[英]Parcelable List that contains a custom object
I am trying to pass data ( ArrayList
) between Activities
on Android
我试图在Android
Activities
之间传递数据( ArrayList
)
All works fine when the class that implements Parcelable
doesn´t contains custom objects (Shop), but what do I have to do if my class contains one? 当实现Parcelable
的类不包含自定义对象(Shop)时,一切正常,但如果我的类包含自定义对象,我该怎么做?
Shop 店
public Shop(Parcel in) {
this.id = in.readString();
this.name = in.readString();
this.type = in.readString();
this.lat= in.readDouble();
this.long= in.readDouble();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(this.id);
dest.writeString(this.name);
dest.writeString(this.type);
dest.writeDouble(this.lat);
dest.writeDouble(this.long);
}
@SuppressWarnings("rawtypes")
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
public Shop createFromParcel(Parcel in) {
return new Shop(in);
}
public Shop[] newArray(int size) {
return new Shop[size];
}
};
And here is my other class Offer which is the one that contains an object of Shop 这是我的另一个类商品,它包含商店的对象
public Offer(Parcel in) {
this.id = in.readInt();
this.title = in.readString();
this.myShop = in.read.......();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(this.id);
dest.writeString(this.title);
dest.write......(this.myShop);
}
Which data type should I read and write ? 我应该读写哪种数据类型?
Thank you very much! 非常感谢你!
Your Shop
class should implement Parcelable
and you should use 您的Shop
类应该实现Parcelable
,您应该使用
public Offer(Parcel in) {
this.id = in.readInt();
this.title = in.readString();
this.myShop = in.readParcelable(Shop.class.getClassLoader());
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(this.id);
dest.writeString(this.title);
dest.writeParcelable(this.myShop, flags);
}
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