写了一个BaseAdapter 想通过listview来完成一个多级目录 切页 想通过换绑布局 来设置ui，目前是想通过点击屏幕然后切换layout，notifyDataSetInvalidated(),重走getView（）来换绑。但是发现没有更新，但是数据是有变得

package com.example.testfragment.fragment;

import android.annotation.SuppressLint;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.example.testfragment.R;

import java.util.List;

public class MyAdapter extends BaseAdapter {

    private final List<String> mList;
    private Context mContext;
    private View mView;
    private View mView2;
    private View mView1;

    private int part=2;

    public MyAdapter(List<String> list, Context context) {
        this.mList=list;
        this.mContext=context;
    }

    @Override
    public int getCount() {
        return mList.size();
    }

    @Override
    public Object getItem(int position) {
        return position;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }
    public static final String TAG="zxy";
    @SuppressLint("NewApi")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        mView1 = LayoutInflater.from(mContext).inflate(R.layout.listview_item1, parent, false);
        mView2 = LayoutInflater.from(mContext).inflate(R.layout.listview_item2, parent, false);
        if (part/2==0){
            Log.d(TAG, "到这里了!!!! "+part);
            return mView1;

        }else {
            Log.d(TAG, "到这里了!!!! "+part);
            return mView2;
        }
    }

    public int getPart() {
        return part;
    }

    public void setPart(int part) {
        this.part = part;
        notifyDataSetInvalidated();
    }
}