Question

如何实现使用通用数据类型将Set < ArrayList < ? > >写入我的包裹？

这是我的代码..

        dest.writeList(getArrTRA());
        dest.writeList(getArrTSAC());
        dest.write???(getArrListSet()); //how can i write my Set<ArrayList<?


public Set<ArrayList<?>> getArrListSet() {
        return arrSetOfPaymentMode;
    }

Answer 1

public class ImageContainer implements Serializable, Parcelable  {
/**
 * 
 */
private static final long serialVersionUID = 1L;

public ImageContainer() {
    // TODO Auto-generated constructor stub
}
public ImageContainer(Parcel in) {
    // TODO Auto-generated constructor stub
    readFromParcel(in);
}


/**
 * custom images in this article
 */
@SerializedName("Image")
ArrayList<ImageCls> alCustomImages=new ArrayList<ImageCls>();

public ArrayList<ImageCls> getAlCustomImages() {
    return alCustomImages;
}
public void setAlCustomImages(ArrayList<ImageCls> alCustomImages) {
    this.alCustomImages = alCustomImages;
}
@Override
public int describeContents() {
    // TODO Auto-generated method stub
    return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
    // TODO Auto-generated method stub
    dest.writeList(alCustomImages);
}
@SuppressWarnings("unchecked")
private void readFromParcel(Parcel in) {
    // TODO Auto-generated method stub
    this.alCustomImages = in.readArrayList(ImageCls.class.getClassLoader());
}

@SuppressWarnings("rawtypes")
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
    public ImageContainer createFromParcel(Parcel in) {
        return new ImageContainer(in);
    }

    public ImageContainer[] newArray(int size) {
        return new ImageContainer[size];
    }
};
}

你的班级应该实现Parcelable。上面的代码就是一个例子。

您的问题是您正在尝试将通用数据类型读/写到包。但是无法在parcel中读/写通用数据类型。详细了解如何使用Parcelable here和Parcel here

Android Parcelable - 使用通用数据类型将数据读/写到Parcel

1 个答案: