我要离开这个 stackoverflow 答案/sf/answers/2437229581/将数据对象绑定到自定义视图。但是,在一切都设置好之后,我的视图没有被数据更新,而是TextView保持空白。这是我的代码(简化,为了适应这里)
activity_profile.xml::
<layout xmlns...>
<data>
<variable name="viewModel" type="com.example.ProfileViewModel"/>
</data>
<com.example.MyProfileCustomView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:viewModel="@{viewModel}">
</layout>
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view_profile.xml:
<layout xmlns...>
<data>
<variable name="viewModel" type="com.example.ProfileViewModel"/>
</data>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@{viewModel.name}">
</layout>
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MyProfileCustomView.kt:
class MyProfileCustomView : FrameLayout {
constructor...
private val binding: ViewProfileBinding = ViewProfileBinding.inflate(LayoutInflater.from(context), this, true)
fun setViewModel(profileViewModel: ProfileViewModel) {
binding.viewModel = profileViewModel
}
}
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ProfileViewModel.kt:
class ProfileViewModel(application: Application) : BaseViewModel(application) {
val name = MutableLiveData<String>()
init {
profileManager.profile()
.observeOn(AndroidSchedulers.mainThread())
.subscribe(::onProfileSuccess, Timber::d)
}
fun …Run Code Online (Sandbox Code Playgroud) data-binding android android-custom-view kotlin android-viewmodel