Habib Kazemi
8 years ago
committed by
Geoffrey Métais
Geoffrey Métais
6 changed files with 139 additions and 28 deletions
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package org.videolan.vlc.gui |
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import android.app.AlertDialog |
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import android.content.Context |
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import android.content.DialogInterface |
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import android.content.DialogInterface.OnMultiChoiceClickListener |
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import android.util.AttributeSet |
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import android.widget.ArrayAdapter |
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import android.widget.SpinnerAdapter |
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import androidx.appcompat.widget.AppCompatSpinner |
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class MultiSelectionSpinner : AppCompatSpinner, OnMultiChoiceClickListener, DialogInterface.OnDismissListener{ |
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private var items = mutableListOf<String>() |
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private var selection = mutableListOf<Boolean>() |
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private var adapter: ArrayAdapter<String> |
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private var listener: org.videolan.vlc.gui.OnItemSelectListener? = null |
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val selectedIndices: List<Int> |
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get() { |
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return selection.mapIndexed { index, b -> Pair(index, b)}.filter { it.second }.map { it.first } |
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} |
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constructor(context: Context) : super(context) { |
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adapter = ArrayAdapter(context, android.R.layout.simple_spinner_item) |
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super.setAdapter(adapter) |
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} |
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constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { |
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adapter = ArrayAdapter(context, android.R.layout.simple_spinner_item) |
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super.setAdapter(adapter) |
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} |
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override fun onClick(dialog: DialogInterface, index: Int, isChecked: Boolean) { |
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if (index < selection.size) { |
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selection[index] = isChecked |
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adapter.clear() |
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adapter.add(buildSelectedItemString()) |
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} else { |
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throw IllegalArgumentException( |
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"Argument 'index' is out of bounds.") |
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} |
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} |
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override fun performClick(): Boolean { |
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val builder = AlertDialog.Builder(context) |
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builder.setOnDismissListener(this) |
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builder.setMultiChoiceItems(items.toTypedArray(), selection.toBooleanArray(), this).show() |
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return true |
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} |
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override fun onDismiss(dialog: DialogInterface?) { |
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listener?.onItemSelect(selectedIndices) |
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} |
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override fun setAdapter(adapter: SpinnerAdapter) { |
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throw RuntimeException( |
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"setAdapter is not supported by MultiSelectSpinner. Use setItems instead") |
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} |
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fun setItems(items: List<String>) { |
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this.items = items.toMutableList() |
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adapter.clear() |
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adapter.add(items[0]) |
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selection.addAll(items.map{false}) |
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} |
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override fun setSelection(index: Int) { |
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selection = selection.map { false }.toMutableList() |
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if (index >= 0 && index < selection.size) selection[index] = true |
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else throw IllegalArgumentException("Index $index is out of bounds.") |
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adapter.clear() |
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adapter.add(buildSelectedItemString()) |
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listener?.onItemSelect(selectedIndices) |
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} |
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fun setSelection(selectedIndices: List<Int>) { |
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selection = selection.map { false }.toMutableList() |
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selectedIndices.forEach { |
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if (it >= 0 && it < selection.size) selection[it] = true |
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else throw IllegalArgumentException("Index $it is out of bounds.") |
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} |
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adapter.clear() |
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adapter.add(buildSelectedItemString()) |
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listener?.onItemSelect(this.selectedIndices) |
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} |
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private fun buildSelectedItemString(): String { |
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val sb = StringBuilder() |
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val selectedItems = items.filterIndexed { index, _ -> selection[index] } |
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if (selectedItems.isEmpty()) sb.append("All") |
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else selectedItems.forEachIndexed { index, s -> |
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if (index > 0) sb.append(',') |
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sb.append(s) |
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} |
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return sb.toString() |
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} |
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fun setOnItemsSelectListener(l: org.videolan.vlc.gui.OnItemSelectListener) { |
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listener = l |
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} |
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} |
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interface OnItemSelectListener { |
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fun onItemSelect(selectedItems: List<Int>) |
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} |
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