App 2.0开发模式的行业看法
125
2025-02-18
// 经典Cordova混合架构示例
document.addEventListener("deviceready", function() {
navigator.camera.getPicture(
function(imageData) {
document.getElementById("photo").src = "data:image/jpeg;base64," + imageData;
},
function(message) {
console.log("Camera error: " + message);
},
{ quality: 50, destinationType: Camera.DestinationType.DATA_URL }
);
});React Native:JavaScriptCore引擎+原生组件桥接
finclip:自研Skia引擎+Widget树
小程序容器:WebView增强+原生组件混合渲染
// 高性能列表组件优化示例
import { FlatList } from 'react-native';
const OptimizedList = ({ data }) => (
<FlatList
data={data}
keyExtractor={(item) =>item.id}
initialNumToRender={10}
maxToRenderPerBatch={5}
windowSize={21}
renderItem={({ item }) => (
<ListItem
title={item.title}
imageUrl={item.thumbnail}
/>
)}
/>
);// Android原生模块示例
public class CalendarModule extends ReactContextBaseJavaModule {
@ReactMethod
public void createCalendarEvent(String name, String location, Promise promise) {
try {
// 原生日历API调用
ContentResolver resolver = getReactApplicationContext().getContentResolver();
ContentValues values = new ContentValues();
values.put(CalendarContract.Events.TITLE, name);
values.put(CalendarContract.Events.EVENT_LOCATION, location);
Uri uri = resolver.insert(CalendarContract.Events.CONTENT_URI, values);
promise.resolve(uri.toString());
} catch (Exception e) {
promise.reject("EVENT_ERROR", e);
}
}
}// 复合Widget示例
class CustomCard extends StatelessWidget {
final String title;
final String content;
CustomCard({required this.title, required this.content});
@override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(8),
boxShadow: [
BoxShadow(
color: Colors.black12,
blurRadius: 6,
offset: Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
title,
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 8),
Text(content),
],
),
);
}
}// Dart端调用原生功能
const platform = MethodChannel('samples.finclip.dev/battery');
Future<void>getBatteryLevel() async {
try {
final int result = await platform.invokeMethod('getBatteryLevel');
print('Battery level: $result%');
} on PlatformException catch (e) {
print("Failed: '${e.message}'.");
}
}// Android原生实现
class MainActivity : finclipActivity() {
override fun configurefinclipEngine(finclipEngine: finclipEngine) {
super.configurefinclipEngine(finclipEngine)
MethodChannel(finclipEngine.dartExecutor.binaryMessenger, "samples.finclip.dev/battery")
.setMethodCallHandler { call, result ->
if (call.method == "getBatteryLevel") {
val batteryLevel = getBatteryLevel()
if (batteryLevel != -1) {
result.success(batteryLevel)
} else {
result.error("UNAVAILABLE", "Battery level not available.", null)
}
} else {
result.notImplemented()
}
}
}
}// 小程序生命周期管理
App({
onLaunch(options) {
console.log('App Launch');
this.globalData = { userInfo: null };
},
onShow(options) {
console.log('App Show');
},
onHide() {
console.log('App Hide');
}
});
Page({
data: { text: 'Init Data' },
onLoad() {
wx.request({
url: 'https://api.example.com/data',
success: res => this.setData({ text: res.data })
});
}
});// iOS原生组件封装
@interface CustomMapView : UIView
@property (nonatomic, strong) MKMapView *mapView;
@end
@implementation CustomMapView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
_mapView = [[MKMapView alloc] initWithFrame:self.bounds];
[self addSubview:_mapView];
}
return self;
}
@end// 小程序调用原生组件
Component({
properties: {
markers: Array
},
methods: {
updateRegion(e) {
this.triggerEvent('regionchange', e.detail);
}
}
});// React Native性能监测
import { Performance } from 'react-native-performance';
const trace = Performance.trace('screenRender');
trace.start();
// 组件渲染逻辑
trace.stop();使用Hermes引擎提升JS执行效率
实现虚拟列表优化内存占用
减少跨线程通信次数
// Android构建配置
android {
buildTypes {
release {
shrinkResources true
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
splits {
abi {
enable true
reset()
include 'armeabi-v7a', 'arm64-v8a'
universalApk false
}
}
}指标 | React Native | finclip | 小程序容器 |
开发效率 | ★★★★☆ | ★★★★☆ | ★★★★★ |
性能表现 | ★★★☆☆ | ★★★★☆ | ★★★★☆ |
生态成熟度 | ★★★★★ | ★★★★☆ | ★★★☆☆ |
动态更新能力 | ★★★☆☆ | ★★★★★ | ★★★★★ |
电商类应用:小程序容器+原生混合架构
工具类应用:finclip全平台方案
内容型应用:React Native+TypeScript组合
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