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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:share_plus/share_plus.dart';
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import 'package:path/path.dart' as p;
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import '../database/siab_database.dart';
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import '../services/ble_service.dart';
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/// Screen that shows the current timbang (weight) value on a scale-style
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/// display matching the SIAB scale design (dark frame, glowing red digits).
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/// When connected, title shows "TIMBANGAN [label] SIAB" from registered device.
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class TimbangScreen extends StatelessWidget {
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const TimbangScreen({super.key});
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: Colors.black,
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body: SafeArea(
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child: Consumer<BLEService>(
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builder: (context, ble, _) {
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final weightKg = ble.lastWeightKg;
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final displayValue = weightKg != null
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? weightKg.toStringAsFixed(1)
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: '0.0';
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final isConnected = ble.isConnected;
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final address = ble.deviceAddress;
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return Center(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// Outer frame with decorative corners
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Stack(
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children: [
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// Outer dark grey/blue frame
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Container(
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padding: const EdgeInsets.all(4),
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decoration: BoxDecoration(
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color: const Color(0xFF2A2A3A), // Dark grey/blue
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borderRadius: BorderRadius.circular(16),
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),
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child: Stack(
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children: [
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// Inner border (lighter grey/blue line)
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Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(12),
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border: Border.all(
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color: const Color(0xFF4A4A5A),
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width: 2,
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),
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),
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child: // Deep black display area
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Container(
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padding: const EdgeInsets.symmetric(
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vertical: 40,
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horizontal: 24,
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),
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decoration: BoxDecoration(
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color: Colors.black,
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borderRadius: BorderRadius.circular(10),
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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// Large glowing red weight value
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Text(
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displayValue,
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style: TextStyle(
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fontSize: 72,
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fontWeight: FontWeight.w400,
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color: Colors.red.shade400,
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fontFamily: 'monospace',
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fontFeatures: const [
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FontFeature.tabularFigures(),
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],
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shadows: [
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Shadow(
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color: Colors.red.shade400
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.withOpacity(0.8),
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blurRadius: 20,
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),
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Shadow(
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color: Colors.red.shade400
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.withOpacity(0.5),
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blurRadius: 40,
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),
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],
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),
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),
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const SizedBox(height: 8),
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// Smaller glowing red "kg" unit
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Text(
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'kg',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.w400,
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color: Colors.red.shade400,
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fontFamily: 'monospace',
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shadows: [
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Shadow(
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color: Colors.red.shade400
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.withOpacity(0.8),
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blurRadius: 15,
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),
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Shadow(
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color: Colors.red.shade400
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.withOpacity(0.5),
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blurRadius: 30,
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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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// Corner decorative elements (rivets/screws)
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Positioned(
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top: 2,
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left: 2,
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child: _CornerRivet(),
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),
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Positioned(
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top: 2,
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right: 2,
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child: _CornerRivet(),
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),
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Positioned(
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bottom: 2,
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left: 2,
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child: _CornerRivet(),
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),
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Positioned(
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bottom: 2,
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right: 2,
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child: _CornerRivet(),
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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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const SizedBox(height: 24),
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// "TIMBANGAN [label] SIAB" when connected, else "TIMBANGAN SIAB"
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FutureBuilder<String>(
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future: address != null
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? SiabDatabase().getByUuid(address).then((d) => d?.label ?? '')
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: Future.value(''),
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builder: (context, snapshot) {
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final label = snapshot.data?.trim() ?? '';
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final title = isConnected && label.isNotEmpty
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? 'TIMBANGAN $label SIAB'
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: 'TIMBANGAN SIAB';
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return Text(
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title,
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style: TextStyle(
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fontSize: 16,
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color: Colors.grey.shade400,
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fontWeight: FontWeight.w300,
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letterSpacing: 1.2,
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),
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);
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},
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),
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const SizedBox(height: 16),
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// Connection status + actions
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if (!isConnected)
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Text(
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'Connect scale in Devices tab',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey.shade600,
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),
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)
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else ...[
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.bluetooth_connected,
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size: 20,
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color: Colors.green.shade300,
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),
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const SizedBox(width: 12),
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TextButton.icon(
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onPressed: () async {
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await ble.disconnect();
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},
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icon: const Icon(Icons.power_settings_new, size: 18),
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label: const Text('Disconnect'),
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style: TextButton.styleFrom(
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foregroundColor: Colors.red.shade300,
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),
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),
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],
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),
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const SizedBox(height: 12),
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ElevatedButton.icon(
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onPressed: ble.hasStableWeight
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? () async {
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final ok = await ble.saveStableMeasurement();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(ok
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? 'Stable weight saved to file'
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: 'No stable value to save yet'),
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),
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);
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}
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: null,
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icon: const Icon(Icons.save),
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label: const Text('Save stable value'),
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),
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const SizedBox(height: 8),
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OutlinedButton.icon(
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onPressed: () async {
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try {
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final file = await ble.getTodayMeasurementFile();
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final exists = await file.exists();
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if (!exists || await file.length() == 0) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text(
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'No measurements file for today yet. Save a value first.',
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),
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),
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);
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return;
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}
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await Share.shareXFiles(
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[
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XFile(
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file.path,
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mimeType: 'text/csv',
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name: p.basename(file.path),
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),
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],
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subject: 'SIAB Laporan hasil Timbang ',
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text:
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'SIAB Laporan hasil Timbang harian.',
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);
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} catch (e) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('gagal mengirim file: $e'),
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),
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);
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}
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},
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icon: const Icon(Icons.email),
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label: const Text('email terkirim'),
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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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/// Decorative corner rivet/screw element
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class _CornerRivet extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return Container(
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width: 8,
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height: 8,
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decoration: BoxDecoration(
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color: Colors.grey.shade500,
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shape: BoxShape.circle,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.3),
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blurRadius: 2,
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offset: const Offset(0, 1),
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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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