安卓开发之ArrayAdapter使用

package com.lidaochen.test;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    String objects[] = {"老张", "老王", "老李", "老刘", "老花生米", "老板"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 找到ListView控件
        ListView listView = (ListView)findViewById(R.id.lv);
        //  创建一个ArrayAdapter
        // ArrayAdapter<String> adapter = new ArrayAdapter<>(this, R.layout.item, objects);
        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, R.layout.item1, R.id.tv_name, objects);
        // 设置数据适配器
        listView.setAdapter(adapter);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tv_name"
        android:textSize="20sp"/>


</LinearLayout>

item.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="TextView"
    android:textAppearance="?android:attr/textAppearanceLarge" />