我想導航到串列項 (book_item.xml) 的DetailsFragment onClick
book_item.xml
<LinearLayout
...
onBooksClickListener="@{result}">
...
</LinearLayout>
現在它適用于Fragment（全屏）
我想讓它覆寫片段所以想將它轉換為對話框片段
片段的作業代碼
片段類
class DetailsFragment : Fragment() {
private val args by navArgs<DetailsFragmentArgs>()
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
val view = inflater.inflate(R.layout.fragment_details, container, false)
}
}
RowBinding 類
class BooksRowBinding {
companion object {
@ExperimentalCoroutinesApi
@BindingAdapter("onBooksClickListener")
@JvmStatic
fun onBooksClickListener(linearLayout: LinearLayout, result: Result){
linearLayout.setOnClickListener{
try {
val action = BooksListFragmentDirections.actionBooksListFragmentToDetailsFragment(result)
linearLayout.findNavController().navigate(action)
}catch (e: Exception){
Log.d("OnBooksClickListener",e.toString())
}
}
}
要將其轉換為 DailogFragment 我嘗試使用 google android docs 但它沒有解釋如何從 Fragment 類外部打開 dialogFragment
DialogFragment損壞的代碼
片段類
class DetailsFragment : DailogFragment() {
private val args by navArgs<DetailsFragmentArgs>()
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
val view = inflater.inflate(R.layout.fragment_details, container, false)
}
}
RowBinding 類
class BooksRowBinding {
companion object {
@ExperimentalCoroutinesApi
@BindingAdapter("onBooksClickListener")
@JvmStatic
fun onBooksClickListener(linearLayout: LinearLayout, result: Result){
linearLayout.setOnClickListener{
try {
DetailsFragment().show(childFragmentManager,DetailsFragment.TAG)
/****************ERROR *******************
this works only if you call this from within the
onCreateMethod of the Fragment
******************************************/
}catch (e: Exception){
Log.d("OnBooksClickListener",e.toString())
}
}
}
現在我收到錯誤： Unresolved reference: childFragmentManager
my_nav.xml
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@ id/my_nav"
app:startDestination="@id/booksListFragment">
<fragment
android:id="@ id/booksListFragment"
android:name="we.are.suvikranth.ui.BooksListFragment"
android:label="Suvikranth"
tools:layout="@layout/fragment_books_list">
<action
android:id="@ id/action_booksListFragment_to_detailsFragment"
app:destination="@id/detailsFragment" />
</fragment>
<fragment
android:id="@ id/detailsFragment"
android:name="we.are.suvikranth.ui.DetailsFragment"
android:label="Books Details"
tools:layout="@layout/fragment_details" >
<argument
android:name="result"
app:argType="we.are.suvikranth.models.Result" />
</fragment>
</navigation>
uj5u.com熱心網友回復：
使用前面的代碼導航到對話框片段
但是將片段更改為 my_nav.xml 中的對話框
現在RowBinding 類看起來像
class BooksRowBinding {
companion object {
@ExperimentalCoroutinesApi
@BindingAdapter("onBooksClickListener")
@JvmStatic
fun onBooksClickListener(linearLayout: LinearLayout, result: Result){
linearLayout.setOnClickListener{
try {
val action = BooksListFragmentDirections.actionBooksListFragmentToDetailsFragment(result)
linearLayout.findNavController().navigate(action)
}catch (e: Exception){
Log.d("OnBooksClickListener",e.toString())
}
}
}
my_nav.xml看起來像
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@ id/my_nav"
app:startDestination="@id/booksListFragment">
<fragment
android:id="@ id/booksListFragment"
android:name="we.are.suvikranth.ui.BooksListFragment"
android:label="Suvikranth"
tools:layout="@layout/fragment_books_list">
<action
android:id="@ id/action_booksListFragment_to_detailsFragment"
app:destination="@id/detailsFragment" />
</fragment>
<dialog
android:id="@ id/detailsFragment"
android:name="we.are.suvikranth.ui.DetailsFragment"
android:label="Books Details"
tools:layout="@layout/fragment_details" >
<argument
android:name="result"
app:argType="we.are.suvikranth.models.Result" />
</dialog>
</navigation>
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