如何通过intent将对象发送到Android中的另一个Activity？

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button button = findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MyObject myObject = new MyObject("Hello, SecondActivity!");
                Intent intent = new Intent(MainActivity.this, SecondActivity.class);
                intent.putExtra("MY_OBJECT_KEY", myObject);
                startActivity(intent);
            }
        });
    }
}

import android.os.Parcel;
import android.os.Parcelable;

public class MyObject implements Parcelable {
    private String message;

    public MyObject(String message) {
        this.message = message;
    }

    protected MyObject(Parcel in) {
        message = in.readString();
    }

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

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

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

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(message);
    }

    public String getMessage() {
        return message;
    }
}

public class SecondActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        Intent intent = getIntent();
        if (intent != null && intent.hasExtra("MY_OBJECT_KEY")) {
            MyObject myObject = intent.getParcelableExtra("MY_OBJECT_KEY");
            TextView textView = findViewById(R.id.textView);
            textView.setText(myObject.getMessage());
        }
    }
}