NestedScrollView嵌套时的loadmore处理

config.gradle

@@ -44,6 +44,6 @@ ext {
 
                     xDesign      : 'com.google.android.material:material:1.0.0',
                     xAppCompat   : 'androidx.appcompat:appcompat:1.0.2',
-                    xRecyclerView: 'androidx.recyclerview:recyclerview:1.0.0',
+                    xRecyclerView: 'androidx.recyclerview:recyclerview:1.1.0',
                     xCardView    : 'androidx.cardview:cardview:1.0.0']
 }

x/src/main/java/com/yanzhenjie/recyclerview/SwipeRecyclerView.java

@@ -743,7 +743,7 @@ public void onScrolled(int dx, int dy) {
         }
     }
 
-    private void dispatchLoadMore() {
+    public void  dispatchLoadMore() {
         if (isLoadError) return;
 
         if (!isAutoLoadMore) {

xSample/src/main/AndroidManifest.xml

@@ -130,6 +130,9 @@
         <activity
             android:name=".activity.group.MenuActivity"
             android:label="Item菜单Sticky分组"/>
+        <activity
+            android:name=".activity.nestscrollview.NestscrollViewActivity"
+            android:label="NestscrollView嵌套"/>
     </application>
 
 </manifest>

xSample/src/main/java/com/yanzhenjie/recyclerview/sample/activity/MainActivity.java

@@ -27,6 +27,7 @@
 import com.yanzhenjie.recyclerview.sample.activity.menu.MenuActivity;
 import com.yanzhenjie.recyclerview.sample.activity.move.MoveActivity;
 import com.yanzhenjie.recyclerview.sample.activity.nested.NestedActivity;
+import com.yanzhenjie.recyclerview.sample.activity.nestscrollview.NestscrollViewActivity;
 
 import java.util.Arrays;
 import java.util.List;
@@ -79,6 +80,10 @@ public void onItemClick(View itemView, int position) {
                 startActivity(new Intent(this, GroupActivity.class));
                 break;
             }
+            case 7: {
+                startActivity(new Intent(this, NestscrollViewActivity.class));
+                break;
+            }
         }
     }
 

xSample/src/main/java/com/yanzhenjie/recyclerview/sample/activity/nestscrollview/NestscrollViewActivity.java

@@ -0,0 +1,146 @@
+package com.yanzhenjie.recyclerview.sample.activity.nestscrollview;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.widget.NestedScrollView;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.yanzhenjie.recyclerview.SwipeRecyclerView;
+import com.yanzhenjie.recyclerview.sample.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class NestscrollViewActivity extends AppCompatActivity {
+
+    private NestedScrollView mNestedScrollView;
+
+    private SwipeRecyclerView mSwipeRecyclerView;
+
+    private List<Integer> mList ;
+
+    private Handler mHandler = new Handler();
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.item_nestscorllview);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+        ActionBar actionBar = getSupportActionBar();
+        assert actionBar != null;
+        actionBar.setDisplayHomeAsUpEnabled(true);
+
+
+        mNestedScrollView = findViewById(R.id.nestedScrollView);
+        mSwipeRecyclerView = findViewById(R.id.swipeRecyclerView);
+
+        mList = new ArrayList<>();
+        mSwipeRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+        mSwipeRecyclerView.setAdapter(new Adapter());
+        setData();
+        mSwipeRecyclerView.getAdapter().notifyDataSetChanged();
+
+        mSwipeRecyclerView.useDefaultLoadMore();
+        mSwipeRecyclerView.setLoadMoreListener(new SwipeRecyclerView.LoadMoreListener() {
+            @Override
+            public void onLoadMore() {
+                mHandler.postDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        setData();
+                        mSwipeRecyclerView.getAdapter().notifyDataSetChanged();
+                    }
+                },1 * 1000);
+            }
+        });
+
+        mNestedScrollView.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
+            @Override
+            public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
+                View onlyChild = v.getChildAt(0);
+                if (onlyChild.getHeight() <= scrollY + v.getHeight()) {
+                    // 如果满足就是到底部了
+                    //该方法需要是public
+                    mSwipeRecyclerView.dispatchLoadMore();
+
+                   /* //如果dispatchLoadMore 是private
+                    mSwipeRecyclerView.onScrollStateChanged(2);
+                    mSwipeRecyclerView.onScrolled(scrollX,scrollY);*/
+
+                }
+
+            }
+        });
+
+    }
+
+    /**
+     * 制作模拟数据
+     */
+    private void setData() {
+        int baseNo = mList.size() ;
+        for(int i = baseNo ; i < baseNo + 20 ; i++ ){
+            mList.add(i);
+        }
+        /*//如果dispatchLoadMore是private
+        //去掉RecyclerView内的滚动状态，要不页面滚动会卡顿
+        //mSwipeRecyclerView.onScrollStateChanged(-1);*/
+
+        mSwipeRecyclerView.loadMoreFinish(false,true);
+    }
+
+    private class Adapter extends RecyclerView.Adapter<ViewHolder> {
+
+
+        @NonNull
+        @Override
+        public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_nestscorllview_item,parent,false);
+            ViewHolder viewHolder = new ViewHolder(view);
+            return viewHolder;
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+            TextView tvItemText = holder.itemView.findViewById(R.id.tvItemText);
+            tvItemText.setText("第" + mList.get(position).toString() + "个");
+        }
+
+        @Override
+        public int getItemCount() {
+            return mList.size();
+        }
+    }
+
+    private class ViewHolder extends RecyclerView.ViewHolder {
+
+        View itemView;
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+            this.itemView = itemView;
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+        }
+        return true;
+    }
+
+}

xSample/src/main/res/layout/item_nestscorllview.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <include layout="@layout/toolbar_scroll"/>
+
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/nestedScrollView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <com.yanzhenjie.recyclerview.SwipeRecyclerView
+            android:id="@+id/swipeRecyclerView"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+        </com.yanzhenjie.recyclerview.SwipeRecyclerView>
+
+    </androidx.core.widget.NestedScrollView>
+
+</LinearLayout>

xSample/src/main/res/layout/item_nestscorllview_item.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    >
+    <TextView
+        android:id="@+id/tvItemText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="15dp"
+        android:gravity="center"
+        android:textSize="16sp"
+        android:text=""></TextView>
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="0.5dp"
+        android:background="#eaeaea"></View>
+</LinearLayout>

xSample/src/main/res/values/array.xml

@@ -23,6 +23,7 @@
         <item>和滑动布局嵌套使用</item>
         <item>二级列表</item>
         <item>Sticky分组效果</item>
+        <item>NestedScrollView嵌套</item>
     </string-array>
 
     <string-array name="menu_item">