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374 lines
12 KiB
374 lines
12 KiB
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart' as fbp;
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import '../controllers/ble_controller.dart';
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class BleView extends GetView<BleController> {
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const BleView({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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final bool isDarkMode = Theme.of(context).brightness == Brightness.dark;
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return Scaffold(
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backgroundColor: isDarkMode ? Colors.black : Colors.white,
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appBar: AppBar(
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title: Text(
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'bleScanTitle'.tr,
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style: TextStyle(
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color: isDarkMode ? Colors.white : Colors.black,
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fontSize: 18.sp,
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fontWeight: FontWeight.bold,
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),
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),
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backgroundColor: isDarkMode ? Colors.grey[900] : Colors.white,
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elevation: 0,
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iconTheme: IconThemeData(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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actions: [
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// 合规（场景 1/2）：用户拒绝过蓝牙/定位权限且仍在 48h 冷却期内时，
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// 扫描按钮置灰——既不能再弹权限框，也不该让用户点了毫无反应。
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Obx(() {
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// 读一下 hasPermissions 让 Obx 建立订阅：isPermissionCoolingDown
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// 读的是 GetStorage 不是 Rx，单靠它不会触发重建
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controller.hasPermissions.value;
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final blocked = controller.isPermissionCoolingDown;
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return IconButton(
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onPressed: blocked
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? null
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: (controller.isScanning.value
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? controller.stopScan
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: controller.startScan),
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icon: Icon(
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controller.isScanning.value ? Icons.stop : Icons.refresh,
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color: blocked
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? Colors.grey
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: (controller.isScanning.value
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? Colors.red
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: (isDarkMode ? Colors.white : Colors.black)),
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),
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);
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}),
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],
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),
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body: SafeArea(
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child: Column(
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children: [
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// 状态栏
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_buildStatusBar(isDarkMode),
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// 连接的设备信息
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_buildConnectedDevice(isDarkMode),
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// 设备列表
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Expanded(
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child: _buildDeviceList(isDarkMode),
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),
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],
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),
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),
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floatingActionButton: Obx(() {
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controller.hasPermissions.value; // 同上：建立订阅，权限申请结束后重建
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final blocked = controller.isPermissionCoolingDown;
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return FloatingActionButton(
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onPressed: blocked
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? null
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: (controller.isScanning.value
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? controller.stopScan
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: controller.startScan),
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backgroundColor: blocked
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? Colors.grey
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: (controller.isScanning.value ? Colors.red : Colors.blue),
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child: Icon(
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controller.isScanning.value
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? Icons.stop
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: Icons.bluetooth_searching,
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color: Colors.white,
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),
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);
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}),
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);
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}
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// 状态栏
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Widget _buildStatusBar(bool isDarkMode) {
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return Obx(() => Container(
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width: double.infinity,
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padding: EdgeInsets.all(16.w),
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margin: EdgeInsets.all(16.w),
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decoration: BoxDecoration(
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color: isDarkMode ? Colors.grey[800] : Colors.grey[100],
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borderRadius: BorderRadius.circular(12.r),
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),
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child: Column(
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children: [
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Row(
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children: [
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Icon(
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controller.isBluetoothOn.value
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? Icons.bluetooth
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: Icons.bluetooth_disabled,
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color: controller.isBluetoothOn.value
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? Colors.blue
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: Colors.red,
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size: 24.w,
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),
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SizedBox(width: 8.w),
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Text(
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controller.isBluetoothOn.value ? 'bluetoothOn'.tr : '蓝牙已关闭',
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style: TextStyle(
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color: isDarkMode ? Colors.white : Colors.black,
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fontSize: 16.sp,
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fontWeight: FontWeight.w500,
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),
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),
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Spacer(),
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if (controller.isScanning.value)
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SizedBox(
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width: 20.w,
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height: 20.w,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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valueColor: AlwaysStoppedAnimation<Color>(Colors.blue),
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),
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),
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],
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),
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if (controller.errorMessage.value.isNotEmpty) ...[
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SizedBox(height: 8.h),
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Text(
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controller.errorMessage.value,
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style: TextStyle(
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color: Colors.red,
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fontSize: 14.sp,
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),
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),
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],
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if (controller.isScanning.value) ...[
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SizedBox(height: 8.h),
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Text(
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'bleScanning'.tr,
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style: TextStyle(
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color: Colors.blue,
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fontSize: 14.sp,
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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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// 已连接设备信息
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Widget _buildConnectedDevice(bool isDarkMode) {
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return Obx(() {
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if (controller.connectedDevice.value == null) {
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return SizedBox.shrink();
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}
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final device = controller.connectedDevice.value!;
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return Container(
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width: double.infinity,
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padding: EdgeInsets.all(16.w),
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margin: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
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decoration: BoxDecoration(
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color: Colors.green.withOpacity(0.1),
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border: Border.all(color: Colors.green, width: 1),
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borderRadius: BorderRadius.circular(12.r),
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),
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child: Row(
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children: [
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Icon(
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Icons.bluetooth_connected,
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color: Colors.green,
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size: 24.w,
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),
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SizedBox(width: 12.w),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'bleConnectedDevices'.tr,
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style: TextStyle(
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color: Colors.green,
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fontSize: 12.sp,
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fontWeight: FontWeight.w500,
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),
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),
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Text(
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device.platformName.isNotEmpty
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? device.platformName
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: 'bleUnknownDevice'.tr,
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style: TextStyle(
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color: isDarkMode ? Colors.white : Colors.black,
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fontSize: 16.sp,
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fontWeight: FontWeight.bold,
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),
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),
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Text(
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device.remoteId.toString(),
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style: TextStyle(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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fontSize: 12.sp,
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),
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),
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],
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),
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),
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IconButton(
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onPressed: controller.disconnectDevice,
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icon: Icon(
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Icons.close,
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color: Colors.red,
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size: 20.w,
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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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// 设备列表
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Widget _buildDeviceList(bool isDarkMode) {
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return Obx(() {
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if (controller.scanResults.isEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.bluetooth_searching,
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size: 64.w,
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color: isDarkMode ? Colors.white54 : Colors.black54,
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),
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SizedBox(height: 16.h),
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Text(
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controller.isScanning.value ? '正在搜索设备...' : 'bleTapToScan'.tr,
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style: TextStyle(
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color: isDarkMode ? Colors.white54 : Colors.black54,
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fontSize: 16.sp,
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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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return ListView.builder(
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padding: EdgeInsets.symmetric(horizontal: 16.w),
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itemCount: controller.scanResults.length,
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itemBuilder: (context, index) {
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final result = controller.scanResults[index];
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return _buildDeviceItem(result, isDarkMode);
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},
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);
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});
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}
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// 设备项
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Widget _buildDeviceItem(fbp.ScanResult result, bool isDarkMode) {
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final deviceName = controller.getDeviceName(result);
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final isConnected =
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controller.connectedDevice.value?.remoteId == result.device.remoteId;
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return Container(
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margin: EdgeInsets.only(bottom: 12.h),
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decoration: BoxDecoration(
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color: isDarkMode ? Colors.grey[800] : Colors.white,
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borderRadius: BorderRadius.circular(12.r),
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border: Border.all(
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color: isConnected
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? Colors.green
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: (isDarkMode ? Colors.grey[700]! : Colors.grey[300]!),
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width: isConnected ? 2 : 1,
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),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 8,
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offset: Offset(0, 2),
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),
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],
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),
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child: ListTile(
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contentPadding: EdgeInsets.all(16.w),
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leading: Container(
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width: 48.w,
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height: 48.w,
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decoration: BoxDecoration(
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color: isConnected
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? Colors.green.withOpacity(0.1)
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: Colors.blue.withOpacity(0.1),
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borderRadius: BorderRadius.circular(24.r),
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),
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child: Icon(
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isConnected ? Icons.bluetooth_connected : Icons.bluetooth,
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color: isConnected ? Colors.green : Colors.blue,
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size: 24.w,
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),
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),
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title: Text(
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deviceName,
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style: TextStyle(
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color: isDarkMode ? Colors.white : Colors.black,
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fontSize: 16.sp,
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fontWeight: FontWeight.bold,
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),
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),
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subtitle: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SizedBox(height: 4.h),
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Text(
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result.device.remoteId.toString(),
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style: TextStyle(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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fontSize: 12.sp,
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),
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),
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SizedBox(height: 4.h),
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Row(
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children: [
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Icon(
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controller.getSignalStrengthIcon(result.rssi),
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size: 16.w,
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color: isDarkMode ? Colors.white70 : Colors.black54,
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),
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SizedBox(width: 4.w),
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Text(
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'${result.rssi} dBm (${controller.getSignalStrengthText(result.rssi)})',
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style: TextStyle(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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fontSize: 12.sp,
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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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trailing: isConnected
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? Icon(
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Icons.check_circle,
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color: Colors.green,
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size: 24.w,
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)
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: IconButton(
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onPressed: () => controller.connectToDevice(result.device),
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icon: Icon(
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Icons.connect_without_contact,
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color: Colors.blue,
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size: 24.w,
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),
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),
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onTap: isConnected
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? null
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: () => controller.connectToDevice(result.device),
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),
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);
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}
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}
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