Created
February 11, 2020 14:28
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Easy way to Toast with ViewModel, LiveData & a bit of abstraction. 3/4
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| class UsableActivity : BaseActivity() { | |
| private lateinit var viewModel: UsableViewModel | |
| override val baseViewModel: BaseViewModel? | |
| get() = viewModel | |
| // DataBinding stuff | |
| private lateinit var binding: ActivityUsableBinding | |
| override fun onCreate(savedInstanceState: Bundle?) { | |
| super.onCreate(savedInstanceState) | |
| // DataBinding stuff | |
| binding = DataBindingUtil.setContentView(this@UsableActivity, R.layout.activity_usable) | |
| initViewModelAndBinding { | |
| // Do other stuff if needed | |
| } | |
| } | |
| /** | |
| * Do multiple things: | |
| * - Initialize the current [viewModel] ViewModel | |
| * - Do the binding | |
| * - Initialize the [viewModel] observers | |
| */ | |
| private fun initViewModelAndBinding(after: () -> Unit ) { | |
| viewModel = provideViewModel() | |
| binding.viewModel = viewModel | |
| binding.lifecycleOwner = this | |
| binding.executePendingBindings() | |
| initObservers() | |
| after() | |
| } | |
| /** | |
| * Should be done after [baseViewModel] instantiation | |
| */ | |
| override fun initObservers() { | |
| // Important : don't forget to call the super method | |
| super.initObservers() | |
| } | |
| } |
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