39 lines
926 B
Kotlin
Vendored
39 lines
926 B
Kotlin
Vendored
// KT-30629
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abstract class BaseFragment<T : BaseViewModel> {
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lateinit var viewModel: T
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open fun onActivityCreated(): String {
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viewModel = retrieveViewModel()
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return "Fail"
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}
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abstract fun retrieveViewModel(): T
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}
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class DerivedFragment : BaseFragment<DerivedViewModel>() {
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override fun onActivityCreated(): String {
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super.onActivityCreated()
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return bind(viewModel::property)
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}
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override fun retrieveViewModel(): DerivedViewModel = DerivedViewModel()
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inline fun <T> bind(crossinline viewModelGet: () -> T?): String {
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return setOnFocusChangeListener { viewModelGet() as String }
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}
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fun setOnFocusChangeListener(l: () -> String): String {
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return l()
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}
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}
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abstract class BaseViewModel
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class DerivedViewModel : BaseViewModel() {
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var property: String? = "OK"
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}
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fun box(): String {
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return DerivedFragment().onActivityCreated()
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}
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