android viewmodel 带参数

需要实现 ViewModelProvider.Factory

?

1 2 3 4 5 6 7 8 9 10

class MyModel(val id: String) : ViewModel() {       class ViewModeFactory(private val id: String) : ViewModelProvider.Factory {           override fun <T : ViewModel?> create(modelClass: Class<T>): T {             return MyModel(id) as T         }       } }

　使用我们创建的model

?

1 2 3

val myModel = ViewModelProvider(this,     MyModel.ViewModeFactory(id)  )[MyModel::class.java]