Android ExoPlayer播放raw文件夹下的文件

1. activity布局

<com.google.android.exoplayer2.ui.PlayerView
        android:id="@+id/exo_player"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

2. Activity代码

package com.example.myraw;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.net.Uri;
import android.os.Bundle;

import com.google.android.exoplayer2.SimpleExoPlayer;
import com.google.android.exoplayer2.source.MediaSource;
import com.google.android.exoplayer2.source.ProgressiveMediaSource;
import com.google.android.exoplayer2.ui.PlayerView;
import com.google.android.exoplayer2.upstream.DataSource;
import com.google.android.exoplayer2.upstream.DataSpec;
import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;
import com.google.android.exoplayer2.upstream.RawResourceDataSource;
import com.google.android.exoplayer2.util.Log;
import com.google.android.exoplayer2.util.Util;

public class MainActivity extends AppCompatActivity {
    private PlayerView playerView;
    private SimpleExoPlayer player;
    private Context context;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        playerView = findViewById(R.id.exo_player);
        context = MainActivity.this;
        initializePlayer();
    }

    private void initializePlayer() {
        player = new SimpleExoPlayer.Builder(context).build();
        playerView.setPlayer(player);
        RawResourceDataSource rawResourceDataSource = new RawResourceDataSource(context);

        Uri uri = RawResourceDataSource.buildRawResourceUri(R.raw.h);
        DataSpec dataSpec = new DataSpec(uri);
        try {
            rawResourceDataSource.open(dataSpec);
        } catch (RawResourceDataSource.RawResourceDataSourceException e) {
            e.printStackTrace();
        }

        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(context,
                Util.getUserAgent(context,"myExoPlayer"));
        MediaSource mediaSource = new ProgressiveMediaSource.Factory(dataSourceFactory)
                .createMediaSource(rawResourceDataSource.getUri());
        player.prepare(mediaSource);
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
       player.release();
    }
}

3. 主要代码

3.1 设置音频路径

Uri uri = RawResourceDataSource.buildRawResourceUri(R.raw.h);
try {
    rawResourceDataSource.open(dataSpec);
} 
catch (RawResourceDataSource.RawResourceDataSourceException e) {
    e.printStackTrace();
}

3.2 ExoPlayer音频设置

DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(context,
        Util.getUserAgent(context,"myExoPlayer"));
MediaSource mediaSource = new ProgressiveMediaSource.Factory(dataSourceFactory)
        .createMediaSource(rawResourceDataSource.getUri());
player.prepare(mediaSource);