IO Exception编写可序列化对象？传递图像arraylist

Question

class Selected_img_layout：

 Intent i = new Intent(Selected_img_layout.this, ImagSlider.class);
                Bundle bundle = new Bundle();
                bundle.putSerializable("image_data", spacecrafts);
                i.putExtras(bundle);
                startActivity(i);

class ImagSlider：

 Bundle bundleobject = getIntent().getExtras();
 spacecrafts = (ArrayList<Spacecraft>) bundleobject.getSerializable("image_data");

航天器类：

public class Spacecraft implements Serializable {
        Uri uri;

        public Spacecraft() {
        }

        public Spacecraft(String name, Uri uri) {
            this.name = name;
            this.uri = uri;
        }

        public Uri getUri() {
            return uri;
        }

        public void setUri(Uri uri) {
            this.uri = uri;
        }
     }

错误

 java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = com.example.letsgo.mypdfconverter.Spacecraft)

Answer 1

替换这个：

 public Spacecraft(String name, Uri uri) {
            this.name = name;
            this.uri = uri;
        }

有：

 public Spacecraft( Uri uri) {
            this.uri = uri;
        }

Answer 2

试试这个代码：Intent i = new Intent（Selected_img_layout.this，ImagSlider.class）; i.putExtras（ “IMAGE_DATA”，宇宙飞船）; startActivity（ⅰ）;

尝试这样可以将您的数据用于其他活动

宇宙飞船spaceCraft =（Spacecraft）getIntent（）。getSerializableExtra（“image_data”）