hotfix in InfinityPagedComponent and PagedComponent

pagination/compose/src/commonMain/kotlin/InfinityPagedComponent.kt

@@ -18,7 +18,7 @@ class InfinityPagedComponentContext<T> internal constructor(
     size: Int
 ) {
     internal val startPage = SimplePagination(page, size)
-    internal val iterationState: MutableState<Pair<Int, Pagination?>> = mutableStateOf(0 to null)
+    internal val iterationState: MutableState<Pagination?> = mutableStateOf(null)
     internal val dataState: MutableState<List<T>?> = mutableStateOf(null)
     internal var lastPageLoaded = false
 
@@ -27,11 +27,11 @@ class InfinityPagedComponentContext<T> internal constructor(
      */
     fun loadNext() {
         if (lastPageLoaded) return
-        if (iterationState.value.second is SimplePagination) return // Data loading has been inited but not loaded yet
+        if (iterationState.value is SimplePagination) return // Data loading has been inited but not loaded yet
 
         iterationState.value = iterationState.value.let {
-            if ((it.second as? PaginationResult<*>) ?.isLastPage == true) return
-            (it.first + 1) to (it.second ?: startPage).nextPage()
+            if ((it as? PaginationResult<*>) ?.isLastPage == true) return
+            (it ?: startPage).nextPage()
         }
     }
 
@@ -42,7 +42,7 @@ class InfinityPagedComponentContext<T> internal constructor(
         dataState.value = null
         lastPageLoaded = false
         iterationState.value = iterationState.value.let {
-            (it.first + 1) to null
+            null
         }
     }
 }
@@ -66,12 +66,12 @@ internal fun <T> InfinityPagedComponent(
 ) {
     val context = remember { InfinityPagedComponentContext<T>(page, size) }
 
-    LaunchedEffect(context.iterationState.value.first) {
-        val paginationResult = loader(context, context.iterationState.value.second ?: context.startPage)
+    LaunchedEffect(context.iterationState.value ?.page) {
+        val paginationResult = loader(context, context.iterationState.value ?: context.startPage)
         if (paginationResult.isLastPage) {
             context.lastPageLoaded = true
         }
-        context.iterationState.value = context.iterationState.value.copy(second = paginationResult)
+        context.iterationState.value = paginationResult
         context.dataState.value = (context.dataState.value ?: emptyList()) + paginationResult.results
     }
 

pagination/compose/src/commonMain/kotlin/PagedComponent.kt

@@ -23,7 +23,7 @@ class PagedComponentContext<T> internal constructor(
     initialPage: Int,
     size: Int
 ) {
-    internal val iterationState: MutableState<Pair<Int, Pagination>> = mutableStateOf(0 to SimplePagination(preset?.page ?: initialPage, preset?.size ?: size))
+    internal val iterationState: MutableState<Pagination> = mutableStateOf(SimplePagination(preset?.page ?: initialPage, preset?.size ?: size))
     
     internal var dataOptional: PaginationResult<T>? = preset
         private set
@@ -35,7 +35,7 @@ class PagedComponentContext<T> internal constructor(
     fun loadNext() {
         iterationState.value = iterationState.value.let {
             if (dataState.value ?.isLastPage == true) return
-            (it.first + 1) to it.second.nextPage()
+            it.nextPage()
         }
     }
 
@@ -44,10 +44,10 @@ class PagedComponentContext<T> internal constructor(
      */
     fun loadPrevious() {
         iterationState.value = iterationState.value.let {
-            if (it.second.isFirstPage) return
-            (it.first - 1) to SimplePagination(
-                it.second.page - 1,
-                it.second.size
+            if (it.isFirstPage) return
+            SimplePagination(
+                it.page - 1,
+                it.size
             )
         }
     }
@@ -57,7 +57,7 @@ class PagedComponentContext<T> internal constructor(
      */
     fun reload() {
         iterationState.value = iterationState.value.let {
-            it.copy(it.first + 1)
+            SimplePagination(it.page, it.size)
         }
     }
 }
@@ -82,8 +82,8 @@ internal fun <T> PagedComponent(
 ) {
     val context = remember { PagedComponentContext(preload, initialPage, size) }
 
-    LaunchedEffect(context.iterationState.value) {
-        context.dataState.value = loader(context, context.iterationState.value.second)
+    LaunchedEffect(context.iterationState.value.page, context.iterationState.value.hashCode()) {
+        context.dataState.value = loader(context, context.iterationState.value)
     }
 
     context.dataState.value ?.let {

pagination/compose/src/jvmTest/kotlin/InfinityPagedComponentTests.kt

@@ -30,8 +30,8 @@ class InfinityPagedComponentTests {
                 }
             ) {
                 if (it == null) {
-                    if (this.iterationState.value.second != null) {
-                        assertEquals(0, (this.iterationState.value.second as? SimplePagination) ?.page)
+                    if (this.iterationState.value != null) {
+                        assertEquals(0, (this.iterationState.value as? SimplePagination) ?.page)
                     }
                 } else {
                     assertEquals(expectedList, it)