RecyclerView的快速滚动:RecyclerView-FastScroll

jopen 8年前

RecyclerView的快速滚动,支持使用了LinearLayoutManager和GridLayoutManager的垂直RecyclerViews。
Screenshot 

使用说明:

 样式大致基于最新Lollipop版本的ListView FastScroller。大量借鉴了 Google的Launcher3 FastScroller

你必须把FastScrollRecyclerView作为你的base RecyclerView。


如果你的RecyclerView Adapter实现了SectionIndexer,FastScrollPopup将显示从那个实现返回的text。

/*   * Copyright (c) 2016 Tim Malseed   *   *  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   *   *       http://www.apache.org/licenses/LICENSE-2.0   *   *  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.   */    package com.simplecity.recyclerview_fastscroll.sample.activity;    import android.os.Bundle;  import android.support.v7.app.AppCompatActivity;  import android.support.v7.widget.LinearLayoutManager;  import android.support.v7.widget.RecyclerView;  import android.view.View;  import android.view.ViewGroup;  import android.widget.SectionIndexer;  import android.widget.TextView;    import com.simplecity.recyclerview_fastscroll.sample.R;  import com.simplecity.recyclerview_fastscroll.views.FastScrollRecyclerView;    public class MainActivity extends AppCompatActivity {        @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);            FastScrollRecyclerView recyclerView = (FastScrollRecyclerView) findViewById(R.id.recycler);          recyclerView.setLayoutManager(new LinearLayoutManager(this));          recyclerView.setAdapter(new RecyclerAdapter());      }        private class RecyclerAdapter extends RecyclerView.Adapter              implements SectionIndexer      {            @Override          public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {              TextView textView = new TextView(MainActivity.this);              textView.setPadding(100, 100, 100, 100);              return new ViewHolder(textView);          }            @Override          public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {              ((TextView) holder.itemView).setText(String.format("Item %d", position));          }            @Override          public int getItemCount() {              return 20;          }            @Override          public Object[] getSections() {              Object[] objects = new Object[getItemCount()];              for (int i = 0, length = getItemCount(); i < length; i++) {                  objects[i] = i;              }              return objects;          }            @Override          public int getPositionForSection(int sectionIndex) {              return sectionIndex;          }            @Override          public int getSectionForPosition(int position) {              return position;          }      }        private class ViewHolder extends RecyclerView.ViewHolder {            public ViewHolder(View itemView) {              super(itemView);          }      }  }


项目地址: https://github.com/timusus/RecyclerView-FastScroll