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MultiSelectCheckBoxItemsActivity.kt
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MultiSelectCheckBoxItemsActivity.kt
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package smartrecycleradapter.feature
/*
* Created by Manne Öhlund on 2019-08-10.
* Copyright (c) All rights reserved.
*/
import android.os.Bundle
import android.view.Menu
import android.view.MenuItem
import androidx.activity.viewModels
import kotlinx.android.synthetic.main.activity_simple_item.recyclerView
import smartadapter.SmartRecyclerAdapter
import smartadapter.viewevent.listener.OnClickEventListener
import smartadapter.viewevent.listener.OnMultiItemCheckListener
import smartadapter.viewevent.model.ViewEvent
import smartadapter.viewevent.viewmodel.ViewEventViewModel
import smartrecycleradapter.R
import smartrecycleradapter.utils.showToast
import smartrecycleradapter.viewholder.SimpleSelectableCheckBoxViewHolder
class MultiSelectCheckBoxItemsActivity : BaseSampleActivity() {
class MultiItemCheckViewModel : ViewEventViewModel<ViewEvent, OnMultiItemCheckListener>(
OnMultiItemCheckListener(
viewHolderType = SimpleSelectableCheckBoxViewHolder::class,
viewId = R.id.checkBox
)
)
lateinit var smartRecyclerAdapter: SmartRecyclerAdapter
private val multiItemCheckViewModel: MultiItemCheckViewModel by viewModels()
private var deleteMenuItem: MenuItem? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
supportActionBar?.title = "Multi CheckBox Select"
val items = (0..100).toMutableList()
smartRecyclerAdapter = SmartRecyclerAdapter
.items(items)
.map(Integer::class, SimpleSelectableCheckBoxViewHolder::class)
.add(multiItemCheckViewModel.observe(this) {
handleCheckEvent(it)
})
.add(OnClickEventListener {
showToast("onClick ${it.position}")
})
.into(recyclerView)
}
override fun onCreateOptionsMenu(menu: Menu?): Boolean {
menuInflater.inflate(R.menu.delete, menu)
deleteMenuItem = menu?.findItem(R.id.delete)
return super.onCreateOptionsMenu(menu)
}
override fun onOptionsItemSelected(item: MenuItem?): Boolean {
when (item?.itemId) {
R.id.delete -> {
multiItemCheckViewModel.viewEventListener.removeSelections()
item.isVisible = false
}
}
return super.onOptionsItemSelected(item)
}
private fun handleCheckEvent(it: ViewEvent) {
showToast("Item click ${it.position}\n" +
"${multiItemCheckViewModel.viewEventListener.selectedItemsCount} of " +
"${it.adapter.itemCount} selected items")
supportActionBar?.subtitle =
"${multiItemCheckViewModel.viewEventListener.selectedItemsCount} / ${it.adapter.itemCount} selected"
deleteMenuItem?.isVisible = multiItemCheckViewModel.viewEventListener.selectedItemsCount > 0
}
}