Android 获取本地所有音频文件

首先需要建立一个音频文件的model类package com.example.yanshishow; //音乐的model类public class Music {String name;long size;String url;long duration;public String getName() {return name;}public void setName(String name) {this.name = name;}public long getSize() {return size;}public void setSize(long size) {this.size = size;}public String getUrl() {return url;}public void setUrl(String url) {this.url = url;}public long getDuration() {return duration;}public void setDuration(long duration) {this.duration = duration;}}然后就可以在activity里面写方法//查询本地的音乐文件private void loadFileData() {ContentResolver resolver = this.getContentResolver();Cursor cursor = resolver.query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, null);cursor.moveToFirst();musicList = new ArrayList();if (cursor.moveToFirst()) {do {String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE)); // 鏍囬long size = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.SIZE)); // 澶у皬String url = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA)); long duration = cursor.getLong(cursor.getColumnIndex(MediaStore.Audio.Media.DURATION)); // 鏃堕暱 String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM)); if (duration >= 1000 && duration <= 900000) { Music music = new Music(); music.setName(title); music.setSize(size); music.setUrl(url); music.setDuration(duration); musicList.add(music); }} while(cursor.moveToNext());}List musicname = new ArrayList();for (Music music : musicList) {//将歌曲的名字都提取出来装在一个数组中musicname.add(music.getName());}Toast.makeText(MainActivity.this, musicname+"", 0).show();cursor.close();}最后调用这个方法就可以了