我正在嘗試將我的對話框移動到底部作業表對話框。但我面臨的問題是底部作業表對話框沒有像警報對話框那樣的構建器，看起來如此。此外，我在底部表中找不到多選對話框。
val dialogBuilder = MaterialAlertDialogBuilder(this)
dialogBuilder.setTitle(title)
dialogBuilder.setCancelable(false)
dialogBuilder.background =
AppCompatResources.getDrawable(this, R.drawable.bg_white_round_red_ripple)
dialogBuilder.setMultiChoiceItems(
StringArray, booleanArray
) { _, i, b ->
if (b) {
integerArrayList.add(i)
integerArrayList.sort()
} else {
integerArrayList.remove(i)
}
}
dialogBuilder.setPositiveButton("OK") { dialog, which ->
val stringBuilder = StringBuilder()
if (integerArrayList.size > 0) {
for (j in 0 until integerArrayList.size) {
stringBuilder.append(StringArray[integerArrayList[j]])
if (j != integerArrayList.size - 1) {
stringBuilder.append(", ")
}
}
textView.text = stringBuilder.toString()
} else {
textView.text = title
}
}
dialogBuilder.setNegativeButton(
"Cancel"
) { dialogInterface, _ -> // dismiss dialog
dialogInterface.dismiss()
}
val alertDialog = dialogBuilder.create()
alertDialog.show()
有沒有辦法在底部作業表中執行此操作，或者我是否必須創建一個行為像這樣的自定義底部作業表？。有造型解決方案嗎？
uj5u.com熱心網友回復：
許多天后，我決定從頭開始制作一個帶有底部表的自定義 multiSelectDialog。
@AndroidEntryPoint
class MultiSelectDialog (private val title: String?,
private val list: ArrayList<String>,
private var selectedItems: SparseBooleanArray,
val returnVal: (selectedItems: SparseBooleanArray) -> Unit
) : BottomSheetDialogFragment(), MultiSelectDialogListener {
private var _binding: DialogMultiSelectBinding? = null
private val binding get() = _binding!!
val viewModel: MultiSelectDialogViewModel by viewModels()
private lateinit var adapter : MultiSelectDialogRecyclerViewAdapter
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
_binding = DialogMultiSelectBinding.inflate(inflater, container, false)
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
binding.viewmodel = viewModel
viewModel.multiSelectDialogListener = this
binding.rvCheckList.layoutManager = LinearLayoutManager(requireContext())
init()
}
private fun populateRecyclerView() {
adapter = MultiSelectDialogRecyclerViewAdapter(requireContext(), list, selectedItems,
object : MultiSelectDialogRecyclerViewAdapter.OnItemClickListener{
override fun onItemClick(isCheckedList: SparseBooleanArray, position: Int) {
selectedItems = isCheckedList
}
})
binding.rvCheckList.adapter = adapter
}
private fun init(){
populateRecyclerView()
if (!title.isNullOrEmpty()) {
binding.tvTitle.visibility = View.VISIBLE
viewModel.title = title
}
else{
binding.tvTitle.visibility = View.GONE
}
dialog?.setOnKeyListener { _, keyCode, _ ->
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (dialog!!.isShowing) {
dialog!!.cancel()
}
}
true
}
}
override fun onPositiveClick() {
returnVal(selectedItems)
dialog?.dismiss()
}
override fun onNegativeClick() {
dialog?.cancel()
}
override fun onNeutralClick() {
selectedItems.clear()
adapter.setData(selectedItems)
}
override fun onCheckedChangedListener() {
requireView().snackbar("Items Changed")
}
override fun getTheme(): Int {
return R.style.AppBottomSheetDialogTheme
}
}
而這個 Viewmodel 是
@HiltViewModel
class MultiSelectDialogViewModel @Inject constructor() : ViewModel() {
var title: String? = null
var multiSelectDialogListener: MultiSelectDialogListener? = null
fun onPositiveClick(view: View) {
multiSelectDialogListener?.onPositiveClick()
}
fun onNegativeClick(view: View) {
multiSelectDialogListener?.onNegativeClick()
}
fun onNeutralClick(view: View) {
multiSelectDialogListener?.onNeutralClick()
}
fun onSelectedItemsChanged(){
multiSelectDialogListener?.onCheckedChangedListener()
}
}
也是聽眾
interface MultiSelectDialogListener {
fun onPositiveClick()
fun onNegativeClick()
fun onNeutralClick()
fun onCheckedChangedListener()
}
回收器視圖配接器
class MultiSelectDialogRecyclerViewAdapter(
val context: Context,
private var arrayList: ArrayList<String>,
private var isCheckedList: SparseBooleanArray,
private var onItemClickListener: OnItemClickListener
):
RecyclerView.Adapter<MultiSelectDialogRecyclerViewAdapter.ViewHolder>(){
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val v = LayoutInflater.from(parent.context)
.inflate(R.layout.item_check_box_list_dialog, parent, false)
return ViewHolder(v)
}
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
holder.bind(position)
}
override fun getItemCount(): Int {
return arrayList.size
}
fun setData(mIsCheckedList: SparseBooleanArray) {
isCheckedList = mIsCheckedList
notifyDataSetChanged()
}
inner class ViewHolder internal constructor(itemView: View): RecyclerView.ViewHolder(itemView)
{
val checkbox_list_dialog: MaterialCheckBox by lazy { itemView.findViewById<MaterialCheckBox>(R.id.checkbox_list_dialog) }
val btn_positive: Button by lazy { itemView.findViewById<Button>(R.id.btn_positive) }
val btn_negative: Button by lazy { itemView.findViewById<Button>(R.id.btn_negative) }
val btn_neutral: Button by lazy { itemView.findViewById<Button>(R.id.btn_neutral) }
val cl_multi_select_dialog_root: ConstraintLayout by lazy { itemView.findViewById<ConstraintLayout>(R.id.cl_multi_select_dialog_root) }
init {
checkbox_list_dialog.setOnClickListener{
onClick(it)
}
}
fun bind(position: Int) {
// use the sparse boolean array to check
checkbox_list_dialog.isChecked = isCheckedList.get(position, false)
checkbox_list_dialog.text = arrayList[position]
}
fun onClick(v: View?) {
val adapterPosition = absoluteAdapterPosition
if (!isCheckedList.get(adapterPosition, false)) {
checkbox_list_dialog.isChecked = true
isCheckedList.put(adapterPosition, true)
} else {
checkbox_list_dialog.isChecked = false
isCheckedList.put(adapterPosition, false)
}
onItemClickListener.onItemClick(isCheckedList,adapterPosition)
}
}
interface OnItemClickListener {
fun onItemClick(isCheckedList: SparseBooleanArray, position: Int)
}
}
和布局檔案
<layout 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">
<data>
<variable
name="viewmodel"
type="xxx.MultiSelectDialogViewModel" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@ id/cl_multi_select_dialog_root"
tools:context=".ui.dialogs.multi_select.MultiSelectDialog">
<androidx.appcompat.widget.AppCompatTextView
android:id="@ id/tv_title" />
<androidx.recyclerview.widget.RecyclerView
android:id="@ id/rv_check_list" />
<androidx.appcompat.widget.AppCompatButton
android:id="@ id/btn_positive"/>
<androidx.appcompat.widget.AppCompatButton
android:id="@ id/btn_negative" />
<androidx.appcompat.widget.AppCompatButton
android:id="@ id/btn_neutral" />
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
還有風格
<style name="AppBottomSheetDialogTheme"
parent="Theme.MaterialComponents.Light.BottomSheetDialog">
<item name="android:colorAccent">@color/onta_red</item>
<item name="bottomSheetStyle">@style/CustomBottomSheetStyle</item>
</style>
<style name="CustomBottomSheetStyle"
parent="Widget.Design.BottomSheet.Modal">
<item name="android:background">@drawable/bg_white_bottom_sheet</item>
</style>
轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/388714.html
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