我正在研究auto-value
及其扩展名,即我的Android应用程序中的auto-value-parcel
和auto-value-parcel-adapter
。
我有这些模型课:
@AutoValue
public abstract class Xenarchaeota implements Parcelable {
@ParcelAdapter(AmoebaTypeAdapter.class)
public abstract Set<Amoeba> amoebas();
public static Builder builder() {
return new AutoValue_Xenarchaeota.Builder();
}
@AutoValue.Builder
public abstract static class Builder {
public abstract Builder setAmoebas(Set<Amoeba> value);
public abstract Xenarchaeota build();
}
}
和
@AutoValue
public abstract class Amoeba implements Parcelable {
public abstract String surname();
public static Builder builder() {
return new AutoValue_Amoeba.Builder();
}
@AutoValue.Builder
public abstract static class Builder {
public abstract Builder surname(final String value);
public abstract Amoeba build();
}
}
我的类型适配器是我出现问题的地方
class AmoebaTypeAdapter implements TypeAdapter<Set<Amoeba>> {
@Override
public Set<Amoeba> fromParcel(Parcel in) {
final ArrayList<Amoeba> arrayList = new ArrayList<>();
in.readTypedList(arrayList, Amoeba.CREATOR); // How to access the CREATOR?
return new TreeSet<>(arrayList);
}
@Override
public void toParcel(Set<Amoeba> value, Parcel dest) {
final ArrayList<Amoeba> arrayList = new ArrayList<>(value);
dest.writeTypedList(arrayList);
}
}
我需要传递给readTypedArray的创建者在AutoValue_Amoeba中声明。
我的错误在哪里?对
auto-value-parcel
的误解? 最佳答案
AutoValue:宗地扩展无法处理集,但是如果将属性转换为List
,则无需自定义适配器即可直接使用。如果要将其视为Set
,可以执行此操作。请记住,您可能还需要缓存Set
。
@AutoValue
public abstract class Xenarchaeota implements Parcelable {
abstract List<Amoeba> amoebaList();
public Set<Amoeba> amoebas() {
return new TreeSet(amoebaList());
}
public static Builder builder() {
return new AutoValue_Xenarchaeota.Builder();
}
@AutoValue.Builder
public abstract static class Builder {
public abstract Builder setAmoebas(Set<Amoeba> value);
public abstract Xenarchaeota build();
}
}