Я реализовал магазин MobX в своем приложении React-Native, чтобы отслеживать, отслеживается ли пользователь или отписался от него. Подписка / отмена регистрации выполняется, но хранилище MobX не обновляется. Я пытаюсь обновить его напрямую с помощью this.follows.items[index] = { ...user, isFollowing: !user.isFollowing }
, но по какой-то причине магазин не запускает обновление.
Вот View
Компонент
@observer
class FollowsListView extends Component<Props> {
follows =
this.props.followType === 'followers'
? followsStore.getFollowersListLoader(this.props.userId)
: followsStore.getFollowingListLoader(this.props.userId);
componentDidMount = () => {
this.follows.lazyLoad();
};
render() {
return (
<>
<AppHeader
title={
this.props.followType === 'followers' ? 'FOLLOWERS' : 'FOLLOWING'
}
/>
<FlatList
contentContainerStyle={{ padding: 15 }}
data={this.follows.items}
keyExtractor={this.getId}
onEndReached={this.follows.loadMore}
onEndReachedThreshold={0.2}
onRefresh={this.follows.loadFromStart}
refreshing={this.follows.isLoading}
renderItem={this.renderFollows}
/>
</>
);
}
private getId = (user: { id: string }) => user.id;
renderUserActionButton(user: UserContainer) {
console.log(user);
return (
user.id !== _SessionManager.id && (
<TouchableOpacity
onPress={() => this.openActionMenu(user.following || user.owner)}
>
<Image source={Images.moreDots} />
</TouchableOpacity>
)
);
}
openActionMenu(user: User) {
const name = user.name || user.username;
const followOption = { name: 'follow', title: `Follow @${name}` };
const unfollowOption = { name: 'unfollow', title: `Unfollow @${name}` };
const options = {
customButtons: [user.isFollowing ? unfollowOption : followOption],
title: null,
takePhotoButtonTitle: null,
chooseFromLibraryButtonTitle: null,
};
ImagePicker.showImagePicker(options, ({ customButton }) => {
if (customButton === 'follow') {
this.props.changeIsFollowingUser(user.id, false);
}
if (customButton === 'unfollow') {
this.props.changeIsFollowingUser(user.id, true);
}
const index = this.follows.items.findIndex((user) => user.id);
this.follows.items[index] = { ...user, isFollowing: !user.isFollowing };
});
}
private renderFollows: ListRenderItem<UserContainer> = ({ item: user }) => {
const userId = user.following ? user.following.id : user.id;
return (
<UserRow
actionContent={this.renderUserActionButton(user)}
onPress={() => this.props.navigateTo('ProfilePublic', { userId })}
user={user.following || user.owner}
/>
);
};
}
const mapDispatchToProps = (dispatch: Function): MappedDispatch =>
bindActionCreators(
{
changeIsFollowingUser,
navigateTo,
},
dispatch
);
export default connect(
null,
mapDispatchToProps
)(FollowsListView);
Вот это Follows Store
import ListLoader from 'Network/ListLoader';
import { Follows } from 'Follows/Types';
import _API from 'Network/API';
class FollowsStore {
followers = new Map<string, Follows>();
followersList = new Map<string, ListLoader<Follows>>();
following = new Map<string, Follows>();
followingList = new Map<string, ListLoader<Follows>>();
getFollowersListLoader(userId: string) {
const list = this.followersList.get(userId);
if (list) return list;
const newList = new ListLoader<Follows>({
fetchData: async (params) => {
const url = `users/${userId}/followers`;
const response = await _API.get(url, { params });
return response.data;
},
onLoad: (data) => {
for (const user of data.items) {
this.followers.set(user.id, user);
}
},
});
this.followersList.set(userId, newList);
return newList;
}
getFollowingListLoader(userId: string) {
const list = this.followingList.get(userId);
if (list) return list;
const newList = new ListLoader<Follows>({
fetchData: async (params) => {
const url = `users/${userId}/following`;
const response = await _API.get(url, { params });
return response.data;
},
onLoad: (data) => {
for (const user of data.items) {
this.following.set(user.id, user);
}
},
});
this.followingList.set(userId, newList);
console.log(newList);
return newList;
}
}
const followsStore = new FollowsStore();
export default followsStore;