Fix update check

app/src/github/java/io/nekohasekai/sfa/vendor/GitHubUpdateChecker.kt

@@ -27,14 +27,6 @@ class GitHubUpdateChecker : Closeable {
     private val json = Json { ignoreUnknownKeys = true }
 
     fun checkUpdate(track: UpdateTrack): UpdateInfo? {
-        return getLatestUpdate(track, checkVersion = true)
-    }
-
-    fun forceGetLatestUpdate(track: UpdateTrack): UpdateInfo? {
-        return getLatestUpdate(track, checkVersion = false)
-    }
-
-    private fun getLatestUpdate(track: UpdateTrack, checkVersion: Boolean): UpdateInfo? {
         val includePrerelease = track == UpdateTrack.BETA
         val release = getLatestRelease(includePrerelease) ?: return null
 
@@ -44,7 +36,7 @@ class GitHubUpdateChecker : Closeable {
 
         val metadata = downloadMetadata(release)!!
 
-        if (checkVersion && metadata.versionCode <= BuildConfig.VERSION_CODE) {
+        if (metadata.versionCode <= BuildConfig.VERSION_CODE) {
             return null
         }
 

app/src/github/java/io/nekohasekai/sfa/vendor/RootInstaller.kt

@@ -2,7 +2,9 @@ package io.nekohasekai.sfa.vendor
 
 import android.content.Intent
 import android.content.ServiceConnection
+import android.os.Handler
 import android.os.IBinder
+import android.os.Looper
 import android.os.ParcelFileDescriptor
 import com.topjohnwu.superuser.ipc.RootService
 import io.nekohasekai.sfa.Application
@@ -77,12 +79,14 @@ object RootInstaller {
         }
     }
 
-    private data class RootServiceHandle(
+    private class RootServiceHandle(
         val connection: ServiceConnection,
         val service: IRootService
     ) : java.io.Closeable {
         override fun close() {
-            RootService.unbind(connection)
+            Handler(Looper.getMainLooper()).post {
+                RootService.unbind(connection)
+            }
         }
     }
 }