android:intent传递对象(Parcelable)

一，代码：

1,所传递对象的类

package com.example.okdemo1.model;

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

public class Goods3 implements Parcelable {
    //商品id
    private int id;
    //商品名称
    private String name;

    public Goods3(int id, String name) {
        this.id = id;
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public static final Creator<Goods3> CREATOR = new Creator<Goods3>() {
        @Override
        public Goods3 createFromParcel(Parcel in) {
            Goods3 g3 = new Goods3(in.readInt(),in.readString());
            return g3;
        }

        @Override
        public Goods3[] newArray(int size) {
            return new Goods3[size];
        }
    };

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

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

}

2，发送对象:

        //给按钮增加点击事件
        Button myButton = findViewById(R.id.apibutton);
        myButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 处理点击事件
                Intent intent = new Intent(MainActivity.this, PreferenceActivity.class);

                Goods3 three = new Goods3(13,"苏东坡新传");
                // 增加要传递的参数
                intent.putExtra("three", three);  // 传递字符串数据
                startActivity(intent, ActivityOptions.makeSceneTransitionAnimation(MainActivity.this).toBundle());
                System.out.println("点击完成");
             }
        });

3，接收对象:

public class PreferenceActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_preference);

        //接收参数
        Intent intent = getIntent();
        Goods3 three = (Goods3)intent.getParcelableExtra("three");
        Log.d("参数",three.getName());
        Log.d("参数",String.valueOf(three.getId()));
    }
}

二，测试效果: