Android如何将整个ArrayList传递到另一个Activity，跳转崩溃如何解决？

你遇到的报错是Intent传递自定义对象集合时序列化失败，Android系统的Parcel机制无法序列化你自定义的AudioModel类，因为该类没有实现Parcelable接口，这是Intent在组件间传递自定义对象的强制要求。

1. 让AudioModel实现Parcelable接口 #

修改你的AudioModel类代码，示例实现如下：

public class AudioModel implements Parcelable {
    private String aName;
    private String aPath;
    private String aAlbum;
    private String albumart;

    // 你原来的构造方法、get、set方法保留不变
    public AudioModel(String aName, String aPath, String aAlbum, String albumart) {
        this.aName = aName;
        this.aPath = aPath;
        this.aAlbum = aAlbum;
        this.albumart = albumart;
    }

    protected AudioModel(Parcel in) {
        aName = in.readString();
        aPath = in.readString();
        aAlbum = in.readString();
        albumart = in.readString();
    }

    public static final Creator<AudioModel> CREATOR = new Creator<AudioModel>() {
        @Override
        public AudioModel createFromParcel(Parcel in) {
            return new AudioModel(in);
        }

        @Override
        public AudioModel[] newArray(int size) {
            return new AudioModel[size];
        }
    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(aName);
        dest.writeString(aPath);
        dest.writeString(aAlbum);
        dest.writeString(albumart);
    }

    // 你原来的getter方法保留
    public String getaName() { return aName; }
    public String getaPath() { return aPath; }
    public String getaAlbum() { return aAlbum; }
    public String getAlbumart() { return albumart; }
}

如果你的AudioModel还有其他字段，记得在writeToParcel和Parcel构造方法里同步添加读写逻辑，顺序要保持一致。

2. 修正Adapter中Intent传值的错误 #

你原来传递POSITION时传的是对象的toString()，实际应该传递当前点击的下标int值：

@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
    AudioModel currentSong = arrayList.get(position);
    holder.name.setText(currentSong.getaName());
    holder.album.setText(currentSong.getaAlbum());
    holder.imageView.setImageBitmap(BitmapFactory.decodeFile(currentSong.getAlbumart()));
    holder.imageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent in = new Intent(context,PlayerActivity.class);
            // 单个字段可以不用传，后面直接从list取就行，这里保留也不影响
            in.putExtra("SONG",currentSong.getaName());
            in.putExtra("PATH",currentSong.getaPath());
            in.putExtra("ALBUM",currentSong.getaAlbum());
            in.putParcelableArrayListExtra("LIST",arrayList);
            // 修正：传递int类型的位置下标
            in.putExtra("POSITION", position);
            context.startActivity(in);
        }
    });
}

3. 修正PlayerActivity的取值逻辑 #

public class PlayerActivity extends AppCompatActivity {
    TextView songanme, songAlbum,duration,movetime;
    ImageView playbutton,nextbtn,previousbtn;
    SeekBar seekBar;
    MediaPlayer mediaPlayer ;
    ArrayList<AudioModel>  list;
    int CURRENT_POSITION ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_player);
        songanme = findViewById(R.id.music_name_pl);
        movetime = findViewById(R.id.move_time);
        seekBar = findViewById(R.id.seekBar);
        songAlbum = findViewById(R.id.music_album_pl);
        duration = findViewById(R.id.duration);
        playbutton = findViewById(R.id.play_btn_pl);
        nextbtn = findViewById(R.id.next_btn_pl);
        previousbtn = findViewById(R.id.previous_pl);
        songanme.setSelected(true);
        Intent intent = getIntent();
        // 直接从Intent取Parcelable集合
        list = intent.getParcelableArrayListExtra("LIST");
        // 取位置下标
        CURRENT_POSITION = intent.getIntExtra("POSITION",0);
        // 后面直接用list.get(CURRENT_POSITION)就能拿到当前点击的歌曲信息
    }
}

内容的提问来源于stack exchange，提问作者Vikram Choudhary