如何将数据添加到不同的模型类android

Question

我是 android 编程的新手，今天我想将数据添加到另一个模型类

在另一个类模型中是相同的模型

但我不知道要添加它

例子

我的第一个模型

public class TelephoneModel {
 private List<DataBean> data;
 public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        private String id;
        private String name;

 public String getId() {
            return id;
        }

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

public String getName() {
            return name;
        }

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

还有我的第二个模型

public class TelephoneDetailModel {
private List<DataBean> data;
  public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
  private String id;
        private String name;

 public String getId() {
            return id;
        }

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

        public String getName() {
            return name;
        }

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

我在

中有数据

List<TelephoneModel.DataBean> databeans = new ArrayList<>;
List<TelephoneDetailModel.DataBean> dataDetailbeans = new ArrayList<>;

我想将数据databeans 添加到dataDetailbeans

如何添加，请举例说明，

谢谢！

Answer 1

你好，像这样改变你的模型类（使用起来很简单）

--> 电话型号

public class TelephoneModel {

private String id;
private String name;

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

public String getId() {
    return id;
}

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

public String getName() {
    return name;
}

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

}

--> TelephoneDetailModel

public class TelephoneDetailModel {

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

private String id;
private String name;

public String getId() {
    return id;
}

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

public String getName() {
    return name;
}

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

}

--> 你的活动

ArrayList<TelephoneModel> databeans = new ArrayList<>();
    ArrayList<TelephoneDetailModel> dataDetailBeans = new ArrayList<>();

    // add data into databean

    databeans.add(new TelephoneModel("id-1", "name-1"));
    databeans.add(new TelephoneModel("id-2", "name-2"));

    // now add data databeans to dataDetailbeans

    for (int i = 0; i < databeans.size(); i++) {
        dataDetailBeans.add(new TelephoneDetailModel(databeans.get(i)
                .getId(), databeans.get(i).getName()));
    }

如果有任何问题，请随时问我...

Answer 2

• 试试这个

List<TelephoneDetailModel.DataBean> databeans = new ArrayList();

        TelephoneDetailModel.DataBean dataBean = new TelephoneDetailModel.DataBean();
        dataBean.setId("1");
        dataBean.setName("PREM");
        databeans.add(dataBean);


        TelephoneDetailModel.DataBean model1 = new TelephoneDetailModel.DataBean();
        model1.setId("2");
        model1.setName("PREM2");
        databeans.add(model1);


        TelephoneDetailModel.DataBean model2 = new TelephoneDetailModel.DataBean();
        model2.setId("3");
        model2.setName("PREM3");
        databeans.add(model2);


        TelephoneDetailModel.DataBean model3 = new TelephoneDetailModel.DataBean();
        model3.setId("4");
        model3.setName("PREM4");
        databeans.add(model3);


        for (int i = 0; i < databeans.size(); i++) {

            Log.e("ID", databeans.get(i).getId());
            Log.e("NAME", databeans.get(i).getName());
        }

输出

com.example.user33.demoapplication E/ID: 1
com.example.user33.demoapplication E/NAME: PREM
com.example.user33.demoapplication E/ID: 2
com.example.user33.demoapplication E/NAME: PREM2
com.example.user33.demoapplication E/ID: 3
com.example.user33.demoapplication E/NAME: PREM3
com.example.user33.demoapplication E/ID: 4
com.example.user33.demoapplication E/NAME: PREM4

• 试试这个

public class TelephoneDetailModel {

    private List<DataBean> data;

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        private String id;
        private String name;

        public DataBean() {

        }

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

        public String getId() {
            return id;
        }

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

        public String getName() {
            return name;
        }

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

现在在您的arraylist 中添加数据试试这个

List<TelephoneDetailModel.DataBean> databeans = new ArrayList();
databeans.add(new TelephoneDetailModel.DataBean("6","NEW NAME"));

Answer 3

TelephoneModel 类中的DataBean 和TelephoneDetailModel 不同，不能将Datadean 添加到另一个列表中