RecyclerView/列表/多行/瀑布/CardView/动画/上下拉刷新

package com.am.recyclerviewtest; import android.graphics.Color; import android.graphics.Rect; import android.os.Handler; import android.os.Message; import android.support.annotation.Nullable; import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.DefaultItemAnimator; import android.support.v7.widget.GridLayoutManager; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.StaggeredGridLayoutManager; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import android.widget.Toast; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; public class MainActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener { private RecyclerView mRecyclerView; private TextView mTvAdd; private TextView mTvRemove; private List<DataBean> mDatas; private TestAdapter mAdapter; private SwipeRefreshLayout mSwipeRefresh; private LinearLayoutManager linearLayoutManager; private int mLastVisibleItemPosition; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTvAdd = (TextView) findViewById(R.id.mTvAdd); mTvAdd.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mAdapter.addData(1); } }); mTvRemove = (TextView) findViewById(R.id.mTvRemove); mTvRemove.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mAdapter.removeData(1); } }); mRecyclerView = (RecyclerView) findViewById(R.id.mRecycler); initData(); linearLayoutManager = new LinearLayoutManager(MainActivity.this); linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL); mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL)); // 设置布局管理器 GridView mRecyclerView.addItemDecoration(new DividerGridItemDecoration(MainActivity.this)); // 设置分割线 mRecyclerView.setItemAnimator(new DefaultItemAnimator()); // 设置item动画 mRecyclerView.setAdapter(mAdapter = new TestAdapter(MainActivity.this,mDatas)); mAdapter.setOnItemClickLitener(new TestAdapter.OnItemClickLitener() { @Override public void onItemClick(View view, int position) { Toast.makeText(MainActivity.this,"点击："+position,Toast.LENGTH_SHORT).show(); } @Override public void onItemLongClick(View view, int position) { Toast.makeText(MainActivity.this,"长按："+position,Toast.LENGTH_SHORT).show(); } }); // 刷新 mSwipeRefresh = (SwipeRefreshLayout) findViewById(R.id.mSwipeRefresh); // 刷新的时候的颜色 mSwipeRefresh.setColorSchemeResources( R.color.google_blue, R.color.google_green, R.color.google_red, R.color.google_yellow ); // implements SwipeRefreshLayout.OnRefreshListener mSwipeRefresh.setOnRefreshListener(this); //复写onRefresh方法 做下拉刷新 mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() { int[] lastVisibleItem; int lastItem; @Override public void onScrollStateChanged(RecyclerView recyclerView, int newState) { super.onScrollStateChanged(recyclerView,newState); if (newState == RecyclerView.SCROLL_STATE_IDLE && mLastVisibleItemPosition + 1 == mAdapter.getItemCount()) { } } @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { super.onScrolled(recyclerView, dx, dy); mLastVisibleItemPosition = linearLayoutManager.findLastVisibleItemPosition(); } }); } @Override public void onRefresh() { new Handler().postDelayed(new Runnable() { @Override public void run() { DataBean addTemp = new DataBean(); addTemp.title = "标题 下拉新增"; addTemp.desc = "desc 下拉新增"; mDatas.add(0,addTemp); mAdapter.notifyDataSetChanged(); mSwipeRefresh.setRefreshing(false); // } }, 1000); } protected void initData() { mDatas = new ArrayList<DataBean>(); DataBean dataBean = null; for (int i = 0; i < 20; i++) { dataBean = new DataBean(); dataBean.title = "标题　　"+i; dataBean.desc = "描述一下　　"+i; mDatas.add(dataBean); } } }