Fixed updating lists being to heavy for the UI thread

Moved list diff recalculation to the computing thread instead

app/src/main/java/com/topjohnwu/magisk/ui/hide/HideViewModel.kt

@@ -18,6 +18,7 @@ import com.topjohnwu.magisk.model.events.HideProcessEvent
 import com.topjohnwu.magisk.ui.base.MagiskViewModel
 import com.topjohnwu.magisk.utils.Utils
 import com.topjohnwu.magisk.utils.toSingle
+import com.topjohnwu.magisk.utils.update
 import com.topjohnwu.superuser.Shell
 import io.reactivex.Single
 import me.tatarka.bindingcollectionadapter2.OnItemBind
@@ -31,7 +32,7 @@ class HideViewModel(
     val query = KObservableField("")
     val isShowSystem = KObservableField(false)
 
-    private val allItems = DiffObservableList(ComparableRvItem.callback)
+    private val allItems = mutableListOf<ComparableRvItem<*>>()
     val items = DiffObservableList(ComparableRvItem.callback)
     val itemBinding = OnItemBind<ComparableRvItem<*>> { itemBinding, _, item ->
         item.bind(itemBinding)
@@ -72,16 +73,21 @@ class HideViewModel(
             .map { HideRvItem(it, hideTargets.blockingGet()) }
             .toList()
             .map { it.sortBy { it.item.info.name }; it }
+            .doOnSuccess { allItems.update(it) }
+            .flatMap { queryRaw() }
             .applyViewModel(this)
-            .subscribeK(onError = Timber::e) {
+            .subscribeK(onError = Timber::e) { items.update(it.first, it.second) }
-                allItems.update(it)
-                query()
-            }
             .add()
     }
 
-    private fun query(showSystem: Boolean = isShowSystem.value, query: String = this.query.value) {
+    private fun query() = queryRaw()
-        allItems.toSingle()
+        .subscribeK { items.update(it.first, it.second) }
+        .add()
+
+    private fun queryRaw(
+        showSystem: Boolean = isShowSystem.value,
+        query: String = this.query.value
+    ) = allItems.toSingle()
         .map { it.filterIsInstance<HideRvItem>() }
         .flattenAsFlowable { it }
         .filter {
@@ -90,9 +96,7 @@ class HideViewModel(
         }
         .filter { if (showSystem) true else it.item.info.flags and ApplicationInfo.FLAG_SYSTEM == 0 }
         .toList()
-            .subscribeK { items.update(it) }
+        .map { it to items.calculateDiff(it) }
-            .add()
-    }
 
     private fun toggleItem(item: HideProcessRvItem) {
         val state = if (item.isHidden.value) "add" else "rm"

app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt

@@ -20,6 +20,7 @@ import com.topjohnwu.magisk.ui.base.MagiskViewModel
 import com.topjohnwu.magisk.utils.Event
 import com.topjohnwu.magisk.utils.Utils
 import com.topjohnwu.magisk.utils.toSingle
+import com.topjohnwu.magisk.utils.update
 import io.reactivex.Single
 import me.tatarka.bindingcollectionadapter2.OnItemBind
 
@@ -29,7 +30,7 @@ class ModuleViewModel(
 
     val query = KObservableField("")
 
-    private val allItems = DiffObservableList(ComparableRvItem.callback)
+    private val allItems = mutableListOf<ComparableRvItem<*>>()
 
     val itemsInstalled = DiffObservableList(ComparableRvItem.callback)
     val itemsRemote = DiffObservableList(ComparableRvItem.callback)
@@ -73,16 +74,18 @@ class ModuleViewModel(
             .flattenAsFlowable { it }
             .map { RepoRvItem(it) }
             .toList()
+            .doOnSuccess { allItems.update(it) }
+            .flatMap { queryRaw() }
             .applyViewModel(this)
-            .subscribeK {
+            .subscribeK { itemsRemote.update(it.first, it.second) }
-                allItems.update(it)
-                query()
-            }
             .add()
     }
 
-    private fun query(query: String = this.query.value) {
+    private fun query() = queryRaw()
-        allItems.toSingle()
+        .subscribeK { itemsRemote.update(it.first, it.second) }
+        .add()
+
+    private fun queryRaw(query: String = this.query.value) = allItems.toSingle()
         .map { it.filterIsInstance<RepoRvItem>() }
         .flattenAsFlowable { it }
         .filter {
@@ -91,9 +94,7 @@ class ModuleViewModel(
                     it.item.description.contains(query, ignoreCase = true)
         }
         .toList()
-            .subscribeK { itemsRemote.update(it) }
+        .map { it to itemsRemote.calculateDiff(it) }
-            .add()
-    }
 
     private fun <Result> Cursor.toList(transformer: (Cursor) -> Result): List<Result> {
         val out = mutableListOf<Result>()

app/src/main/java/com/topjohnwu/magisk/utils/XList.kt

@@ -0,0 +1,6 @@
+package com.topjohnwu.magisk.utils
+
+fun <T> MutableList<T>.update(newList: List<T>) {
+    clear()
+    addAll(newList)
+}