Parcelable和盒裝類

Question

我有下面的類：

public class E implements Parcelable { 
    @SerializedName("a") 
    private String a= null; 
    @SerializedName("b") 
    private BigDecimal b= null; 
    @SerializedName("c") 
    private String c= null; 
    @SerializedName("d") 
    private String d= null;  

    protected E(Parcel in) { 
    number = in.readString(); 
    expirationYear = in.readString(); 
    expirationMonth = in.readString(); 
    } 

public static final Creator<E> CREATOR = new Creator<E>() { 
@Override 
public E createFromParcel(Parcel in) { 
    return new E(in); 
} 

    @Override 
    public E[] newArray(int size) { 
     return new E[size]; 
    }}; 
} 
    @Override 
    public int describeContents() { 
    return 0; 
    } 

    @Override 
    public void writeToParcel(Parcel dest, int flags) { 
    dest.writeString(number); 
    dest.writeString(expirationYear); 
    dest.writeString(expirationMonth); 
    } 
} 

如何包裹數據部件B？或者更好的是，如何包裝盒裝類型？如您所見，writeToParcel方法會丟失數據成員b以及受保護的c'tor。

Answer 1

參見： https://medium.com/the-wtf-files/the-mysterious-case-of-the-bundle-and-the-map-7b15279a794e#.sjbki9dss

How to use Parcelable on non-primitive types?

來解決這個問題（在我看來）的一個好方法是創建類擴展BigDecimal和它實現Parcelable接口。