PlatformHostApiImpl.ets
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import { PlatformHostApi } from '../pigeon/PlatformApi';
import { bundleManager } from '@kit.AbilityKit';
import { deviceInfo } from '@kit.BasicServicesKit';
import { display } from '@kit.ArkUI';
import { web_webview } from '@kit.ArkWeb';
/**
* PlatformApi HarmonyOS implementation.
*
* 组装完整 User-Agent，格式与 Android 端保持一致：
* `{systemWebViewUA} doublefeel/{versionCode}({versionName})({manufacturer}##{brand}##{model}; OpenHarmony{osVersion}; {height}x{width})(huawei)`
*/
export class PlatformHostApiImpl extends PlatformHostApi {
getFullUserAgent(): string {
// 1. 系统 WebView UA
let systemUa = '';
try {
systemUa = web_webview.WebviewController.getDefaultUserAgent();
} catch (_) {
systemUa = '';
}
// 2. 版本信息（同步读取 bundleInfo）
let versionCode = 0;
let versionName = '';
try {
const bundleInfo = bundleManager.getBundleInfoForSelfSync(
bundleManager.BundleFlag.GET_BUNDLE_INFO_DEFAULT
);
versionCode = bundleInfo.versionCode;
versionName = bundleInfo.versionName;
} catch (_) {}
// 3. 设备信息（@ohos.deviceInfo 常量，无需异步）
const manufacturer: string = deviceInfo.manufacture ?? '';
const brand: string = deviceInfo.brand ?? '';
const model: string = deviceInfo.productModel ?? '';
// osFullName 示例："OpenHarmony 4.1.0"，取主版本号数字部分
const osVersion: string = deviceInfo.osFullName.replace(/[^0-9]/g, '') ?? '';
// 4. 屏幕物理分辨率：长边为 height，短边为 width
let screenWidth = 0;
let screenHeight = 0;
try {
const defaultDisplay = display.getDefaultDisplaySync();
const w = defaultDisplay.width;
const h = defaultDisplay.height;
screenWidth = Math.min(w, h);
screenHeight = Math.max(w, h);
} catch (_) {}
// 5. 组装 customAgent（与 Android DeviceInfoUtils.userAgent 格式一致）
const customAgent =
`doublefeel/${versionCode}(${versionName})` +
`(${manufacturer}##${brand}##${model}; OpenHarmony${osVersion}; ${screenHeight}x${screenWidth})` +
`(huawei)`;
const full = `${systemUa.trim()} ${customAgent}`.trim();
return full;
}
}