For example, we have a BufferedReader reader, associated with the json file through InputStreamReader. To get a file data we can do this:
For example, we have a file in our assets folder app/src/main/assets/sample_teas.json. To get an InputStream for reading it, from out Context context, we can try do this:
An example. In our ViewModelFactory (that implements ViewModelProvider.Factory) we have an instance of our Repository, named mRepository. Our ViewModel has such constructor: class MyViewModel(private val mRepository: MyRepository) : ViewModel() ... Next, in our ViewModelFactory create ViewModel method (overriden) looks like this: override fun <T : ViewModel?> create(modelClass: Class<T>): T { return try { //MISSED RETURN VALUE HERE” } catch (e: InstantiationException) { throw RuntimeException("Cannot create an instance of $modelClass", e) } catch (e: IllegalAccessException) { throw RuntimeException("Cannot create an instance of $modelClass", e) } catch (e: NoSuchMethodException) { throw RuntimeException("Cannot create an instance of $modelClass", e) } catch (e: InvocationTargetException) { throw RuntimeException("Cannot create an instance of $modelClass", e) } } What should we write instead of “//MISSED RETURN VALUE HERE”?
What is demonstrated by the code below? // RawDao.kt @Dao interface RawDao { @RawQuery fun getUserViaQuery(query: SupportSQLiteQuery?): User? } // Usage of RawDao ... val query = SimpleSQLiteQuery("SELECT * FROM User WHERE id = ? LIMIT 1", arrayOf<Any>(sortBy)) val user = rawDao.getUserViaQuery(query) ...
What happens when you create a DAO method and annotate it with @Insert? Example: @Dao interface MyDao { @Insert(onConflict = OnConflictStrategy.REPLACE) fun insertUsers(vararg users: User) }
What is a correct part of an Implicit Intent for sharing data implementation?
