答案很简单。

LinearLayoutManager lm = new LinearLayoutManager(getContext()) {
                @Override
                public boolean canScrollVertically() {
                    return false;
                }
            };

上面的代码禁用了RecyclerView的垂直滚动。

只需将此添加到xml中的recycleview

 android:nestedScrollingEnabled="false"

像这样

<android.support.v7.widget.RecyclerView
                    android:background="#ffffff"
                    android:id="@+id/myrecycle"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:nestedScrollingEnabled="false">

通过触摸停止滚动，但通过命令继续滚动:

如果(appTopBarMessagesRV == null) { appTopBarMessagesRV = findViewById(R.id.mainBarScrollMessagesRV);

        appTopBarMessagesRV.addOnItemTouchListener(new RecyclerView.SimpleOnItemTouchListener() {
            @Override
            public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {

                if ( rv.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING)
                {
                     // Stop  scrolling by touch

                    return false;
                }
                return  true;
            }
        });
    }

你可以创建一个不可滚动的回收器视图，它扩展了一个回收器视图类，如下所示:

import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewGroup;

import androidx.annotation.Nullable;
import androidx.recyclerview.widget.RecyclerView;

public class NonScrollRecyclerView extends RecyclerView {

    public NonScrollRecyclerView(Context context) {
        super(context);
    }

    public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasure, int heightMeasure) {
        int heightMeasureCustom = MeasureSpec.makeMeasureSpec(
                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasure, heightMeasureCustom);
        ViewGroup.LayoutParams params = getLayoutParams();
        params.height = getMeasuredHeight();
    }
}

您可以在设置适配器之后添加这一行

ViewCompat.setNestedScrollingEnabled(recyclerView, false);

现在您的recyclerview将与平滑滚动工作

创建继承RecyclerView类的类

public class NonScrollRecyclerView extends RecyclerView {

    public NonScrollRecyclerView(Context context) {
        super(context);
    }

    public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
        ViewGroup.LayoutParams params = getLayoutParams();
        params.height = getMeasuredHeight();
    }
}

这将禁用滚动事件，但不会禁用单击事件

在XML中使用它，执行以下操作:

  <com.yourpackage.xyx.NonScrollRecyclerView 
     ...
     ... 
  />