feat: Add pre API 26 support

source/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,6 +1,6 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="432.0dip"
-    android:height="432.0dip"
+    android:width="108dp"
+    android:height="108dp"
     android:viewportWidth="432"
     android:viewportHeight="432">
     <group

source/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

source/core/data/src/main/kotlin/com/xayah/core/data/repository/CloudRepository.kt

@@ -42,6 +42,7 @@ class CloudRepository @Inject constructor(
 
         var isSuccess = true
         val out = mutableListOf<String>()
+        PathUtil.setFilesDirSELinux(context)
 
         runCatching {
             client.upload(src = src, dst = dstDir, onUploading = onUploading)

source/core/data/src/main/kotlin/com/xayah/core/data/repository/DirectoryRepository.kt

@@ -45,9 +45,8 @@ class DirectoryRepository @Inject constructor(
         val customDirList = mutableListOf<DirectoryUpsertEntity>()
         pathList.forEach { pathString ->
             if (pathString.isNotEmpty()) {
-                val path = Paths.get(pathString)
-                val parent = path.parent.pathString
-                val child = path.name
+                val parent = PathUtil.getParentPath(pathString)
+                val child = PathUtil.getFileName(pathString)
 
                 // Custom storage
                 val dir = DirectoryUpsertEntity(

source/core/data/src/main/kotlin/com/xayah/core/data/repository/PackageRepository.kt

@@ -300,7 +300,7 @@ class PackageRepository @Inject constructor(
                         this.storageStats.appBytes = stats.appBytes
                         this.storageStats.cacheBytes = stats.cacheBytes
                         this.storageStats.dataBytes = stats.dataBytes
-                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) this.storageStats.externalCacheBytes = stats.externalCacheBytes
+                        this.storageStats.externalCacheBytes = stats.externalCacheBytes
                     }
                 }
             }

source/core/hiddenapi/src/main/java/android/os/UserHandleHidden.java

@@ -10,4 +10,8 @@ public class UserHandleHidden {
     public static UserHandle of(int userId) {
         throw new RuntimeException("Stub!");
     }
+
+    public int getIdentifier() {
+        throw new RuntimeException("Stub!");
+    }
 }

source/core/model/src/main/kotlin/com/xayah/core/model/util/ModelUtil.kt

@@ -1,5 +1,6 @@
 package com.xayah.core.model.util
 
+import android.os.Build
 import com.xayah.core.model.CompressionType
 import com.xayah.core.model.KillAppOption
 import com.xayah.core.model.LZ4_SUFFIX
@@ -53,7 +54,7 @@ fun SelectionType.Companion.of(name: String?): SelectionType =
     runCatching { SelectionType.valueOf(name!!.uppercase()) }.getOrDefault(SelectionType.DEFAULT)
 
 fun ThemeType.Companion.of(name: String?): ThemeType =
-    runCatching { ThemeType.valueOf(name!!.uppercase()) }.getOrDefault(ThemeType.AUTO)
+    runCatching { ThemeType.valueOf(name!!.uppercase()) }.getOrDefault(if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) ThemeType.AUTO else ThemeType.LIGHT_THEME)
 
 fun SmbAuthMode.Companion.indexOf(index: Int): SmbAuthMode = when (index) {
     1 -> SmbAuthMode.GUEST

source/core/network/src/main/kotlin/com/xayah/core/network/client/FTPClientImpl.kt

@@ -11,6 +11,7 @@ import com.xayah.core.network.util.getExtraEntity
 import com.xayah.core.rootservice.parcelables.PathParcelable
 import com.xayah.core.util.GsonUtil
 import com.xayah.core.util.LogUtil
+import com.xayah.core.util.PathUtil
 import com.xayah.core.util.toPathList
 import com.xayah.core.util.withMainContext
 import com.xayah.libpickyou.parcelables.DirChildrenParcelable
@@ -25,10 +26,7 @@ import java.io.FileInputStream
 import java.io.IOException
 import java.io.InputStream
 import java.io.OutputStream
-import java.nio.file.Paths
 import javax.security.auth.login.LoginException
-import kotlin.io.path.Path
-import kotlin.io.path.pathString
 
 class FTPClientImpl(private val entity: CloudEntity, private val extra: FTPExtra) : CloudClient {
     private var client: FTPClient? = null
@@ -88,7 +86,7 @@ class FTPClientImpl(private val entity: CloudEntity, private val extra: FTPExtra
     }
 
     override fun upload(src: String, dst: String, onUploading: (read: Long, total: Long) -> Unit) = withClient { client ->
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "$dst/$name"
         log { "upload: $src to $dstPath" }
         val srcFile = File(src)
@@ -102,7 +100,7 @@ class FTPClientImpl(private val entity: CloudEntity, private val extra: FTPExtra
     }
 
     override fun download(src: String, dst: String, onDownloading: (written: Long, total: Long) -> Unit) = withClient { client ->
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "$dst/$name"
         log { "download: $src to $dstPath" }
         val dstFile = File(dstPath)
@@ -130,11 +128,10 @@ class FTPClientImpl(private val entity: CloudEntity, private val extra: FTPExtra
     private fun listFile(src: String): FTPFile {
         var srcFile: FTPFile? = null
         withClient { client ->
-            val srcPath = Path(src)
             srcFile = client.mlistFile(src)
             if (srcFile == null) {
-                srcFile = client.listFiles(runCatching { srcPath.parent.pathString }.getOrElse { "." })
-                    .firstOrNull { it.name == srcPath.fileName.pathString }
+                srcFile = client.listFiles(runCatching { PathUtil.getParentPath(src) }.getOrElse { "." })
+                    .firstOrNull { it.name == PathUtil.getFileName(src) }
             }
         }
         if (srcFile != null) {
@@ -253,7 +250,7 @@ class FTPClientImpl(private val entity: CloudEntity, private val extra: FTPExtra
         connect()
         PickYouLauncher.apply {
             val prefix = "${context.getString(R.string.cloud)}:"
-            sTraverseBackend = { listFiles(it.pathString.replaceFirst(prefix, "")) }
+            sTraverseBackend = { listFiles(it.replaceFirst(prefix, "")) }
             sMkdirsBackend = { parent, child ->
                 runCatching { mkdirRecursively(handleOriginalPath("$parent/$child")) }.isSuccess
             }

source/core/network/src/main/kotlin/com/xayah/core/network/client/SFTPClientImpl.kt

@@ -11,6 +11,7 @@ import com.xayah.core.network.util.getExtraEntity
 import com.xayah.core.rootservice.parcelables.PathParcelable
 import com.xayah.core.util.GsonUtil
 import com.xayah.core.util.LogUtil
+import com.xayah.core.util.PathUtil
 import com.xayah.core.util.toPathList
 import com.xayah.core.util.withMainContext
 import com.xayah.libpickyou.parcelables.DirChildrenParcelable
@@ -27,8 +28,6 @@ import net.schmizz.sshj.userauth.password.PasswordFinder
 import net.schmizz.sshj.userauth.password.Resource
 import java.io.File
 import java.io.FileOutputStream
-import java.nio.file.Paths
-import kotlin.io.path.pathString
 
 
 class SFTPClientImpl(private val entity: CloudEntity, private val extra: SFTPExtra) : CloudClient {
@@ -109,7 +108,7 @@ class SFTPClientImpl(private val entity: CloudEntity, private val extra: SFTPExt
     }
 
     override fun upload(src: String, dst: String, onUploading: (read: Long, total: Long) -> Unit) {
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "$dst/$name"
         log { "upload: $src to $dstPath" }
         val dstFile = openFile(dstPath)
@@ -126,7 +125,7 @@ class SFTPClientImpl(private val entity: CloudEntity, private val extra: SFTPExt
     }
 
     override fun download(src: String, dst: String, onDownloading: (written: Long, total: Long) -> Unit) {
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "${dst}/$name"
         log { "download: $src to $dstPath" }
         val dstFile = File(dstPath)
@@ -221,7 +220,7 @@ class SFTPClientImpl(private val entity: CloudEntity, private val extra: SFTPExt
         connect()
         PickYouLauncher.apply {
             val prefix = "${context.getString(R.string.cloud)}:"
-            sTraverseBackend = { listFiles(it.pathString.replaceFirst(prefix, ".")) }
+            sTraverseBackend = { listFiles(it.replaceFirst(prefix, ".")) }
             sMkdirsBackend = { parent, child ->
                 runCatching { mkdirRecursively(handleOriginalPath("$parent/$child")) }.isSuccess
             }

source/core/network/src/main/kotlin/com/xayah/core/network/client/SMBClientImpl.kt

@@ -30,6 +30,7 @@ import com.xayah.core.network.util.getExtraEntity
 import com.xayah.core.rootservice.parcelables.PathParcelable
 import com.xayah.core.util.GsonUtil
 import com.xayah.core.util.LogUtil
+import com.xayah.core.util.PathUtil
 import com.xayah.core.util.SymbolUtil
 import com.xayah.core.util.toPathList
 import com.xayah.core.util.withLog
@@ -41,8 +42,6 @@ import com.xayah.libpickyou.ui.model.PickerType
 import java.io.File
 import java.io.FileInputStream
 import java.io.IOException
-import java.nio.file.Paths
-import kotlin.io.path.pathString
 
 
 class SMBClientImpl(private val entity: CloudEntity, private val extra: SMBExtra) : CloudClient {
@@ -200,7 +199,7 @@ class SMBClientImpl(private val entity: CloudEntity, private val extra: SMBExtra
     }
 
     override fun upload(src: String, dst: String, onUploading: (read: Long, total: Long) -> Unit) = run {
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "$dst/$name"
         log { "upload: $src to $dstPath" }
         val dstFile = openFile(dstPath)
@@ -216,7 +215,7 @@ class SMBClientImpl(private val entity: CloudEntity, private val extra: SMBExtra
     }
 
     override fun download(src: String, dst: String, onDownloading: (written: Long, total: Long) -> Unit) = run {
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "$dst/$name"
         log { "download: $src to $dstPath" }
         val dstOutputStream = File(dstPath).outputStream()
@@ -343,7 +342,7 @@ class SMBClientImpl(private val entity: CloudEntity, private val extra: SMBExtra
         connect()
         PickYouLauncher.apply {
             val prefix = "${context.getString(R.string.cloud)}:"
-            sTraverseBackend = { listFiles(it.pathString.replaceFirst(prefix, "")) }
+            sTraverseBackend = { listFiles(it.replaceFirst(prefix, "")) }
             sMkdirsBackend = { parent, child ->
                 val (_, target) = handleOriginalPath("$parent/$child")
                 runCatching { mkdirRecursively(target) }.isSuccess

source/core/network/src/main/kotlin/com/xayah/core/network/client/WebDAVClientImpl.kt

@@ -6,6 +6,7 @@ import com.xayah.core.model.database.CloudEntity
 import com.xayah.core.network.R
 import com.xayah.core.rootservice.parcelables.PathParcelable
 import com.xayah.core.util.LogUtil
+import com.xayah.core.util.PathUtil
 import com.xayah.core.util.toPathList
 import com.xayah.core.util.withMainContext
 import com.xayah.libpickyou.parcelables.DirChildrenParcelable
@@ -15,9 +16,7 @@ import com.xayah.libpickyou.ui.model.PickerType
 import com.xayah.libsardine.impl.OkHttpSardine
 import okhttp3.OkHttpClient
 import java.io.File
-import java.nio.file.Paths
 import java.util.concurrent.TimeUnit
-import kotlin.io.path.pathString
 
 class WebDAVClientImpl(private val entity: CloudEntity) : CloudClient {
     private var client: OkHttpSardine? = null
@@ -72,15 +71,15 @@ class WebDAVClientImpl(private val entity: CloudEntity) : CloudClient {
     }
 
     override fun upload(src: String, dst: String, onUploading: (read: Long, total: Long) -> Unit) = withClient { client ->
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "${getPath(dst)}/$name"
         log { "upload: $src to $dstPath" }
         val srcFile = File(src)
         client.put(dstPath, srcFile, null)
     }
 
     override fun download(src: String, dst: String, onDownloading: (written: Long, total: Long) -> Unit) = withClient { client ->
-        val name = Paths.get(src).fileName
+        val name = PathUtil.getFileName(src)
         val dstPath = "${dst}/$name"
         log { "download: ${getPath(src)} to $dstPath" }
         val dstOutputStream = File(dstPath).outputStream()
@@ -191,7 +190,7 @@ class WebDAVClientImpl(private val entity: CloudEntity) : CloudClient {
         connect()
         PickYouLauncher.apply {
             val prefix = "${context.getString(R.string.cloud)}:"
-            sTraverseBackend = { listFiles(it.pathString.replaceFirst(prefix, "")) }
+            sTraverseBackend = { listFiles(it.replaceFirst(prefix, "")) }
             sMkdirsBackend = { parent, child ->
                 runCatching { mkdirRecursively(handleOriginalPath("$parent/$child")) }.isSuccess
             }

source/core/rootservice/src/main/aidl/com/xayah/core/rootservice/IRemoteRootService.aidl

@@ -1,6 +1,7 @@
 package com.xayah.core.rootservice;
 
 import com.xayah.core.rootservice.parcelables.StatFsParcelable;
+import com.xayah.core.rootservice.parcelables.StorageStatsParcelable;
 
 interface IRemoteRootService {
     StatFsParcelable readStatFs(String path);
@@ -28,7 +29,7 @@ interface IRemoteRootService {
     boolean queryInstalled(String packageName, int userId);
     int getPackageUid(String packageName, int userId);
     UserHandle getUserHandle(int userId);
-    StorageStats queryStatsForPackage(in PackageInfo packageInfo, in UserHandle user);
+    StorageStatsParcelable queryStatsForPackage(in PackageInfo packageInfo, in UserHandle user);
     List<UserInfo> getUsers();
     ParcelFileDescriptor walkFileTree(String path);
     PackageInfo getPackageArchiveInfo(String path);

source/core/rootservice/src/main/aidl/com/xayah/core/rootservice/parcelables/StorageStatsParcelable.aidl

@@ -0,0 +1,2 @@
+package com.xayah.core.rootservice.parcelables;
+parcelable StorageStatsParcelable;