Flutter for OpenHarmony PUBG游戏助手App实战：灵敏度计算器实现
灵敏度是影响游戏表现的关键因素。不同的鼠标DPI和游戏内灵敏度组合会产生不同的有效DPI（eDPI）。今天我们来实现一个实用的灵敏度计算器。
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灵敏度是影响游戏表现的关键因素。不同的鼠标DPI和游戏内灵敏度组合会产生不同的有效DPI（eDPI）。今天我们来实现一个实用的灵敏度计算器。
灵敏度计算原理
有效DPI的计算公式很简单：
eDPI = 鼠标DPI × 游戏内灵敏度 / 100
比如鼠标DPI为800，游戏内灵敏度为50，那么eDPI就是800 × 50 / 100 = 400。
对于开镜灵敏度，计算方式相同。这个计算器的目的是帮助玩家快速计算和对比不同的灵敏度组合。
计算器页面结构
class SensitivityCalculatorPage extends StatefulWidget {
const SensitivityCalculatorPage({Key? key}) : super(key: key);
State<SensitivityCalculatorPage> createState() =>
_SensitivityCalculatorPageState();
}
class _SensitivityCalculatorPageState extends State<SensitivityCalculatorPage> {
double _dpi = 800;
double _sensitivity = 50;
double _scopeSensitivity = 50;
double _adsMultiplier = 1.0;
Widget build(BuildContext context) {
// 计算有效DPI
double edpi = _dpi * (_sensitivity / 100);
double scopeEdpi = _dpi * (_scopeSensitivity / 100) * _adsMultiplier;
return Scaffold(
appBar: AppBar(
title: const Text('灵敏度计算器'),
backgroundColor: const Color(0xFF2D2D2D),
),
backgroundColor: const Color(0xFF1A1A1A),
body: SingleChildScrollView(
padding: EdgeInsets.all(16.w),
child: Column(
children: [
_buildDpiSection(),
SizedBox(height: 20.h),
_buildSensitivitySection(),
SizedBox(height: 20.h),
_buildScopeSensitivitySection(),
SizedBox(height: 20.h),
_buildResultSection(edpi, scopeEdpi),
],
),
),
);
}
}
状态管理：使用StatefulWidget管理三个主要参数：鼠标DPI、游戏内灵敏度、开镜灵敏度。
实时计算：在build方法中实时计算eDPI，用户调整参数时立即看到结果。
DPI设置模块
Widget _buildDpiSection() {
return Card(
color: const Color(0xFF2D2D2D),
child: Padding(
padding: EdgeInsets.all(16.w),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'鼠标DPI',
style: TextStyle(
color: Colors.white,
fontSize: 16.sp,
fontWeight: FontWeight.bold,
),
),
Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: const Color(0xFFFF6B35),
borderRadius: BorderRadius.circular(8.r),
),
child: Text(
_dpi.round().toString(),
style: TextStyle(
color: Colors.white,
fontSize: 14.sp,
fontWeight: FontWeight.bold,
),
),
),
],
),
SizedBox(height: 16.h),
Slider(
value: _dpi,
min: 400,
max: 3200,
divisions: 28,
activeColor: const Color(0xFFFF6B35),
inactiveColor: Colors.white24,
label: _dpi.round().toString(),
onChanged: (value) => setState(() => _dpi = value),
),
SizedBox(height: 12.h),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'常见DPI预设',
style: TextStyle(
color: Colors.white70,
fontSize: 12.sp,
),
),
],
),
SizedBox(height: 8.h),
Wrap(
spacing: 8.w,
runSpacing: 8.h,
children: [400, 800, 1600, 3200].map((dpi) {
return GestureDetector(
onTap: () => setState(() => _dpi = dpi.toDouble()),
child: Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: _dpi == dpi
? const Color(0xFFFF6B35)
: Colors.white10,
borderRadius: BorderRadius.circular(6.r),
border: Border.all(
color: _dpi == dpi
? const Color(0xFFFF6B35)
: Colors.white30,
),
),
child: Text(
'$dpi',
style: TextStyle(
color: Colors.white,
fontSize: 12.sp,
fontWeight: FontWeight.bold,
),
),
);
}).toList(),
),
),
],
),
),
);
}
滑块设计：DPI范围从400到3200，这是大多数游戏鼠标的范围。divisions参数让滑块有28个刻度，提供精细的调整。
快速预设：提供常见DPI值的快速按钮，玩家可以一键设置。这样不用每次都拖动滑块。
实时显示：DPI值在卡片顶部实时显示，用户能清楚看到当前设置。
游戏内灵敏度模块
Widget _buildSensitivitySection() {
return Card(
color: const Color(0xFF2D2D2D),
child: Padding(
padding: EdgeInsets.all(16.w),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'游戏内灵敏度',
style: TextStyle(
color: Colors.white,
fontSize: 16.sp,
fontWeight: FontWeight.bold,
),
),
Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: const Color(0xFF4CAF50),
borderRadius: BorderRadius.circular(8.r),
),
child: Text(
_sensitivity.round().toString(),
style: TextStyle(
color: Colors.white,
fontSize: 14.sp,
fontWeight: FontWeight.bold,
),
),
),
],
),
SizedBox(height: 16.h),
Slider(
value: _sensitivity,
min: 1,
max: 100,
divisions: 99,
activeColor: const Color(0xFF4CAF50),
inactiveColor: Colors.white24,
label: _sensitivity.round().toString(),
onChanged: (value) => setState(() => _sensitivity = value),
),
SizedBox(height: 12.h),
Text(
'提示：灵敏度越高，鼠标移动越快。新手建议从50开始调整。',
style: TextStyle(
color: Colors.white70,
fontSize: 11.sp,
height: 1.5,
),
),
],
),
),
);
}
灵敏度范围：游戏内灵敏度通常是1-100的百分比。divisions设置为99，让用户能精细调整。
使用提示：提供新手建议，帮助玩家理解灵敏度的含义。
开镜灵敏度模块
Widget _buildScopeSensitivitySection() {
return Card(
color: const Color(0xFF2D2D2D),
child: Padding(
padding: EdgeInsets.all(16.w),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'开镜灵敏度',
style: TextStyle(
color: Colors.white,
fontSize: 16.sp,
fontWeight: FontWeight.bold,
),
),
Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: const Color(0xFF2196F3),
borderRadius: BorderRadius.circular(8.r),
),
child: Text(
_scopeSensitivity.round().toString(),
style: TextStyle(
color: Colors.white,
fontSize: 14.sp,
fontWeight: FontWeight.bold,
),
),
),
],
),
SizedBox(height: 16.h),
Slider(
value: _scopeSensitivity,
min: 1,
max: 100,
divisions: 99,
activeColor: const Color(0xFF2196F3),
inactiveColor: Colors.white24,
label: _scopeSensitivity.round().toString(),
onChanged: (value) => setState(() => _scopeSensitivity = value),
),
SizedBox(height: 12.h),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'ADS倍数',
style: TextStyle(
color: Colors.white70,
fontSize: 12.sp,
),
),
Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: Colors.white10,
borderRadius: BorderRadius.circular(6.r),
),
child: Text(
'${_adsMultiplier.toStringAsFixed(1)}x',
style: TextStyle(
color: Colors.white,
fontSize: 12.sp,
fontWeight: FontWeight.bold,
),
),
),
],
),
SizedBox(height: 8.h),
Slider(
value: _adsMultiplier,
min: 0.5,
max: 2.0,
divisions: 15,
activeColor: const Color(0xFF2196F3),
inactiveColor: Colors.white24,
label: _adsMultiplier.toStringAsFixed(1),
onChanged: (value) => setState(() => _adsMultiplier = value),
),
],
),
),
);
}
开镜灵敏度：独立的灵敏度设置，用于瞄准镜模式。
ADS倍数：不同的瞄准镜有不同的倍数（如2x、4x、8x）。这个参数影响开镜时的有效DPI。
计算结果展示
Widget _buildResultSection(double edpi, double scopeEdpi) {
return Card(
color: const Color(0xFF2D2D2D),
child: Container(
width: double.infinity,
padding: EdgeInsets.all(20.w),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12.r),
gradient: const LinearGradient(
colors: [Color(0xFFFF6B35), Color(0xFFFF8E53)],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
),
child: Column(
children: [
Text(
'计算结果',
style: TextStyle(
color: Colors.white,
fontSize: 18.sp,
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 20.h),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
_buildResultItem('有效DPI', edpi.toStringAsFixed(0)),
_buildResultItem('开镜eDPI', scopeEdpi.toStringAsFixed(0)),
],
),
SizedBox(height: 20.h),
Container(
padding: EdgeInsets.all(12.w),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.1),
borderRadius: BorderRadius.circular(8.r),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'灵敏度评估',
style: TextStyle(
color: Colors.white,
fontSize: 13.sp,
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 8.h),
Text(
_getSensitivityAssessment(edpi),
style: TextStyle(
color: Colors.white70,
fontSize: 12.sp,
height: 1.5,
),
),
],
),
),
],
),
),
);
}
Widget _buildResultItem(String label, String value) {
return Column(
children: [
Text(
label,
style: TextStyle(
color: Colors.white70,
fontSize: 12.sp,
),
),
SizedBox(height: 8.h),
Text(
value,
style: TextStyle(
color: Colors.white,
fontSize: 28.sp,
fontWeight: FontWeight.bold,
),
),
],
);
}
String _getSensitivityAssessment(double edpi) {
if (edpi < 400) {
return '低灵敏度：适合精准射击，需要大鼠标垫';
} else if (edpi < 800) {
return '中低灵敏度：平衡精准度和转身速度';
} else if (edpi < 1200) {
return '中灵敏度：大多数职业玩家的选择';
} else if (edpi < 1600) {
return '中高灵敏度：快速反应，需要手腕控制';
} else {
return '高灵敏度：快速转身，对手腕稳定性要求高';
}
}
结果展示：清晰地显示计算出的有效DPI。
灵敏度评估：根据eDPI值给出评估，帮助玩家理解自己的灵敏度水平。
灵敏度对比功能
class SensitivityComparisonPage extends StatefulWidget {
const SensitivityComparisonPage({Key? key}) : super(key: key);
State<SensitivityComparisonPage> createState() =>
_SensitivityComparisonPageState();
}
class _SensitivityComparisonPageState extends State<SensitivityComparisonPage> {
final List<Map<String, double>> _presets = [
{'name': '职业选手', 'dpi': 800, 'sens': 50},
{'name': '高手玩家', 'dpi': 1600, 'sens': 40},
{'name': '普通玩家', 'dpi': 800, 'sens': 60},
];
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('灵敏度对比'),
backgroundColor: const Color(0xFF2D2D2D),
),
backgroundColor: const Color(0xFF1A1A1A),
body: ListView.builder(
padding: EdgeInsets.all(16.w),
itemCount: _presets.length,
itemBuilder: (context, index) {
final preset = _presets[index];
final edpi = preset['dpi']! * (preset['sens']! / 100);
return Card(
margin: EdgeInsets.only(bottom: 12.h),
color: const Color(0xFF2D2D2D),
child: Padding(
padding: EdgeInsets.all(12.w),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
preset['name'].toString(),
style: TextStyle(
color: Colors.white,
fontSize: 14.sp,
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 4.h),
Text(
'DPI: ${preset['dpi']!.toInt()} | 灵敏度: ${preset['sens']!.toInt()}',
style: TextStyle(
color: Colors.white70,
fontSize: 12.sp,
),
),
],
),
Container(
padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 6.h),
decoration: BoxDecoration(
color: const Color(0xFFFF6B35),
borderRadius: BorderRadius.circular(6.r),
),
child: Text(
'eDPI: ${edpi.toInt()}',
style: TextStyle(
color: Colors.white,
fontSize: 12.sp,
fontWeight: FontWeight.bold,
),
),
),
],
),
),
);
},
),
);
}
}
预设对比：提供几个常见的灵敏度预设，让玩家快速对比。
参考学习：通过对比职业选手的灵敏度，帮助普通玩家找到合适的设置。
小结
灵敏度计算器虽然功能简单，但对玩家很有帮助。通过清晰的UI和实时计算，玩家能快速找到适合自己的灵敏度设置。
关键要点：准确的计算公式、清晰的参数展示、实用的预设功能、有用的评估建议。做好这些，灵敏度计算器就能成为玩家的好帮手。
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