ListView简单用法

在activity_main.xml中添加ListView控件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <ListView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

编写MainActivity

package com.example.uniapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends AppCompatActivity {

    private String[] data = {
            "Apple", "Banana", "Orange", "Watermelon",
            "Pear", "Grape", "Pineapple", "strawberry",
            "Cherry", "Mango", "Apple", "Banana", "Orange",
            "Watermelon", "Pear", "Grape", "Pineapple",
            "strawberry", "Cherry", "Mango"
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(
                MainActivity.this,
                android.R.layout.simple_list_item_1, //android内置的布局文件
                data
        );
        ListView listView = findViewById(R.id.list_view);
        listView.setAdapter(adapter);
    }
}