Hi,
I want to save a list of Parcelable Restaurant objects on
onSaveInstanceState. I created a Restaurant class extending Parcelable
and a RestaurantList object, both shown below. In my main activity I
fill my RestauranList directly from json internet data using GSON:
restaurantList = gson.fromJson(r, RestaurantList.class);
Now, when I want to save the List of Restaurant objects using
protected void onSaveInstanceState(Bundle outState) {
if (restaurantList != null ) {
outState.putParcelableArrayList("restoList",
(ArrayList<Restaurant>)restaurantList.getRestaurants());
}
super.onSaveInstanceState(outState);
}
I get an error, I guess because Parcelable data are not written. How
should I do it? Do I have to create an array of Parcel objects in my
main activity and fill it by calling writeToParcel for each of the
Restaurant objects?
thanks for any suggestion
Julien
**************************RestaurantList
class**************************
public class RestaurantList {
private List<Restaurant> restaurants = new
ArrayList<Restaurant>();
public int getSize() {
return restaurants.size();
}
public List<Restaurant> getRestaurants() {
return this.restaurants;
}
public Restaurant getRestaurant(int i) {
return this.restaurants.get(i);
}
public void setRestaurants(List<Restaurant> restaurants) {
this.restaurants = restaurants;
}
public List<String> getRestaurantNames() {
List<String> restaurantNames = new ArrayList<String>();
for (int i=0; i<this.restaurants.size(); i++) {
restaurantNames.add(this.restaurants.get(i).getName());
}
return restaurantNames;
}
}
**************************Restaurant class**************************
public class Restaurant implements Parcelable{
private String name;
/* more stuff */
public Restaurant() {}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public void writeToParcel(Parcel out, int flags) {
out.writeStringArray(new String[] {this.name, /* more
stuff*/});
}
public static final Parcelable.Creator CREATOR = new
Parcelable.Creator() {
public Restaurant createFromParcel(Parcel in) { return new
Restaurant(in); }
public Restaurant[] newArray(int size) { return new
Restaurant[size]; }
};
private Restaurant(Parcel in) {
String[] stringData = new String[6];
in.readStringArray(stringData);
this.name = stringData[0];
/* more stuff */
}
public int describeContents(){
return 0;
}
}
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