Google的GithubBrowserSample取决于是否进行搜索,以便它调用结果。在我的方案中,没有任何搜索,我只想在片段加载时调用它。但是,我不确定如何执行此操作。利用断点和反复试验,我似乎无法将其标记为进入我选择的存储库方法。任何提示将不胜感激。
我的代码的一些摘要:
public class CategoryViewModel extends ViewModel {
private final LiveData<Resource<List<Category>>> categories;
@Inject
CategoryViewModel(@NonNull CategoryRepository categoryRepository){
categories = categoryRepository.getDBCategories();
}
与样本中的等效:
public class SearchViewModel extends ViewModel {
private final MutableLiveData<String> query = new MutableLiveData<>();
private final LiveData<Resource<List<Repo>>> results;
private final NextPageHandler nextPageHandler;
@Inject
SearchViewModel(RepoRepository repoRepository) {
nextPageHandler = new NextPageHandler(repoRepository);
results = Transformations.switchMap(query, search -> {
if (search == null || search.trim().length() == 0) {
return AbsentLiveData.create();
} else {
return repoRepository.search(search);
}
});
}
答案 0 :(得分:0)
对于同一条船上的其他任何人,只需修改SearchViewModel构造函数以对查询进行硬编码,我很快就能弄清楚,即使在搜索片段上观察到数据时,它也可以立即加载到示例应用程序上
所以我打开了SearchViewModel:
@Inject
SearchViewModel(RepoRepository repoRepository) {
nextPageHandler = new NextPageHandler(repoRepository);
results = Transformations.switchMap(query, search -> {
if (search == null || search.trim().length() == 0) {
return AbsentLiveData.create();
} else {
return repoRepository.search(search);
}
});
}
收件人
@Inject
SearchViewModel(RepoRepository repoRepository) {
results = repoRepository.search("shadow");
nextPageHandler = new NextPageHandler(repoRepository);
}
希望这对其他人有帮助。