Simplify UI code for Magisk logs

We have all texts, no need to go through recyclerview

app/src/main/java/com/topjohnwu/magisk/data/repository/LogRepository.kt

@@ -15,8 +15,22 @@ class LogRepository(
     fun fetchLogs() = logDao.fetchAll()
 
     fun fetchMagiskLogs() = Single.fromCallable {
-        Shell.su("tail -n 5000 ${Const.MAGISK_LOG}").exec().out
-    }.flattenAsFlowable { it }.filter { it.isNotEmpty() }
+        val list = object : AbstractMutableList<String>() {
+            val buf = StringBuilder()
+            override val size get() = 0
+            override fun get(index: Int): String = ""
+            override fun removeAt(index: Int): String = ""
+            override fun set(index: Int, element: String): String = ""
+            override fun add(index: Int, element: String) {
+                if (element.isNotEmpty()) {
+                    buf.append(element)
+                    buf.append('\n')
+                }
+            }
+        }
+        Shell.su("cat ${Const.MAGISK_LOG}").to(list).exec()
+        list.buf.toString()
+    }
 
     fun clearLogs() = logDao.deleteAll()
 

app/src/main/java/com/topjohnwu/magisk/ui/log/LogViewModel.kt

@@ -6,14 +6,13 @@ import com.topjohnwu.magisk.core.Config
 import com.topjohnwu.magisk.core.Const
 import com.topjohnwu.magisk.data.repository.LogRepository
 import com.topjohnwu.magisk.extensions.subscribeK
-import com.topjohnwu.magisk.model.binding.BindingAdapter
-import com.topjohnwu.magisk.model.entity.recycler.ConsoleItem
 import com.topjohnwu.magisk.model.entity.recycler.LogItem
 import com.topjohnwu.magisk.model.entity.recycler.TextItem
 import com.topjohnwu.magisk.model.events.SnackbarEvent
 import com.topjohnwu.magisk.ui.base.BaseViewModel
 import com.topjohnwu.magisk.ui.base.diffListOf
 import com.topjohnwu.magisk.ui.base.itemBindingOf
+import com.topjohnwu.magisk.utils.KObservableField
 import com.topjohnwu.superuser.Shell
 import io.reactivex.Completable
 import io.reactivex.android.schedulers.AndroidSchedulers
@@ -32,18 +31,16 @@ class LogViewModel(
     val itemEmpty = TextItem(R.string.log_data_none)
     val itemMagiskEmpty = TextItem(R.string.log_data_magisk_none)
 
-    // --- main view
+    // --- su log
 
     val items = diffListOf<LogItem>()
     val itemBinding = itemBindingOf<LogItem> {
         it.bindExtra(BR.viewModel, this)
     }
 
-    // --- console
+    // --- magisk log
 
-    val consoleAdapter = BindingAdapter<ConsoleItem>()
-    val itemsConsole = diffListOf<ConsoleItem>()
-    val itemConsoleBinding = itemBindingOf<ConsoleItem>()
+    val consoleText = KObservableField(" ")
 
     override fun refresh(): Disposable {
         val logs = repo.fetchLogs()
@@ -63,12 +60,7 @@ class LogViewModel(
             .ignoreElement()
 
         val console = repo.fetchMagiskLogs()
-            .map { ConsoleItem(it) }
-            .toList()
-            .observeOn(Schedulers.computation())
-            .map { it to itemsConsole.calculateDiff(it) }
-            .observeOn(AndroidSchedulers.mainThread())
-            .doOnSuccess { itemsConsole.update(it.first, it.second) }
+            .doOnSuccess { consoleText.value = it }
             .ignoreElement()
 
         return Completable.merge(listOf(logs, console)).subscribeK()

app/src/main/res/layout/include_log_magisk.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools">
 
     <data>
@@ -15,28 +14,32 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <HorizontalScrollView
+        <ScrollView
+            gone="@{viewModel.consoleText.empty}"
             android:layout_width="match_parent"
             android:layout_height="match_parent">
 
-            <androidx.recyclerview.widget.RecyclerView
-                adapter="@{viewModel.consoleAdapter}"
-                itemBinding="@{viewModel.itemConsoleBinding}"
-                items="@{viewModel.itemsConsole}"
+            <HorizontalScrollView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <TextView
                     android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:clipToPadding="false"
-                android:orientation="vertical"
+                    android:layout_height="wrap_content"
+                    android:fontFamily="monospace"
+                    android:text="@{viewModel.consoleText}"
+                    android:textAppearance="@style/AppearanceFoundation.Caption"
+                    android:textSize="10sp"
                     android:paddingTop="@{viewModel.insets.top + (int) @dimen/internal_action_bar_size}"
                     android:paddingBottom="@{viewModel.insets.bottom}"
-                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-                tools:listitem="@layout/item_console_md2"
-                tools:paddingTop="24dp" />
+                    tools:text="@tools:sample/lorem/random" />
 
             </HorizontalScrollView>
 
+        </ScrollView>
+
         <FrameLayout
-            gone="@{!viewModel.itemsConsole.empty}"
+            gone="@{!viewModel.consoleText.empty}"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="center">