片段类
open class BaseScanItemFragment : BaseSOFFragment(), OnItemClickListener {
private lateinit var binding: FragmentScanItemBinding
lateinit var viewModel: ScanItemViewModel
val progressBar = CustomProgressBar()
var adapterSize = 0
var selectedPos = 0
var scanItemModel: List<ScanItemModel>? = null
override fun getCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
binding = DataBindingUtil.inflate(
inflater,
R.layout.fragment_scan_item,
container,
false
)
//Progress Bar with Text
progressBar.show(activity as MainActivity, "Please Wait...")
viewModel = ViewModelProviders.of(this).get(ScanItemViewModel::class.java)
viewModel.departmentsList.observe(this, Observer {
updateDepartmentSpinner()
})
getScannedItemDetails("")
activity?.let {
binding.upcScanText.setOnEditorActionListener { v, keyCode, event ->
if (keyCode == EditorInfo.IME_ACTION_DONE) {
var upcRetailText = upcScanText.text.toString()
upcScanText.text.clear()
getScannedItemDetails(upcRetailText)
}
false
}
}
binding.lifecycleOwner = viewLifecycleOwner
binding.scanItemViewModel = viewModel
binding.scanItemInterface = this
setupListPeopleView(binding.recyclerView.scanItems)
val content = SpannableString("r667yyy")
content.setSpan(UnderlineSpan(), 0, content.length, 0)
binding.textViewItemName.setText(content)
viewModel.getTotalCount().observe(this, Observer {
val df = DecimalFormat("#.##")
df.roundingMode = RoundingMode.CEILING
totalCost.text = "$" + df.format(it.toFloat()).toString()
})
return binding.root
}
private fun setupListPeopleView(scanItemRecycleView: RecyclerView) {
val adapter = ScanItemAdapter()
scanItemRecycleView.adapter = adapter
scanItemRecycleView.layoutManager = LinearLayoutManager(context)
adapter.setListener(this)
}
private fun getScannedItemDetails(upsText: String) {
viewModel.getItems(upsText).observe(this, Observer {
viewModel.setScannedData()
updateUI()
val scanItemAdapter = binding.recyclerView.scanItems.adapter as ScanItemAdapter
scanItemAdapter.setScanItemList(it)
adapterSize = it.size
scanItemModel = it
})
}
private fun updateDepartmentSpinner() {
var listDepartment: List<DepartmentsModel>? = null
progressBar.dialog.dismiss()
activity?.let { it ->
viewModel.departmentsList.observe(this, Observer {
listDepartment = it
})
}
val departmentAdapter: ArrayAdapter<String>? =
activity?.let {
ArrayAdapter<String>(
it,
android.R.layout.simple_spinner_item,
viewModel.updateStringList()
)
}
deptSpinner.setAdapter(departmentAdapter)
deptSpinner?.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
override fun onNothingSelected(parent: AdapterView<*>?) {
}
override fun onItemSelected(
parent: AdapterView<*>?,
view: View?,
position: Int,
id: Long
) {
scanItemModel?.get(selectedPos)?.deptName = listDepartment!![position].deptName
scanItemModel?.get(selectedPos)?.deptID = listDepartment!![position].deptID
}
}
}
private fun updateUI() {
upcText.setText(viewModel.retailUPs)
val content = SpannableString(viewModel.descriptionLink)
content.setSpan(UnderlineSpan(), 0, content.length, 0)
linkDesc.text = content
unitCost.setText("$" + viewModel.unitCost)
extCost.setText("$" + viewModel.extCost)
overrideExtCost.setText("$" + viewModel.overrideCost)
totalCost.text = "$" + viewModel.overrideCost
PrefUtil(requireContext()).save("UnitCost", viewModel.unitCost)
PrefUtil(requireContext()).save("OverrideExtCost", viewModel.overrideCost)
PrefUtil(requireContext()).save("TotalCost", viewModel.overrideCost)
val uomCategories: MutableList<String> = ArrayList()
uomCategories.add("KG")
val uomAdapter: ArrayAdapter<String>? =
activity?.let {
ArrayAdapter<String>(
it,
android.R.layout.simple_spinner_item,
uomCategories
)
}
unitSpinner.setAdapter(uomAdapter)
}
override fun getViewCreated(view: View, savedInstanceState: Bundle?) {
Log.v("Test", "Test")
}
override fun getTitle(): String {
return resources.getString(R.string.scan_items)
}
override fun getToolBarIcon(): IntArray {
return intArrayOf(Utils.ICON_VISIBLE, Utils.ICON_VISIBLE)
}
override fun getToolBarLogoImage(): Int {
return 0
}
override fun isToolbarVisible(): Boolean {
return true
}
override fun onClick(v: View?) {
}
override val kodein: Kodein
get() = TODO("Not yet implemented")
override fun onItemClick(position: Int) {
Toast.makeText(activity, "Clicked Item --> " + position, Toast.LENGTH_SHORT).show()
selectedPos = position
}
override fun onCountChanged(listScanModel: List<ScanItemModel>) {
viewModel.setTotalCount(listScanModel)
}
适配器类
class ScanItemAdapter() : RecyclerView.Adapter<ScanItemAdapter.DateViewHolder>(){
private var scanItemList: List<ScanItemModel>? = null
private lateinit var scanItemViewModel: ItemScanListBinding
private lateinit var listener: OnItemClickListener
init {
this.scanItemList = emptyList()
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DateViewHolder {
Log.v("Clicked_ADAPTER", "Clicked itemLookup 28")
scanItemViewModel = DataBindingUtil.inflate(LayoutInflater.from(parent.context), R.layout.item_scan_list,
parent, false)
Log.v("Clicked_ADAPTER", "Clicked itemLookup 31")
return DateViewHolder(scanItemViewModel)
}
override fun onBindViewHolder(holder: DateViewHolder, position: Int) {
Log.v("Clicked_ADAPTER", "Clicked itemLookup 36")
holder.bindScanItemDetail(scanItemList!![position])
}
override fun getItemCount(): Int {
return scanItemList!!.size
}
fun setScanItemList(scanList: List<ScanItemModel>) {
this.scanItemList = scanList
notifyDataSetChanged()
}
fun setListener(listener: OnItemClickListener) {
this.listener = listener
}
inner class DateViewHolder(private var itemDetailBinding: ItemScanListBinding) : RecyclerView.ViewHolder(itemDetailBinding.scanDetail) {
fun bindScanItemDetail(scanItemResponse: ScanItemModel) {
if (itemDetailBinding.scanItemDetailModel == null) {
itemDetailBinding.scanItemDetailModel =
ScanItemDetailViewModel(scanItemResponse, itemView.context)
} else {
itemDetailBinding.scanItemDetailModel!!.setScanDetail(scanItemResponse)
itemDetailBinding.executePendingBindings()
}
itemDetailBinding.root.setOnClickListener {
Log.v("Click", "Click")
listener.onItemClick(layoutPosition)
}
itemDetailBinding.root.quantityValue.addTextChangedListener(object : TextWatcher {
override fun afterTextChanged(p0: Editable?) {
Log.v("Click", "AfterText")
}
override fun beforeTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
Log.v("Click", "BeforeText")
}
override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
Log.v("Click", "onText")
if(s.isNotEmpty()) {
scanItemList!!.get(layoutPosition).count = s.toString().toInt()
scanItemList!!.get(layoutPosition).pack = s.toString()
listener.onCountChanged(scanItemList!!)
}
}
}
)
itemDetailBinding.root.itemLookup.setOnClickListener {
Log.v("Clicked_ADAPTER", "Clicked itemLookup")
}
itemDetailBinding.root.itemDelete.setOnClickListener {
Log.v("Clicked_ADAPTER", "Clicked itemDelete")
}
}
}
}
适配器xml布局
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<data>
<variable
name="scanItemDetailModel"
type="com.sample.viewModel.common.ScanItemDetailViewModel" />
</data>
<com.sample.utilities.SwipeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:dragFromEdge="right">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="30dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical|end"
android:paddingStart="20dp"
android:paddingEnd="20dp"
android:orientation="horizontal">
<ImageButton
android:id="@+id/itemLookup"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="#2d8dfd"
app:srcCompat="@drawable/ic_search_24dp"
android:text="Item Lookup"/>
<ImageButton
android:id="@+id/itemDelete"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="#ff0000"
app:srcCompat="@drawable/ic_delete_24dp"
android:text="Delete"/>
</LinearLayout>
</FrameLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/scanDetail"
android:layout_width="match_parent"
android:layout_height="30dp"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp">
<TextView
android:id="@+id/itemDescription"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:layout_marginTop="1dp"
android:layout_marginEnd="60dp"
android:ellipsize="end"
android:hint="@string/app_name"
android:maxLines="1"
android:text="@{scanItemDetailModel.description}"
android:textAlignment="center"
android:textColor="@color/colorBlack"
app:layout_constraintRight_toLeftOf="@+id/quantityValue"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/quantityValue"
android:layout_width="40dp"
android:layout_height="25dp"
android:layout_marginRight="3dp"
android:background="@drawable/edit_text_shape"
android:maxLines="1"
android:paddingLeft="5dp"
android:paddingTop="3dp"
android:paddingRight="7dp"
android:paddingBottom="3dp"
android:text="@{scanItemDetailModel.quantity}"
android:textAlignment="textEnd"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.sample.utilities.SwipeLayout>
</layout>
我被困住了。我收到错误消息：
java.lang.IllegalStateException：创建视图时不得附加ViewHolder视图。确保您没有将“ true”传递给LayoutInflater.inflate（...，boolean attachToRoot）
的attachToRoot参数
我该如何调试？
RecyclerView.ViewHolder(itemDetailBinding.scanDetail)
这里您要将子布局scanDetail传递给父构造函数。您不应该那样做；通过的视图不应附加到任何父视图。
改为通过itemDetailBinding.root。