Dialog refactoring

app/src/main/java/eu/faircode/email/FragmentDialogDoze.java

@@ -0,0 +1,53 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    FairEmail is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2023 by Marcel Bokhorst (M66B)
+*/
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.provider.Settings;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+
+public class FragmentDialogDoze extends FragmentDialogBase {
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        return new AlertDialog.Builder(getContext())
+                .setIcon(R.drawable.twotone_info_24)
+                .setTitle(R.string.title_setup_doze)
+                .setMessage(R.string.title_setup_doze_instructions)
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        try {
+                            startActivity(new Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS));
+                        } catch (Throwable ex) {
+                            Log.e(ex);
+                        }
+                    }
+                })
+                .setNegativeButton(android.R.string.cancel, null)
+                .create();
+    }
+}