扫码无权限优化,司机预约多弹窗
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@@ -29,27 +29,77 @@ class QrCodePage extends GetView<QrCodeController> {
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),
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],
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),
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body: Stack(
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alignment: Alignment.center,
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children: [
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// 1. 使用 MobileScanner 作为扫描视图
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MobileScanner(
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controller: controller.scannerController,
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onDetect: controller.onDetect,
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// 您可以自定义扫描框的样式
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scanWindow: Rect.fromCenter(
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center: Offset(
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MediaQuery.of(context).size.width / 2,
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MediaQuery.of(context).size.height / 2 - 50,
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),
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width: 250,
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height: 250,
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body: Obx(() { // 1. 使用 Obx 包裹整个 body
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// 根据权限状态来决定显示什么
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if (controller.hasPermission.value) {
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// 如果有权限,显示扫描器
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return _buildScannerView(context);
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} else {
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// 如果没有权限,显示引导界面
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return _buildPermissionDeniedView();
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}
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}),
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);
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}
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Widget _buildScannerView(BuildContext context){
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if (!controller.animationController.isAnimating) {
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controller.animationController.repeat(reverse: false);
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}
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return Stack(
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alignment: Alignment.center,
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children: [
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// 使用 MobileScanner 作为扫描视图
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MobileScanner(
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controller: controller.scannerController,
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onDetect: controller.onDetect,
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// 您可以自定义扫描框的样式
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scanWindow: Rect.fromCenter(
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center: Offset(
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MediaQuery.of(context).size.width / 2,
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MediaQuery.of(context).size.height / 2 - 50,
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),
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width: 250,
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height: 250,
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),
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),
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// 扫描动画和覆盖层
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_buildScannerOverlay(context),
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// 底部的功能按钮
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Positioned(bottom: 80, left: 0, right: 0, child: _buildActionButtons()),
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],
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);
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}
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Widget _buildPermissionDeniedView() {
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// 确保动画是停止的
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if (controller.animationController.isAnimating) {
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controller.animationController.stop();
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}
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return Container(
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color: Colors.black,
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alignment: Alignment.center,
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padding: const EdgeInsets.all(24.0),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(Icons.no_photography, color: Colors.white70, size: 64),
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const SizedBox(height: 16),
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const Text(
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'需要相机权限',
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style: TextStyle(color: Colors.white, fontSize: 18, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 8),
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const Text(
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'请授予相机权限以使用扫码功能。',
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style: TextStyle(color: Colors.white70, fontSize: 14),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 24),
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ElevatedButton(
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onPressed: controller.requestPermission, // 点击按钮重新请求权限
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child: const Text('授予权限'),
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),
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// 扫描动画和覆盖层
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_buildScannerOverlay(context),
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// 底部的功能按钮
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Positioned(bottom: 80, left: 0, right: 0, child: _buildActionButtons()),
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],
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),
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);
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