isekai_wiki_app/lib/utils/dialog.dart

import 'dart:async';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter_web_browser/flutter_web_browser.dart';
import 'package:get/get.dart';
import 'package:isekai_wiki/global.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:url_launcher/url_launcher_string.dart';

import '../styles.dart';

Future<void> alert(BuildContext context, String content, {String? title}) {
  var c = Completer();

  showCupertinoDialog(
    context: context,
    builder: (context) => CupertinoAlertDialog(
      title: title != null ? Text(title) : null,
      content: Text(content),
      actions: <Widget>[
        CupertinoDialogAction(
          isDefaultAction: true,
          onPressed: () {
            c.complete();
            Navigator.of(context).pop();
          },
          child: const Text("好"),
        ),
      ],
    ),
  );

  return c.future;
}

Future<bool> confirm(BuildContext context, String content,
    {String? title, String? positiveText, String? negativeText, bool isDanger = false}) {
  var c = Completer<bool>();

  positiveText ??= "好";
  negativeText ??= "取消";

  showCupertinoDialog(
    context: context,
    builder: (context) => CupertinoAlertDialog(
      title: title != null ? Text(title) : null,
      content: Text(content),
      actions: <Widget>[
        CupertinoDialogAction(
          onPressed: () {
            Navigator.of(context).pop();
            c.complete(false);
          },
          child: Text(negativeText!),
        ),
        CupertinoDialogAction(
          isDestructiveAction: isDanger,
          isDefaultAction: !isDanger,
          onPressed: () {
            Navigator.of(context).pop();
            c.complete(true);
          },
          child: Text(positiveText!),
        ),
      ],
    ),
  );

  return c.future;
}

Future<void> openUrl(String url, {bool inApp = false}) async {
  if (!kIsWeb && inApp) {
    // APP部分
    if (GetPlatform.isAndroid || GetPlatform.isIOS) {
      // 安卓和IOS使用应用内浏览器打开
      await FlutterWebBrowser.openWebPage(
          url: url,
          customTabsOptions: const CustomTabsOptions(
            defaultColorSchemeParams: CustomTabsColorSchemeParams(
              toolbarColor: Styles.websiteNavbarColor,
            ),
            shareState: CustomTabsShareState.off,
            showTitle: true,
          ),
          safariVCOptions: const SafariViewControllerOptions(
            barCollapsingEnabled: true,
          ));
      return;
    }
  }
  // 其他平台直接调用浏览器打开
  launchUrlString(url, mode: LaunchMode.externalApplication);
}

Future<void> showLoading(BuildContext context,
    {String? title, required VoidFutureCallback callback}) async {
  title ??= "加载中";

  showCupertinoDialog(
    context: context,
    builder: (context) => CupertinoAlertDialog(
      title: Row(
        children: [
          const CupertinoActivityIndicator(radius: 14),
          const SizedBox(width: 20),
          Text(title!),
        ],
      ),
      actions: const [],
    ),
  );
  try {
    var ret = await callback.call();
    Navigator.of(Get.context!).pop();
    return ret;
  } catch (_) {
    Navigator.of(Get.context!).pop();
    rethrow;
  }
}