android:intent传递对象(Gson方式)

一，代码：

gson库安装方式见我其他博文

传递对象的类:

package com.example.okdemo1.model;

public class Goods1 {
    //商品id
    private int id;
    //商品名称
    private String name;

    public Goods1(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;
    }
}

传递数据:

       //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);
                Goods1 one = new Goods1(11,"英国银把雨伞");
                // 增加要传递的参数
                intent.putExtra("one", new Gson().toJson(one));  // 传递字符串数据
                // 启动目标Activity
                startActivity(intent, ActivityOptions.makeSceneTransitionAnimation(MainActivity.this).toBundle());

                System.out.println("点击完成");
             }
        });

接收数据:

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();
        String oneStr = intent.getStringExtra("one");
        Goods1 one = new Gson().fromJson(oneStr,Goods1.class);
        Log.d("参数",one.getName());
        Log.d("参数",String.valueOf(one.getId()));
    }

}

 

二，测试效果:

接收到的参数