Android开源：RecyclerStickyHeaderView - RecyclerView 上吸顶布局的封装库

   <h2>介绍</h2>    <p> </p>    <p>Sticky header view or suspending view for RecyclerView.</p>    <p><a href="/misc/goto?guid=4958988893987819953" rel="nofollow,noindex">StickyListHeaders</a> is an Android library that makes it easy to integrate section headers stick to the top in ListView. Inspire by it, I setup this project to implement the same effect in RecyclerView.</p>    <h2>效果</h2>    <p><img src="https://simg.open-open.com/show/6a864c623137f29053998143a230f530.gif"></p>    <h2>使用</h2>    <h3>Setup</h3>    <p>root build.gradle</p>    <pre>  <code class="language-java">allprojects {      repositories {          jcenter()          maven { url "https://jitpack.io" }      }  }</code></pre>    <p>app build.gradle</p>    <pre>  <code class="language-java">dependencies {     compile 'com.github.TellH:RecyclerStickyHeaderView:1.0.0'  }</code></pre>    <h3>Quick Start</h3>    <ul>     <li>Place RecylerView into StickyHeaderView</li>    </ul>    <pre>  <code class="language-java"><tellh.com.stickyheaderview_rv.StickyHeaderView          android:id="@+id/stickyHeaderView"          android:layout_width="match_parent"          android:layout_height="match_parent">            <android.support.v7.widget.RecyclerView              android:id="@+id/recyclerView"              android:layout_width="match_parent"              android:layout_height="match_parent"              android:background="@android:color/white"              android:scrollbars="vertical" />      </tellh.com.stickyheaderview_rv.StickyHeaderView></code></pre>    <ul>     <li> <p>Create data bean class for each item type in RecyclerView. They should extend DataBean. Override the method</p> <p>public boolean shouldSticky() to decide whether the item view should be suspended on the top.</p> </li>    </ul>    <pre>  <code class="language-java">public class User extends DataBean {      private String login;      private int id;      private String avatar_url;      private boolean shouldSticky;      @Override      public int getItemLayoutId(StickyHeaderViewAdapter adapter) {          return R.layout.item_user;      }      public void setShouldSticky(boolean shouldSticky) {          this.shouldSticky = shouldSticky;      }      // Decide whether the item view should be suspended on the top.      @Override      public boolean shouldSticky() {          return shouldSticky;      }  }  public class ItemHeader extends DataBean {      private String prefix;      @Override      public int getItemLayoutId(StickyHeaderViewAdapter adapter) {          return R.layout.header;      }      @Override      public boolean shouldSticky() {          return true;      }  }</code></pre>    <ul>     <li>Create ViewBinder to bind different type views with specific data beans. As you see, provideViewHolder(View itemView) corresponds for onCreateViewHolder in RecyclerView, and bindView corresponds for onBindViewHolder in RecyclerView.</li>    </ul>    <pre>  <code class="language-java">public class ItemHeaderViewBinder extends ViewBinder<ItemHeader, ItemHeaderViewBinder.ViewHolder> {      @Override      public ViewHolder provideViewHolder(View itemView) {          return new ViewHolder(itemView);      }      @Override      public void bindView(StickyHeaderViewAdapter adapter, ViewHolder holder, int position, ItemHeader entity) {          holder.tvPrefix.setText(entity.getPrefix());      }      @Override      public int getItemLayoutId(StickyHeaderViewAdapter adapter) {          return R.layout.header;      }      static class ViewHolder extends ViewBinder.ViewHolder {          TextView tvPrefix;          public ViewHolder(View rootView) {              super(rootView);              this.tvPrefix = (TextView) rootView.findViewById(R.id.tv_prefix);          }      }  }</code></pre>    <ul>     <li>Instantiate StickyHeaderViewAdapter for RecyclerView and register ViewBinders for each item types.</li>    </ul>    <pre>  <code class="language-java">rv = (RecyclerView) findViewById(R.id.recyclerView);          rv.setLayoutManager(new LinearLayoutManager(this));          List<DataBean> userList = new ArrayList<>();          adapter = new StickyHeaderViewAdapter(userList)                  .RegisterItemType(new UserItemViewBinder())                  .RegisterItemType(new ItemHeaderViewBinder());          rv.setAdapter(adapter);</code></pre>    <p>That is all.</p>    <p>Please check out the Demo and source code for more information. If you have any question, feel free to raise an issue. Thanks a lot!</p>    <h2>感谢</h2>    <ul>     <li><a href="/misc/goto?guid=4959735695882365302" rel="nofollow,noindex">SuspensionBar</a></li>     <li><a href="/misc/goto?guid=4959735696009853837" rel="nofollow,noindex">NoListAdapter</a></li>    </ul>    <h2>许可</h2>    <p>Copyright 2016 TellH</p>    <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at <a href="/misc/goto?guid=4958193982591036976" rel="nofollow,noindex">http://www.apache.org/licenses/LICENSE-2.0</a> Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</p>    <p> </p>    <p> </p>