1111
This commit is contained in:
DESKTOP-I3JPKHK\wy
parent
f7d44c9a34
commit
98cdfe7fb6
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@ -518,51 +518,101 @@ class AppUpgradeSimple {
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);
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}
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/// 使用 Overlay 显示 Toast（不依赖 Scaffold）
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void _showOverlayToast(BuildContext context, String message, UpgradeConfig config) {
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if (!context.mounted) {
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debugPrint('Toast消息（context已卸载）: $message');
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return;
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}
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try {
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final overlay = Overlay.of(context);
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// 创建 OverlayEntry
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final overlayEntry = OverlayEntry(
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builder: (context) => _ToastWidget(message: message),
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);
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// 插入到 Overlay
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overlay.insert(overlayEntry);
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// 2秒后自动移除
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Future.delayed(const Duration(seconds: 2), () {
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try {
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overlayEntry.remove();
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} catch (e) {
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// 忽略移除错误
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if (config.enableDebugLog) {
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debugPrint('移除Toast失败: $e');
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}
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}
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});
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} catch (e) {
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debugPrint('显示Toast失败: $e');
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debugPrint('Toast消息: $message');
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}
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}
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/// 尝试使用 ScaffoldMessenger 显示 SnackBar（如果可用）
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void _tryShowSnackBar(BuildContext context, String message, UpgradeConfig config) {
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if (!context.mounted) {
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_showOverlayToast(context, message, config);
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return;
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}
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// 尝试获取 ScaffoldMessenger
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final scaffoldMessenger = ScaffoldMessenger.maybeOf(context);
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if (scaffoldMessenger == null) {
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// 如果没有 ScaffoldMessenger，使用 Overlay Toast
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_showOverlayToast(context, message, config);
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return;
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}
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// 尝试使用根 Navigator 的 context（更安全）
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BuildContext? rootContext;
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try {
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final navigator = Navigator.maybeOf(context, rootNavigator: true);
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if (navigator != null) {
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rootContext = navigator.context;
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}
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} catch (e) {
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// 忽略错误，继续使用原 context
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}
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// 优先使用根 context 的 ScaffoldMessenger
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final messenger =
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rootContext != null && rootContext.mounted ? ScaffoldMessenger.maybeOf(rootContext) : scaffoldMessenger;
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if (messenger == null) {
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_showOverlayToast(context, message, config);
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return;
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}
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// 尝试显示 SnackBar，如果失败则使用 Overlay Toast
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try {
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messenger.showSnackBar(
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SnackBar(
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content: Text(message),
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duration: Duration(seconds: 2),
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),
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);
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} catch (e) {
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// 如果 SnackBar 失败，使用 Overlay Toast
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if (config.enableDebugLog) {
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debugPrint('SnackBar显示失败，使用Overlay Toast: $e');
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}
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_showOverlayToast(context, message, config);
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}
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}
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/// 显示Toast提示
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void _showToast(String message, BuildContext context, [UpgradeConfig? config]) {
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final effectiveConfig = config ?? _config;
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if (effectiveConfig.customToast != null) {
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effectiveConfig.customToast!(message);
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} else {
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// 检查 context 是否有效
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if (!context.mounted) {
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debugPrint('Toast消息（context已卸载）: $message');
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return;
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}
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// 检查是否有 Scaffold 在 widget 树中
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final scaffold = Scaffold.maybeOf(context);
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if (scaffold == null) {
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// 如果没有 Scaffold，使用 debugPrint 作为后备方案
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debugPrint('Toast消息（无Scaffold）: $message');
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return;
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}
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// 使用 maybeOf 安全地获取 ScaffoldMessenger
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final scaffoldMessenger = ScaffoldMessenger.maybeOf(context);
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if (scaffoldMessenger == null) {
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// 如果没有 ScaffoldMessenger，使用 debugPrint 作为后备方案
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debugPrint('Toast消息（无ScaffoldMessenger）: $message');
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return;
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}
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// 即使有 Scaffold 和 ScaffoldMessenger，也可能出现其他问题
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// 使用 try-catch 捕获所有可能的错误
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try {
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scaffoldMessenger.showSnackBar(
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SnackBar(
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content: Text(message),
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duration: Duration(seconds: 2),
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),
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);
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} catch (e) {
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// 捕获所有错误，包括断言错误
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// 在调试模式下，断言错误可能仍然会显示，但不会导致应用崩溃
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debugPrint('显示Toast失败（已使用后备方案）: $message');
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if (effectiveConfig.enableDebugLog) {
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debugPrint('错误详情: $e');
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}
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}
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// 优先尝试使用 SnackBar，如果失败则使用 Overlay Toast
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_tryShowSnackBar(context, message, effectiveConfig);
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}
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}
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@ -2053,3 +2103,68 @@ class _ForceUpgradeDialogState extends State<_ForceUpgradeDialog> with _UpgradeD
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);
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}
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}
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/// 使用 Overlay 显示的 Toast Widget（不依赖 Scaffold）
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class _ToastWidget extends StatelessWidget {
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final String message;
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const _ToastWidget({required this.message});
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@override
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Widget build(BuildContext context) {
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return Positioned(
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top: MediaQuery.of(context).padding.top + 16,
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left: 16,
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right: 16,
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child: Material(
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color: Colors.transparent,
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child: SafeArea(
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child: IgnorePointer(
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child: TweenAnimationBuilder<double>(
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duration: const Duration(milliseconds: 300),
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tween: Tween(begin: 0.0, end: 1.0),
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builder: (context, value, child) {
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return Opacity(
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opacity: value,
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child: Transform.translate(
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offset: Offset(0, -20 * (1 - value)),
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child: child,
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),
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);
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},
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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decoration: BoxDecoration(
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color: Colors.black87,
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borderRadius: BorderRadius.circular(8),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.2),
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blurRadius: 8,
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offset: const Offset(0, 4),
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),
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],
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Flexible(
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child: Text(
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message,
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style: const TextStyle(
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color: Colors.white,
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fontSize: 14,
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),
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textAlign: TextAlign.center,
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),
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),
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],
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),
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),
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),
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),
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),
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),
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);
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}
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}
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