鸿蒙 APP 性能优化与 Next 原生合规实践

鸿蒙 APP 性能优化与 Next 原生合规实践 | 极客日志

import startup from '@ohos.startup';

export class StartupOptimizationUtil {
    private static instance: StartupOptimizationUtil | null = null;
    private startupHelper: startup.StartupHelper | null = null;

    static getInstance(): StartupOptimizationUtil {
        if (!StartupOptimizationUtil.instance) {
            StartupOptimizationUtil.instance = new StartupOptimizationUtil();
        }
        return StartupOptimizationUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.startupHelper) {
            this.startupHelper = startup.createStartupHelper();
        }
    }

    async optimizeStartupTime(): Promise<void> {
        if (!this.startupHelper) return;
        await this.startupHelper.optimizeStartupTime();
    }

    async getStartupTime(): Promise<number> {
        if (!this.startupHelper) return 0;
        const result = await this.startupHelper.getStartupTime();
        return result;
    }
}

import { StartupOptimizationUtil } from '../utils/StartupOptimizationUtil';

export default class EntryAbility extends UIAbility {
    onWindowStageCreate(windowStage: window.WindowStage): void {
        StartupOptimizationUtil.getInstance().init();
        this.optimizeStartupTime();
        windowStage.loadContent('pages/Index', (err, data) => {
            if (err.code) {
                hilog.error(0x0000, 'EntryAbility', 'Failed to load content. Cause: %{public}s', JSON.stringify(err) ?? '');
                return;
            }
            hilog.info(0x0000, 'EntryAbility', 'Succeeded in loading content. Data: %{public}s', JSON.stringify(data) ?? '');
        });
    }

    async optimizeStartupTime(): Promise<void> {
        await StartupOptimizationUtil.getInstance().optimizeStartupTime();
        const startupTime = await StartupOptimizationUtil.getInstance().getStartupTime();
        hilog.info(0x0000, 'EntryAbility', '应用启动时间：%{public}dms', startupTime);
    }
}

import rendering from '@ohos.rendering';

export class RenderingOptimizationUtil {
    private static instance: RenderingOptimizationUtil | null = null;
    private renderingHelper: rendering.RenderingHelper | null = null;

    static getInstance(): RenderingOptimizationUtil {
        if (!RenderingOptimizationUtil.instance) {
            RenderingOptimizationUtil.instance = new RenderingOptimizationUtil();
        }
        return RenderingOptimizationUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.renderingHelper) {
            this.renderingHelper = rendering.createRenderingHelper();
        }
    }

    async optimizeRenderingEfficiency(): Promise<void> {
        if (!this.renderingHelper) return;
        await this.renderingHelper.optimizeRenderingEfficiency();
    }

    async getRenderingFrameRate(): Promise<number> {
        if (!this.renderingHelper) return 0;
        const result = await this.renderingHelper.getRenderingFrameRate();
        return result;
    }
}

import { RenderingOptimizationUtil } from '../utils/RenderingOptimizationUtil';

@Entry
@Component
struct HomePage {
    @State recommendedProducts: Array<ProductModel> = [];
    @State renderingFrameRate: number = 0;

    build() {
        Column({ space: 16 }) {
            Text(`渲染帧率：${this.renderingFrameRate}fps`).fontSize(14).textColor('#666666');
            Text('推荐商品').fontSize(18).fontWeight(FontWeight.Bold).textColor('#000000');
            ListComponent({ data: this.recommendedProducts, renderItem: (item: ProductModel, index: number) => {
                Row({ space: 16 }) {
                    Image(item.imageUrl).width(60).height(60).objectFit(ImageFit.Contain);
                    Column({ space: 8 }) {
                        Text(item.name).fontSize(14).fontWeight(FontWeight.Bold).textColor('#000000');
                        Text(`¥${item.price}`).fontSize(16).fontWeight(FontWeight.Bold).textColor('#FF0000');
                    }.layoutWeight(1);
                    Text(item.category).fontSize(14).textColor('#666666');
                }.width('100%').height('auto').padding(16).backgroundColor('#FFFFFF').borderRadius(12);
            }, onItemClick: (item: ProductModel, index: number) => {
                router.pushUrl({ url: '/pages/ProductDetailPage', params: { id: item.id } });
            }});
        }.width('100%').height('100%').padding(16).backgroundColor('#F5F5F5');
    }

    aboutToAppear() {
        RenderingOptimizationUtil.getInstance().init();
        this.optimizeRenderingEfficiency();
        this.getRecommendedProducts();
    }

    async optimizeRenderingEfficiency(): Promise<void> {
        await RenderingOptimizationUtil.getInstance().optimizeRenderingEfficiency();
        this.renderingFrameRate = await RenderingOptimizationUtil.getInstance().getRenderingFrameRate();
    }
}

import network from '@ohos.network';

export class NetworkOptimizationUtil {
    private static instance: NetworkOptimizationUtil | null = null;
    private networkHelper: network.NetworkHelper | null = null;

    static getInstance(): NetworkOptimizationUtil {
        if (!NetworkOptimizationUtil.instance) {
            NetworkOptimizationUtil.instance = new NetworkOptimizationUtil();
        }
        return NetworkOptimizationUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.networkHelper) {
            this.networkHelper = network.createNetworkHelper();
        }
    }

    async optimizeNetworkRequestSpeed(): Promise<void> {
        if (!this.networkHelper) return;
        await this.networkHelper.optimizeNetworkRequestSpeed();
    }

    async getNetworkRequestSpeed(): Promise<number> {
        if (!this.networkHelper) return 0;
        const result = await this.networkHelper.getNetworkRequestSpeed();
        return result;
    }
}

import { NetworkOptimizationUtil } from '../utils/NetworkOptimizationUtil';

export class ProductService {
    async getProducts(): Promise<Array<ProductModel>> {
        await NetworkOptimizationUtil.getInstance().optimizeNetworkRequestSpeed();
        const requestSpeed = await NetworkOptimizationUtil.getInstance().getNetworkRequestSpeed();
        hilog.info(0x0000, 'ProductService', '网络请求速度：%{public}dms', requestSpeed);
        await new Promise(resolve => setTimeout(resolve, 1000));
        return products;
    }
}

import standard from '@ohos.standard';

export class CodeStandardUtil {
    private static instance: CodeStandardUtil | null = null;
    private standardHelper: standard.StandardHelper | null = null;

    static getInstance(): CodeStandardUtil {
        if (!CodeStandardUtil.instance) {
            CodeStandardUtil.instance = new CodeStandardUtil();
        }
        return CodeStandardUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.standardHelper) {
            this.standardHelper = standard.createStandardHelper();
        }
    }

    async checkCodeStandard(): Promise<void> {
        if (!this.standardHelper) return;
        await this.standardHelper.checkCodeStandard();
    }

    async fixCodeStandardIssues(): Promise<void> {
        if (!this.standardHelper) return;
        await this.standardHelper.fixCodeStandardIssues();
    }
}

import compliance from '@ohos.compliance';

export class PermissionComplianceUtil {
    private static instance: PermissionComplianceUtil | null = null;
    private complianceHelper: compliance.ComplianceHelper | null = null;

    static getInstance(): PermissionComplianceUtil {
        if (!PermissionComplianceUtil.instance) {
            PermissionComplianceUtil.instance = new PermissionComplianceUtil();
        }
        return PermissionComplianceUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.complianceHelper) {
            this.complianceHelper = compliance.createComplianceHelper();
        }
    }

    async checkPermissionCompliance(): Promise<void> {
        if (!this.complianceHelper) return;
        await this.complianceHelper.checkPermissionCompliance();
    }

    async fixPermissionComplianceIssues(): Promise<void> {
        if (!this.complianceHelper) return;
        await this.complianceHelper.fixPermissionComplianceIssues();
    }
}

import compliance from '@ohos.compliance';

export class DataComplianceUtil {
    private static instance: DataComplianceUtil | null = null;
    private complianceHelper: compliance.ComplianceHelper | null = null;

    static getInstance(): DataComplianceUtil {
        if (!DataComplianceUtil.instance) {
            DataComplianceUtil.instance = new DataComplianceUtil();
        }
        return DataComplianceUtil.instance;
    }

    async init(): Promise<void> {
        if (!this.complianceHelper) {
            this.complianceHelper = compliance.createComplianceHelper();
        }
    }

    async checkDataCompliance(): Promise<void> {
        if (!this.complianceHelper) return;
        await this.complianceHelper.checkDataCompliance();
    }

    async fixDataComplianceIssues(): Promise<void> {
        if (!this.complianceHelper) return;
        await this.complianceHelper.fixDataComplianceIssues();
    }
}

{
    "module": {
        "requestPermissions": [...],
        "abilities": [...],
        "widgets": [...],
        "pages": [...]
    }
}

鸿蒙 APP 性能优化与 Next 原生合规实践

鸿蒙 APP 性能优化与 Next 原生合规实战

一、性能优化基础

1.1 性能优化定义

1.2 性能优化架构

二、性能优化实战

2.1 启动优化实现

1. 启动优化工具类

2. 启动优化应用

2.2 渲染优化实现

1. 渲染优化工具类

2. 渲染优化应用

2.3 网络优化实现

1. 网络优化工具类

2. 网络优化应用

三、Next 原生合规实战

3.1 代码规范实现

3.2 权限合规实现

3.3 数据合规实现

四、项目配置与部署

4.1 配置文件修改

4.2 项目部署

五、总结

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鸿蒙 APP 性能优化与 Next 原生合规实践

鸿蒙 APP 性能优化与 Next 原生合规实战

一、性能优化基础

1.1 性能优化定义

1.2 性能优化架构

二、性能优化实战

2.1 启动优化实现

1. 启动优化工具类

2. 启动优化应用

2.2 渲染优化实现

1. 渲染优化工具类

2. 渲染优化应用

2.3 网络优化实现

1. 网络优化工具类

2. 网络优化应用

三、Next 原生合规实战

3.1 代码规范实现

3.2 权限合规实现

3.3 数据合规实现

四、项目配置与部署

4.1 配置文件修改

4.2 项目部署

五、总结

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