InsanusMokrassar/MicroUtils
1
0
Fork 0
mirror of https://github.com/InsanusMokrassar/MicroUtils.git synced 2025-09-03 23:29:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

fill changes

Browse Source
This commit is contained in:
InsanusMokrassar
2021-06-17 13:39:02 +06:00
parent 63eb7b7ea8
commit e715772dbf
6 changed files with 60 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
android/recyclerview/build.gradle
View File

@@ -11,6 +11,7 @@ kotlin {
commonMain {
dependencies {
api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlin_coroutines_version"
api project(":micro_utils.common")
}
}
androidMain {

16
android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/RecyclerViewAdapter.kt
View File

@@ -3,11 +3,19 @@ package dev.inmo.micro_utils.android.recyclerview
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView
import kotlinx.coroutines.flow.*
abstract class RecyclerViewAdapter<T>: RecyclerView.Adapter<AbstractViewHolder<T>>() {
protected abstract val data: List<T>
private val _dataCountState by lazy {
MutableStateFlow<Int>(data.size)
}
val dataCountState: StateFlow<Int> by lazy {
_dataCountState.asStateFlow()
}
var emptyView: View? = null
set(value) {
field = value
@@ -19,31 +27,37 @@ abstract class RecyclerViewAdapter<T>: RecyclerView.Adapter<AbstractViewHolder<T
object : RecyclerView.AdapterDataObserver() {
override fun onItemRangeChanged(positionStart: Int, itemCount: Int) {
super.onItemRangeChanged(positionStart, itemCount)
_dataCountState.value = data.size
checkEmpty()
}
override fun onItemRangeChanged(positionStart: Int, itemCount: Int, payload: Any?) {
super.onItemRangeChanged(positionStart, itemCount, payload)
_dataCountState.value = data.size
checkEmpty()
}
override fun onChanged() {
super.onChanged()
_dataCountState.value = data.size
checkEmpty()
}
override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
super.onItemRangeRemoved(positionStart, itemCount)
_dataCountState.value = data.size
checkEmpty()
}
override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
super.onItemRangeMoved(fromPosition, toPosition, itemCount)
_dataCountState.value = data.size
checkEmpty()
}
override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
super.onItemRangeInserted(positionStart, itemCount)
_dataCountState.value = data.size
checkEmpty()
}
}
@@ -59,7 +73,7 @@ abstract class RecyclerViewAdapter<T>: RecyclerView.Adapter<AbstractViewHolder<T
private fun checkEmpty() {
emptyView ?. let {
if (data.isEmpty()) {
if (dataCountState.value == 0) {
it.visibility = View.VISIBLE
} else {
it.visibility = View.GONE

33
android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/StateFlowBasedRecyclerViewAdapter.kt Normal file
View File

@@ -0,0 +1,33 @@
package dev.inmo.micro_utils.android.recyclerview
import dev.inmo.micro_utils.common.Diff
import dev.inmo.micro_utils.common.PreviewFeature
import kotlinx.coroutines.*
import kotlinx.coroutines.flow.*
@PreviewFeature("This feature in preview state and may contains different bugs. " +
"Besides, this feature can be changed in future in non-compatible way")
abstract class StateFlowBasedRecyclerViewAdapter<T>(
listeningScope: CoroutineScope,
dataState: StateFlow<List<T>>
) : RecyclerViewAdapter<T>() {
override var data: List<T> = emptyList()
init {
dataState.onEach {
val diff = Diff(data, it)
data = it
withContext(Dispatchers.Main) {
diff.removed.forEach {
notifyItemRemoved(it.index)
}
diff.replaced.forEach { (from, to) ->
notifyItemMoved(from.index, to.index)
}
diff.added.forEach {
notifyItemInserted(it.index)
}
}
}.launchIn(listeningScope)
}
}