本文共 1502 字，大约阅读时间需要 5 分钟。

package com.example.myapplication;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.os.Environment;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.TextView;import java.io.File;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {
       @Override    protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        System.out.println("11111111");        System.out.println(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC));        ///mnt/sdcard/Music        File file=new File("/sdcard/Music");        File[] files=file.listFiles();        if (files == null){
               Log.e("error","空目录");        }        List
   
     s = new ArrayList<>();        for(int i =0;i
    
      arrayAdapter= new ArrayAdapter
     
       (                MainActivity.this, android.R.layout.simple_list_item_1,s);        ListView listView = (ListView) findViewById(R.id.lv);        listView.setAdapter(arrayAdapter);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
               @Override            public void onItemClick(AdapterView
       parent, View view, int position, long id) {
                   System.out.println(id);            }        });    }}
     
    
   

转载地址：https://blog.csdn.net/weixin_33595571/article/details/106914270 如侵犯您的版权，请留言回复原文章的地址，我们会给您删除此文章，给您带来不便请您谅解！