n<p>\u4e0b\u9762\u662fRecyclerViewAdapter.java\u7c7b\u7684\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.androidrecyclerviewloadmore;\r\n\r\nimport android.support.annotation.NonNull;\r\nimport android.support.v7.widget.RecyclerView;\r\nimport android.view.LayoutInflater;\r\nimport android.view.View;\r\nimport android.view.ViewGroup;\r\nimport android.widget.ProgressBar;\r\nimport android.widget.TextView;\r\n\r\nimport java.util.List;\r\n\r\npublic class RecyclerViewAdapter extends RecyclerView.Adapter&lt;RecyclerView.ViewHolder&gt; {\r\n\r\n    private final int VIEW_TYPE_ITEM = 0;\r\n    private final int VIEW_TYPE_LOADING = 1;\r\n\r\n    public List&lt;String&gt; mItemList;\r\n\r\n\r\n    public RecyclerViewAdapter(List&lt;String&gt; itemList) {\r\n\r\n        mItemList = itemList;\r\n    }\r\n\r\n    @NonNull\r\n    @Override\r\n    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {\r\n        if (viewType == VIEW_TYPE_ITEM) {\r\n            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false);\r\n            return new ItemViewHolder(view);\r\n        } else {\r\n            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_loading, parent, false);\r\n            return new LoadingViewHolder(view);\r\n        }\r\n    }\r\n\r\n    @Override\r\n    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int position) {\r\n\r\n        if (viewHolder instanceof ItemViewHolder) {\r\n\r\n            populateItemRows((ItemViewHolder) viewHolder, position);\r\n        } else if (viewHolder instanceof LoadingViewHolder) {\r\n            showLoadingView((LoadingViewHolder) viewHolder, position);\r\n        }\r\n\r\n    }\r\n\r\n    @Override\r\n    public int getItemCount() {\r\n        return mItemList == null ? 0 : mItemList.size();\r\n    }\r\n\r\n    \/**\r\n     * The following method decides the type of ViewHolder to display in the RecyclerView\r\n     *\r\n     * @param position\r\n     * @return\r\n     *\/\r\n    @Override\r\n    public int getItemViewType(int position) {\r\n        return mItemList.get(position) == null ? VIEW_TYPE_LOADING : VIEW_TYPE_ITEM;\r\n    }\r\n\r\n\r\n    private class ItemViewHolder extends RecyclerView.ViewHolder {\r\n\r\n        TextView tvItem;\r\n\r\n        public ItemViewHolder(@NonNull View itemView) {\r\n            super(itemView);\r\n\r\n            tvItem = itemView.findViewById(R.id.tvItem);\r\n        }\r\n    }\r\n\r\n    private class LoadingViewHolder extends RecyclerView.ViewHolder {\r\n\r\n        ProgressBar progressBar;\r\n\r\n        public LoadingViewHolder(@NonNull View itemView) {\r\n            super(itemView);\r\n            progressBar = itemView.findViewById(R.id.progressBar);\r\n        }\r\n    }\r\n\r\n    private void showLoadingView(LoadingViewHolder viewHolder, int position) {\r\n        \/\/ProgressBar would be displayed\r\n\r\n    }\r\n\r\n    private void populateItemRows(ItemViewHolder viewHolder, int position) {\r\n\r\n        String item = mItemList.get(position);\r\n        viewHolder.tvItem.setText(item);\r\n\r\n    }\r\n\r\n\r\n}\r\n<\/code><\/pre>\n<p>getItemViewType\u65b9\u6cd5\u7528\u4e8e\u68c0\u67e5\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u5982\u679c\u5143\u7d20\u4e3a\u7a7a\uff0c\u5219\u5c06\u89c6\u56fe\u7c7b\u578b\u8bbe\u7f6e\u4e3a1\uff0c\u5426\u5219\u8bbe\u7f6e\u4e3a0\u3002\u6839\u636e\u89c6\u56fe\u7c7b\u578b\uff0c\u5728onCreateViewHolder\u4e2d\u5b9e\u4f8b\u5316ViewHolder\u3002\u5728onBindViewHolder\u4e2d\uff0c\u6211\u4eec\u68c0\u67e5ViewHolder\u5b9e\u4f8b\u7684\u7c7b\u578b\uff0c\u5e76\u76f8\u5e94\u5730\u586b\u5145\u884c\u3002\u8ba9\u6211\u4eec\u770b\u4e00\u4e0bMainActivity.java\u7c7b\uff0c\u5728\u8be5\u7c7b\u4e2d\u6211\u4eec\u5b9e\u4f8b\u5316\u4e0a\u8ff0\u7684Adapter\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.androidrecyclerviewloadmore;\r\n\r\nimport android.os.Handler;\r\nimport android.support.annotation.NonNull;\r\nimport android.support.v7.app.AppCompatActivity;\r\nimport android.os.Bundle;\r\nimport android.support.v7.widget.LinearLayoutManager;\r\nimport android.support.v7.widget.RecyclerView;\r\n\r\nimport java.util.ArrayList;\r\n\r\npublic class MainActivity extends AppCompatActivity {\r\n\r\n    RecyclerView recyclerView;\r\n    RecyclerViewAdapter recyclerViewAdapter;\r\n    ArrayList&lt;String&gt; rowsArrayList = new ArrayList&lt;&gt;();\r\n\r\n    boolean isLoading = false;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_main);\r\n\r\n        recyclerView = findViewById(R.id.recyclerView);\r\n        populateData();\r\n        initAdapter();\r\n        initScrollListener();\r\n\r\n\r\n    }\r\n\r\n    private void populateData() {\r\n        int i = 0;\r\n        while (i &lt; 10) {\r\n            rowsArrayList.add(\"Item \" + i);\r\n            i++;\r\n        }\r\n    }\r\n\r\n    private void initAdapter() {\r\n\r\n        recyclerViewAdapter = new RecyclerViewAdapter(rowsArrayList);\r\n        recyclerView.setAdapter(recyclerViewAdapter);\r\n    }\r\n\r\n    private void initScrollListener() {\r\n        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {\r\n            @Override\r\n            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {\r\n                super.onScrollStateChanged(recyclerView, newState);\r\n            }\r\n\r\n            @Override\r\n            public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {\r\n                super.onScrolled(recyclerView, dx, dy);\r\n\r\n                LinearLayoutManager linearLayoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();\r\n\r\n                if (!isLoading) {\r\n                    if (linearLayoutManager != null &amp;&amp; linearLayoutManager.findLastCompletelyVisibleItemPosition() == rowsArrayList.size() - 1) {\r\n                        \/\/bottom of list!\r\n                        loadMore();\r\n                        isLoading = true;\r\n                    }\r\n                }\r\n            }\r\n        });\r\n\r\n\r\n    }\r\n\r\n    private void loadMore() {\r\n        rowsArrayList.add(null);\r\n        recyclerViewAdapter.notifyItemInserted(rowsArrayList.size() - 1);\r\n\r\n\r\n        Handler handler = new Handler();\r\n        handler.postDelayed(new Runnable() {\r\n            @Override\r\n            public void run() {\r\n                rowsArrayList.remove(rowsArrayList.size() - 1);\r\n                int scrollPosition = rowsArrayList.size();\r\n                recyclerViewAdapter.notifyItemRemoved(scrollPosition);\r\n                int currentSize = scrollPosition;\r\n                int nextLimit = currentSize + 10;\r\n\r\n                while (currentSize - 1 &lt; nextLimit) {\r\n                    rowsArrayList.add(\"Item \" + currentSize);\r\n                    currentSize++;\r\n                }\r\n\r\n                recyclerViewAdapter.notifyDataSetChanged();\r\n                isLoading = false;\r\n            }\r\n        }, 2000);\r\n\r\n\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cinitScrollListener\u662f\u6700\u91cd\u8981\u7684\u65b9\u6cd5\u3002\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u68c0\u67e5RecyclerView\u7684\u6eda\u52a8\u72b6\u6001\uff0c\u5982\u679c\u6700\u5e95\u90e8\u7684\u9879\u53ef\u89c1\uff0c\u6211\u4eec\u4f1a\u663e\u793a\u52a0\u8f7d\u89c6\u56fe\u5e76\u586b\u5145\u4e0b\u4e00\u4e2a\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u4e0a\u8ff0\u5e94\u7528\u7a0b\u5e8f\u7684\u8f93\u51fa\uff1a<\/p>\n<p>\u672c\u6559\u7a0b\u5230\u6b64\u7ed3\u675f\u3002\u60a8\u53ef\u4ee5\u4ece\u4e0b\u9762\u7684\u94fe\u63a5\u4e0b\u8f7d\u8be5\u9879\u76ee\u3002<\/p>\n<p>AndroidRecyclerViewLoadMore\u7684\u4e2d\u6587\u672c\u5730\u5316\uff1a\u5b89\u5353\u4e0b\u62c9\u52a0\u8f7d\u66f4\u591a\u7684RecyclerView\u7ec4\u4ef6\u3002<\/p>\n<p><a href=\"#\">GitHub \u9879\u76ee\u94fe\u63a5<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300aAndroid\u7684RecyclerView\u52a0\u8f7d\u66f4\u591a\uff0c\u65e0\u9650\u6eda\u52a8\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002 \u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[900,1031,2110,2108,2109],"class_list":["post-791","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-android","tag-recyclerview","tag-2110","tag-2108","tag-2109"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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