Question

我正在将可打包数据类的对象传递给用于简单字符串的活动我可以把它放到另一个活动中，但是当我在对象中输入新的字符串列表时，该对象（现在包括一个列表）不会被传递到其他活动中。

这是我的数据类”

package com.example.user.shoppy.models;

import android.os.Parcel;
import android.os.Parcelable;
import android.support.annotation.NonNull;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;


public class ProductModel implements Parcelable {

String product_name, description, price, currency, location, userId, image, 
product_Id,featuredImage;

List<String> imagesNames;

public ProductModel() {
}



// this constructor is getting all the string variables
public ProductModel(String product_Id, String product_name, String description, String price, String currency, String userId, String location) {
    this.product_name = product_name;
    this.description = description;
    this.price = price;
    this.currency = currency;
    this.location = location;
    this.userId = userId;
    this.product_Id = product_Id;
}
// this constructor is getting all the string variables but also an list 
public ProductModel(String product_id, String product_name, String des, String price, String currency, String userId, String location, String featuredImage, List imagesNames) {
    this.product_name = product_name;
    this.description = des;
    this.price = price;
    this.currency = currency;
    this.location = location;
    this.userId = userId;
    this.product_Id = product_id;
    this.featuredImage = featuredImage;
    this.imagesNames = imagesNames;
}


public String getProduct_Id() {
    return product_Id;
}

public void setProduct_Id(String product_Id) {
    this.product_Id = product_Id;
}

public String getImage() {
    return image;
}

public void setImage(String image) {
    this.image = image;
}

public String getUserId() {
    return userId;
}

public void setUserId(String userId) {
    this.userId = userId;
}

public String getProduct_name() {
    return product_name;
}

public void setProduct_name(String product_name) {
    this.product_name = product_name;
}

public String getDescription() {
    return description;
}

public void setDescription(String description) {
    this.description = description;
}

public String getPrice() {
    return price;
}

public void setPrice(String price) {
    this.price = price;
}

public String getCurrency() {
    return currency;
}

public void setCurrency(String currency) {
    this.currency = currency;
}

public String getLocation() {
    return location;
}

public void setLocation(String location) {
    this.location = location;
}

public String getFeaturedImage() {        return featuredImage;    }

public void setFeaturedImage(String featuredImage) {        this.featuredImage = featuredImage;    }

public List<String> getImagesNames() {        return imagesNames;    }

public void setImagesNames(List<String> imagesNames) {        this.imagesNames = imagesNames;    }

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

@Override
public void writeToParcel(Parcel dest, int flags) {
    dest.writeString(description);
    dest.writeString(product_name);
    dest.writeString(price);
    dest.writeString(currency);
    dest.writeString(location);
    dest.writeString(userId);
    dest.writeString(image);
    dest.writeString(product_Id);
    dest.writeString(featuredImage);
    dest.writeStringList(imagesNames);
}

public static final Parcelable.Creator<ProductModel> CREATOR = new Creator<ProductModel>() {
    @Override
    public ProductModel createFromParcel(Parcel source) {
        return new ProductModel(source);
    }

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

private ProductModel(@NonNull Parcel in) {
    description = in.readString();
    product_name = in.readString();
    price = in.readString();
    currency = in.readString();
    location = in.readString();
    userId = in.readString();
    image = in.readString();
    product_Id = in.readString();
    featuredImage=in.readString();
    in.readList(imagesNames,String.class.getClassLoader());
}
}

这是剩余的代码：

  @Override
        public void onClick(View v) {

             Intent intent = new Intent(mContext, ProductSellingActivity.class);
            intent.putExtra("currentProductModel", currentProductModel);
            mContext.startActivity(intent);


        }
    });

现在我的意向培训班

 Intent intent=getIntent();
    currentProductModel= (ProductModel) intent.getParcelableExtra(ProductSellingActivity.INTENTNAME);

Answer 1

第二个活动密钥的接收意图应该相同。

Intent intent=getIntent();
currentProductModel= (ProductModel) intent.getParcelableExtra("currentProductModel");

尝试一下。

Answer 2

我认为您的ProductModel没有在新的Activity中正确创建。

在您的包裹实施中尝试以下操作：

imagesNames = in.readArrayList(ProductModel.class.getClassLoader());

Answer 3

尝试这个；

Bundle bundle=new Bundle();
bundle.putParcelable("currentProductModel","currentProductModel");
intent.putExtras(bundle);

在其他活动中：

 Bundle bundle=this.getIntent().getExtras();
        CurrentProduct currentProduct=bundle.getParcelable("currentProductModel");

将可拆分对象传递给新活动将返回null

3 个答案: