Android: Update game list on setTitle()

This fixes a bug where newly installed game does not appear in the game
list after quitting the first game run.

android/app/src/main/java/io/github/kichikuou/xsystem35/GameActivity.kt

@@ -68,6 +68,7 @@ class GameActivity : SDLActivity() {
         if (str.isNullOrEmpty())
             return
         File(gameRoot, Launcher.TITLE_FILE).writeText(str)
+        Launcher.updateGameList()
     }
 
     // These functions are called in the SDL thread by JNI.

android/app/src/main/java/io/github/kichikuou/xsystem35/Launcher.kt

@@ -30,6 +30,7 @@ import java.util.zip.ZipInputStream
 private var gLauncher: Launcher? = null
 
 interface LauncherObserver {
+    fun onGameListChange()
     fun onInstallProgress(path: String)
     fun onInstallSuccess(path: File)
     fun onInstallFailure(msgId: Int)
@@ -50,6 +51,10 @@ class Launcher private constructor(private val rootDir: File) {
             }
             return gLauncher!!
         }
+
+        fun updateGameList() {
+            gLauncher?.updateGameList()
+        }
     }
 
     data class Entry(val path: File, val title: String)
@@ -61,25 +66,7 @@ class Launcher private constructor(private val rootDir: File) {
         private set
 
     init {
-        var saveDirFound = false
-        for (path in rootDir.listFiles()) {
-            if (!path.isDirectory)
-                continue
-            if (path.name == "save") {
-                saveDirFound = true
-                continue
-            }
-            try {
-                val title = File(path, TITLE_FILE).readText()
-                games.add(Entry(path, title))
-            } catch (e: IOException) {
-                // Incomplete game installation. Delete it.
-                path.deleteRecursively()
-            }
-        }
-        if (!saveDirFound) {
-            File(rootDir, "save").mkdir()
-        }
+        updateGameList()
     }
 
     fun install(input: InputStream) {
@@ -112,6 +99,29 @@ class Launcher private constructor(private val rootDir: File) {
     fun uninstall(id: Int) {
         games[id].path.deleteRecursively()
         games.removeAt(id)
+        observer?.onGameListChange()
+    }
+
+    private fun updateGameList() {
+        var saveDirFound = false
+        for (path in rootDir.listFiles()) {
+            if (!path.isDirectory)
+                continue
+            if (path.name == "save") {
+                saveDirFound = true
+                continue
+            }
+            try {
+                val title = File(path, TITLE_FILE).readText()
+                games.add(Entry(path, title))
+            } catch (e: IOException) {
+                // Incomplete game installation. Delete it.
+                path.deleteRecursively()
+            }
+        }
+        if (!saveDirFound) {
+            File(rootDir, "save").mkdir()
+        }
     }
 
     private fun createDirForGame(): File {

android/app/src/main/java/io/github/kichikuou/xsystem35/LauncherActivity.kt

@@ -28,7 +28,6 @@ import java.io.*
 
 class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, LauncherObserver {
     private lateinit var launcher: Launcher
-    private lateinit var adapter: ArrayAdapter<String>
     private var progressDialog: ProgressDialogFragment? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -40,10 +39,7 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
             showProgressDialog()
         }
 
-        val items = launcher.titles.toMutableList()
-        items.add(getString(R.string.install_from_zip))
-        adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, items)
-        listAdapter = adapter
+        onGameListChange()
         listView.onItemLongClickListener = this
     }
 
@@ -83,6 +79,12 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
         launcher.install(input)
     }
 
+    override fun onGameListChange() {
+        val items = launcher.titles.toMutableList()
+        items.add(getString(R.string.install_from_zip))
+        listAdapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, items)
+    }
+
     override fun onInstallProgress(path: String) {
         progressDialog?.setProgress(getString(R.string.install_progress, path))
     }
@@ -106,7 +108,6 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
 
     private fun uninstall(id: Int) {
         launcher.uninstall(id)
-        adapter.remove(adapter.getItem(id))
     }
 
     private fun showProgressDialog() {