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youlookwhatyoulookwhat
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add demo CoordinatorLayout 嵌套滑动置顶(原始方案)
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+282
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‎app/src/main/AndroidManifest.xml‎

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<activity android:name=".activity.ItemPayloadActivity" />
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<activity android:name=".activity.LoadMoreActivity" />
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<activity android:name=".activity.StickyRvCoordinatorActivity" />
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<activity android:name=".activity.StickyRvCoordinatorOriginalActivity" />
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</application>
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</manifest>

‎app/src/main/java/me/jingbin/byrecyclerview/App.java‎

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import androidx.multidex.MultiDexApplication;
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import me.weishu.reflection.Reflection;
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public class App extends MultiDexApplication {
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@@ -19,4 +21,11 @@ public void onCreate() {
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public static Context getContext() {
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return mContext;
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}
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@Override
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protected void attachBaseContext(Context base) {
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super.attachBaseContext(base);
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// https://github.com/tiann/FreeReflection，解决[CoordinatorLayout 嵌套滑动置顶(惯性滑动方案)]反射问题
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Reflection.unseal(base);
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}
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}

‎app/src/main/java/me/jingbin/byrecyclerview/MainActivity.java‎

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import me.jingbin.byrecyclerview.activity.StickyRvCoordinatorActivity;
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import me.jingbin.byrecyclerview.activity.StickyItemActivity;
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import me.jingbin.byrecyclerview.activity.StickyRvActivity;
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import me.jingbin.byrecyclerview.activity.StickyRvCoordinatorOriginalActivity;
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import me.jingbin.byrecyclerview.databinding.ActivityMainBinding;
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import me.jingbin.byrecyclerview.utils.WebUtil;
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import me.jingbin.library.adapter.BaseByViewHolder;
@@ -53,7 +54,8 @@ public class MainActivity extends AppCompatActivity {
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"CoordinatorLayout + RecyclerView 使用示例",
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"FlexboxLayoutManager 显示处理",
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"RecyclerView 嵌套滑动置顶",
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"CoordinatorLayout 嵌套滑动置顶"
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"CoordinatorLayout 嵌套滑动置顶(惯性滑动方案)",
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"CoordinatorLayout 嵌套滑动置顶(原始方案)"
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);
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private ActivityMainBinding binding;
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@@ -121,6 +123,9 @@ public void onSingleClick(View v, int position) {
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case 13:// CoordinatorLayout 嵌套滑动置顶
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startActivity(new Intent(MainActivity.this, StickyRvCoordinatorActivity.class));
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break;
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case 14:// CoordinatorLayout 嵌套滑动置顶
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startActivity(new Intent(MainActivity.this, StickyRvCoordinatorOriginalActivity.class));
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break;
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default:
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break;
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‎app/src/main/java/me/jingbin/byrecyclerview/activity/StickyRvCoordinatorActivity.java‎

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/**
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* @author jingbin
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* CoordinatorLayout 嵌套滑动置顶(惯性滑动方案)
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* 如要惯性滑动，即滑动头部布局不置顶，现要求其一：
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* 1、targetSdkVersion 在30以下。因为HookedScroller反射失败
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* 2、集成三方库：https://github.com/tiann/FreeReflection，需要minSdkVersion 21
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*/
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public class StickyRvCoordinatorActivity extends BaseActivity<ActivityStickyRvCoordBinding> {
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‎app/src/main/java/me/jingbin/byrecyclerview/activity/StickyRvCoordinatorOriginalActivity.java‎

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package me.jingbin.byrecyclerview.activity;
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import android.os.Bundle;
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import androidx.annotation.NonNull;
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import androidx.fragment.app.Fragment;
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import com.scwang.smartrefresh.layout.api.RefreshLayout;
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import com.scwang.smartrefresh.layout.listener.OnRefreshListener;
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import org.jetbrains.annotations.NotNull;
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import java.util.ArrayList;
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import me.jingbin.byrecyclerview.R;
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import me.jingbin.byrecyclerview.app.BaseActivity;
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import me.jingbin.byrecyclerview.databinding.ActivityStickyRvCoordBinding;
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import me.jingbin.byrecyclerview.databinding.ActivityStickyRvCoordOriginalBinding;
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import me.jingbin.byrecyclerview.fragment.CoordinatorOriginalFragment;
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import me.jingbin.byrecyclerview.fragment.RefreshFragment;
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import me.jingbin.byrecyclerview.fragment.SwipeRefreshFragment;
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import me.jingbin.byrecyclerview.stickrvcool.config.FeedsPagerAdapter;
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import me.jingbin.byrecyclerview.stickrvcool.config.HomeIndicatorHelper;
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import me.jingbin.byrecyclerview.view.MyFragmentPagerAdapter;
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/**
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* @author jingbin
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* CoordinatorLayout 嵌套滑动置顶(原始方案)
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*/
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public class StickyRvCoordinatorOriginalActivity extends BaseActivity<ActivityStickyRvCoordOriginalBinding> {
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private final ArrayList<String> mTitleList = new ArrayList<>(5);
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private final ArrayList<Fragment> mFragments = new ArrayList<>(5);
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_sticky_rv_coord_original);
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setTitle("CoordinatorLayout 嵌套滑动置顶");
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initView();
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}
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private void initView() {
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initFragmentList();
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MyFragmentPagerAdapter myAdapter = new MyFragmentPagerAdapter(getSupportFragmentManager(), mFragments, mTitleList);
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binding.viewPager.setAdapter(myAdapter);
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binding.viewPager.setOffscreenPageLimit(mTitleList.size() - 1);
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myAdapter.notifyDataSetChanged();
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binding.tabLayout.setupWithViewPager(binding.viewPager);
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binding.mainRefreshLayout.setOnRefreshListener(new OnRefreshListener() {
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@Override
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public void onRefresh(@NonNull @NotNull RefreshLayout refreshLayout) {
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binding.mainRefreshLayout.postDelayed(new Runnable() {
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@Override
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public void run() {
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binding.mainRefreshLayout.finishRefresh();
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}
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}, 1000);
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}
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});
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}
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private void initFragmentList() {
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mTitleList.clear();
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mTitleList.add("关注");
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mTitleList.add("推荐");
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mTitleList.add("直播");
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mTitleList.add("进口");
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mTitleList.add("实惠");
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mFragments.add(CoordinatorOriginalFragment.newInstance(""));
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mFragments.add(CoordinatorOriginalFragment.newInstance(""));
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mFragments.add(CoordinatorOriginalFragment.newInstance(""));
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mFragments.add(CoordinatorOriginalFragment.newInstance(""));
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mFragments.add(CoordinatorOriginalFragment.newInstance(""));
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}
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}

‎app/src/main/java/me/jingbin/byrecyclerview/fragment/CoordinatorOriginalFragment.java‎

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package me.jingbin.byrecyclerview.fragment;
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import android.content.Context;
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import android.os.Bundle;
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import android.view.View;
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import androidx.annotation.Nullable;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import androidx.recyclerview.widget.StaggeredGridLayoutManager;
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import me.jingbin.byrecyclerview.R;
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import me.jingbin.byrecyclerview.adapter.DataAdapter;
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import me.jingbin.byrecyclerview.adapter.FeedStaggerAdapter;
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import me.jingbin.byrecyclerview.bean.DataItemBean;
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import me.jingbin.byrecyclerview.databinding.FragmentRefreshBinding;
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import me.jingbin.byrecyclerview.utils.DataUtil;
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import me.jingbin.byrecyclerview.utils.DensityUtil;
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import me.jingbin.byrecyclerview.utils.ToastUtil;
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import me.jingbin.library.ByRecyclerView;
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import me.jingbin.library.decoration.GridSpaceItemDecoration;
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import me.jingbin.library.decoration.SpacesItemDecoration;
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import me.jingbin.library.view.OnItemFilterClickListener;
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/**
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* @author jingbin
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*/
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public class CoordinatorOriginalFragment extends BaseFragment<FragmentRefreshBinding> {
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private static final String TYPE = "mType";
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private String mType = "Android";
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private boolean mIsPrepared;
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private boolean mIsFirst = true;
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private FeedStaggerAdapter feedStaggerAdapter;
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private int page = 0;
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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}
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public static CoordinatorOriginalFragment newInstance(String type) {
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CoordinatorOriginalFragment fragment = new CoordinatorOriginalFragment();
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Bundle args = new Bundle();
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args.putString(TYPE, type);
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fragment.setArguments(args);
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return fragment;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (getArguments() != null) {
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mType = getArguments().getString(TYPE);
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}
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}
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@Override
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public int setContent() {
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return R.layout.fragment_refresh;
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}
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@Override
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public void onActivityCreated(@Nullable Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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// 准备就绪
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mIsPrepared = true;
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initAdapter();
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}
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@Override
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protected void loadData() {
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if (!mIsPrepared || !mIsVisible || !mIsFirst) {
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return;
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}
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initAdapter();
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}
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private void initAdapter() {
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binding.recyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, RecyclerView.VERTICAL));
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binding.recyclerView.addItemDecoration(new GridSpaceItemDecoration(DensityUtil.dip2px(activity, 8f)));
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feedStaggerAdapter = new FeedStaggerAdapter((DataUtil.getStickyData()));
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binding.recyclerView.setAdapter(feedStaggerAdapter);
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binding.recyclerView.setOnItemClickListener(new OnItemFilterClickListener() {
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@Override
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protected void onSingleClick(View v, int position) {
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if ("点我回到顶部".equals(feedStaggerAdapter.getItemData(position).getTitle())) {
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binding.recyclerView.scrollToPosition(0);
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}
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}
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});
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// 设置自动刷新
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binding.recyclerView.setOnLoadMoreListener(true, 1, new ByRecyclerView.OnLoadMoreListener() {
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@Override
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public void onLoadMore() {
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if (page == 2) {
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binding.recyclerView.loadMoreEnd();
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return;
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}
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page = 2;
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feedStaggerAdapter.addData(DataUtil.getStickyData());
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binding.recyclerView.loadMoreComplete();
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}
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}, 1000);
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mIsFirst = false;
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}
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}

‎app/src/main/res/layout/activity_sticky_rv_coord_original.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<layout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:app="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools">
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<!--app:srlEnableOverScrollBounce="false" 关闭越界回弹功能-->
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<com.scwang.smartrefresh.layout.SmartRefreshLayout
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android:id="@+id/main_refresh_layout"
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android:layout_width="match_parent"
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android:layout_height="0dp"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintTop_toBottomOf="@+id/main_toolbar"
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app:srlAccentColor="#fff"
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app:srlReboundDuration="600">
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<com.scwang.smartrefresh.layout.header.ClassicsHeader
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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app:srlAccentColor="@color/color_4"
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app:srlEnableLastTime="false" />
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<!--coordinator部分-->
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<androidx.coordinatorlayout.widget.CoordinatorLayout
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android:id="@+id/main_coordinator_layout"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<com.google.android.material.appbar.AppBarLayout
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android:id="@+id/main_appbar_layout"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:background="@android:color/transparent"
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android:fadingEdge="none"
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app:elevation="0dp"
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app:layout_behavior=".view.FlingBehavior"
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app:layout_scrollFlags="scroll|enterAlways"
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tools:ignore="WebViewLayout">
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<androidx.constraintlayout.widget.ConstraintLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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app:layout_scrollFlags="scroll|exitUntilCollapsed">
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<include layout="@layout/layout_skeleton_headerview" />
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</androidx.constraintlayout.widget.ConstraintLayout>
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<com.google.android.material.tabs.TabLayout
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android:id="@+id/tabLayout"
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android:layout_width="match_parent"
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android:layout_height="48dp"
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android:layout_below="@+id/tv_name_tool"
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android:background="@color/colorWhite"
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android:visibility="visible"
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app:tabIndicatorColor="@color/colorPrimary"
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app:tabIndicatorHeight="2dp"
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app:tabMode="fixed"
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app:tabSelectedTextColor="@color/colorPrimary"
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app:tabTextAppearance="@android:style/TextAppearance.Widget.TabWidget" />
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</com.google.android.material.appbar.AppBarLayout>
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<!--商品流-->
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<me.jingbin.byrecyclerview.view.ViewPagerFixed
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android:id="@+id/viewPager"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:background="#f3f3f3"
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app:layout_behavior="@string/appbar_scrolling_view_behavior" />
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</androidx.coordinatorlayout.widget.CoordinatorLayout>
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</com.scwang.smartrefresh.layout.SmartRefreshLayout>
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</layout>

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