为什么当视图聚焦时 RecyclerView 会滚动到视图顶部

I have RecyclerView，某种聊天。物品有TextViews布局颠倒了。下面的输入字段RecyclerView。当我滚动到底部时RecyclerView然后单击底部项目，它会获得焦点（仅当它获得焦点时，而不是每次单击时）并且RecyclerView自动滚动到该项目的顶部（当项目中的文本大于屏幕高度时）。

另外，当键盘可见并且我单击时RecyclerView项目 - 键盘隐藏并且回收器视图滚动到该项目的顶部，如何禁用这种行为？

我希望它在打开键盘时或单击某些项目时保持在同一位置。

用这个方法隐藏键盘

* * * * 
inputView.setOnFocusChangeListener((v, hasFocus) -> {
        if (!hasFocus){
            hideKeyboard();
        } 
    });
* * * * 

public void hideKeyboard() {
    InputMethodManager keyboard = (InputMethodManager)

    getSystemService(Context.INPUT_METHOD_SERVICE);
    keyboard.hideSoftInputFromWindow(inputView.getWindowToken(), 0);
}

And RecyclerView以这样的方式配置：

    RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.messageList);
    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
    linearLayoutManager.setReverseLayout(true);
    recyclerView.setLayoutManager(linearLayoutManager);
    recyclerView.setAdapter(chatAdapter = new chatAdapter(getContext()));

如果我按下按钮并会打电话hideKeyBoard()通过单击该按钮 - 没关系，它不会滚动，但是当我单击 RecyclerView 项目时 - 它会获得焦点并滚动到该项目的顶部

我找到了一个解决方案，我扩展了 LinearLayoutManager 并重写了一些方法。现在它不会滚动到焦点项目。也许有人知道更好的解决方案？

public class NotScrollingToFocuesChildrenLinearLayoutManager extends LinearLayoutManager {
public NotScrollingToFocuesChildrenLinearLayoutManager(Context context) {
    super(context);
}

public NotScrollingToFocuesChildrenLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
    super(context, orientation, reverseLayout);
}

public NotScrollingToFocuesChildrenLinearLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);
}

@Override
public boolean onRequestChildFocus(RecyclerView parent, RecyclerView.State state, View child, View focused) {
    //return super.onRequestChildFocus(parent, state, child, focused);
    return true;
}

@Override
public boolean onRequestChildFocus(RecyclerView parent, View child, View focused) {
    //return super.onRequestChildFocus(parent, child, focused);
    return true;
}
}