HashMap 重复 Android Studio 中的最后一个元素

Question

我正在使用 HashMap 为我的列表视图适配器获取值。 问题是我的 HashMap 的最后两个元素重复了。 在发布此问题之前，我尝试了不同的解决方案。 非常感谢您的帮助，谢谢。

这是我的 HashMap 的代码

final String[] bookTitles = new String[]{
            "android-iconify",
            "Calligraphy",
            "SmartTabLayout",
            "android-viewpager-transformers",
            "Android-Rate",
            "FloatingActionButton",
            "TapTargetView",
            "MaterialDrawer"

    };
    final String[] authors = new String[]{

            "Version 2.2.2",
            "Version 2.2.0",
            "Version 1.6.1",
            "Version 1.0.1",
            "Version 1.0.1",
            "Version 1.6.4",
            "Version 1.11.0",
            "Version 6.0.8"


    };
    final String[] bookPages = new String[]{
            "Copyright 2015 Joan Zapata",
            "Copyright 2013 Christopher Jenkins",
            "Copyright (C) 2015 ogaclejapan\nCopyright (C) 2013 The Android Open Source Project",
            "Copyright 2015 Georgi Eftimov",
            "Maintained by hotchemi",
            "Copyright 2015 Dmytro Tarianyk",
            "Copyright 2016 Keepsafe Software Inc.",
            "Copyright 2018 Mike Penz"


    };
    ArrayList<HashMap<String, String>> authorList = new ArrayList<>();
    for (int i = 0; i < 8; i++){

        HashMap<String, String> data = new HashMap<>();
        data.put("title", bookTitles[i]);
        data.put("pages", bookPages[i]);
        data.put("author", authors[i]);


        authorList.add(data);

    }


    //Setup adapter
    customListViewAdapter = new CustomListViewAdapter(getApplicationContext(), authorList);
    listView.setAdapter(customListViewAdapter);

这是我的 CustomListView 适配器的代码。

CustomListView 适配器

    package com.novamlineam.meezan;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.zip.Inflater;


public class CustomListViewAdapter extends BaseAdapter {

    private Context mContext;
    private  ArrayList<HashMap<String, String>> books;
    private static LayoutInflater inflater = null;


    public CustomListViewAdapter(Context context, ArrayList<HashMap<String, String>> data) {

        mContext = context;
        books = data;
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    }


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

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

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View view = convertView;

        if (convertView == null){

            view = inflater.inflate(R.layout.list_row, null);

            TextView title = (TextView) view.findViewById(R.id.libraryName);
            TextView author = (TextView) view.findViewById(R.id.libraryVersion);
            TextView pages = (TextView) view.findViewById(R.id.libraryCopyright);

            HashMap<String, String> mBook = new HashMap<>();

            mBook = books.get(position);



            title.setText(mBook.get("title"));
            author.setText(mBook.get("author"));
            pages.setText(mBook.get("pages"));




        }


        return view;
    }
}

这是我得到的输出

output of CustomListView Adapter
remaining output of CustomListView Adapter

请帮助我。

Answer 1

试试这个：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view;
    if (convertView == null){
        view = inflater.inflate(R.layout.list_row, null);
    } else {
        view = convertView;
    }

    TextView title = (TextView) view.findViewById(R.id.libraryName);
    TextView author = (TextView) view.findViewById(R.id.libraryVersion);
    TextView pages = (TextView) view.findViewById(R.id.libraryCopyright);

    HashMap<String, String> mBook = new HashMap<>();
    mBook = books.get(position);

    title.setText(mBook.get("title"));
    author.setText(mBook.get("author"));
    pages.setText(mBook.get("pages"));

    return view;
}

希望对你有帮助！