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 create(modelClass: Class): 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"?

Question

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"?

Giulia Alberghi · Accepted Answer

modelClass.getConstructor(MyRepository::class.java).newInstance(mRepository)

Giulia Alberghi · Answer

modelClass.getConstructor().newInstance(mRepository)

Giulia Alberghi · Answer

modelClass.getConstructor(MyRepository::class.java) .newInstance()

Question list

List of questions

Question 1

(0)

Question 2

(0)

Question 3

(0)

Question 4

(0)

Question 5

(0)

Question 6

(0)

Question 7

(0)

Question 8

(0)

Question 9

(0)

Question 10

(0)

Related questions

Question 16 - Associate Android Developer discussion

Suggested answer: C

0 comments