Android Parcelable - read/write 数据到 Parcel 使用通用数据类型

Question

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

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];
    }
};
}

您的 class 应该实施 Parcelable。上面的代码就是一个例子。

Your issue is you are trying to read/write generic data type to the Parcel. But it is not possible to read/write generic data type in parcel. Read more how to use Parcelable here and Parcel here