Convert newpipe/ExitActivity to kotlin

Author: Yevhen Babiichuk (DustDFG)

app/src/main/java/org/schabi/newpipe/ExitActivity.java

@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: 2016-2026 NewPipe contributors <https://newpipe.net>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package org.schabi.newpipe
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import org.schabi.newpipe.util.NavigationHelper
+class ExitActivity : Activity() {
+    @SuppressLint("NewApi")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        finishAndRemoveTask()
+
+        NavigationHelper.restartApp(this)
+    }
+
+    companion object {
+        @JvmStatic
+        fun exitAndRemoveFromRecentApps(activity: Activity) {
+            val intent = Intent(activity, ExitActivity::class.java)
+
+            intent.addFlags(
+                Intent.FLAG_ACTIVITY_NEW_TASK
+                    or Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
+                    or Intent.FLAG_ACTIVITY_CLEAR_TASK
+                    or Intent.FLAG_ACTIVITY_NO_ANIMATION
+            )
+
+            activity.startActivity(intent)
+        }
+    }
+}