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update with payload logic

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This commit is contained in:
Brice-W 2021-04-19 13:35:09 +10:00
parent 3c210ca437
commit cba4e65b9e
1 changed files with 33 additions and 7 deletions
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40
app/src/main/java/org/thoughtcrime/securesms/loki/activities/SelectContactsAdapter.kt
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@ -26,7 +26,7 @@ class SelectContactsAdapter(private val context: Context, private val glide: Gli
override fun onBindViewHolder(viewHolder: ViewHolder, position: Int) {
val member = members[position]
viewHolder.view.setOnClickListener { onMemberClick(viewHolder, member) }
viewHolder.view.setOnClickListener { onMemberClick(member) }
val isSelected = selectedMembers.contains(member)
viewHolder.view.bind(Recipient.from(
context,
@ -36,13 +36,39 @@ class SelectContactsAdapter(private val context: Context, private val glide: Gli
isSelected)
}
private fun onMemberClick(viewHolder: ViewHolder, member: String) {
if (selectedMembers.contains(member)) {
selectedMembers.remove(member)
viewHolder.view.toggleCheckbox()
override fun onBindViewHolder(viewHolder: ViewHolder,
position: Int,
payloads: MutableList<Any>) {
if (payloads.isNotEmpty()) {
// Because these updates can be batched,
// there can be multiple payloads for a single bind
when (payloads[0]) {
Payload.MEMBER_CLICKED -> {
val member = members[position]
val isSelected = selectedMembers.contains(member)
viewHolder.view.toggleCheckbox(isSelected)
}
}
} else {
selectedMembers.add(member)
viewHolder.view.toggleCheckbox(true)
// When payload list is empty,
// or we don't have logic to handle a given type,
// default to full bind:
this.onBindViewHolder(viewHolder, position)
}
}
private fun onMemberClick(member: String) {
if (selectedMembers.contains(member)) {
selectedMembers.remove(member)
} else {
selectedMembers.add(member)
}
val index = members.indexOf(member)
notifyItemChanged(index, Payload.MEMBER_CLICKED)
}
// define below the different events used to notify the adapter
enum class Payload {
MEMBER_CLICKED
}
}