我正在与Ionic v4和Angular PWA服务人员一起进行PWA。在app.component.ts上有一个注入的服务,用于检查PWA上是否有更新,然后下载并重新加载。
当我使用浏览器打开PWA时,服务运行良好;如果部署更新,则服务工作程序会更新缓存的PWA并“自动重新加载”页面。
问题与PWA /独立模式有关,在iOS上,当PWA添加到主屏幕时,它不再刷新,甚至用任务应用列表将其杀死。仅当我关闭设备并再次打开时,它才会刷新应用程序的状态。在Android设备上,所有功能均可在PWA模式下正常工作。
这是我与Angular Service Worker一起实施的版本检查器服务:
import {Injectable} from '@angular/core';
import {SwUpdate} from '@angular/service-worker';
@Injectable()
export class LogUpdateService {
constructor(updates: SwUpdate) {
console.warn('check')
updates.available.subscribe(event => {
console.log('current version is', event.current);
console.log('available version is', event.available);
updates.activateUpdate().then(() => {
console.warn('downloaded')
document.location.reload();
});
});
updates.activated.subscribe(event => {
console.log('old version was', event.previous);
console.log('new version is', event.current);
});
}
}
这是我的package.json:
"dependencies": {
"@angular/common": "^7.2.9",
"@angular/core": "^7.2.9",
"@angular/forms": "^7.2.9",
"@angular/http": "^7.2.9",
"@angular/platform-browser": "^7.2.9",
"@angular/platform-browser-dynamic": "^7.2.9",
"@angular/pwa": "0.13.8",
"@angular/router": "^7.2.9",
"@angular/service-worker": "7.2.12",
"@ionic-native/core": "^5.2.0",
"@ionic-native/network": "^5.2.0",
"@ionic-native/splash-screen": "^5.2.0",
"@ionic-native/status-bar": "^5.2.0",
"@ionic/angular": "4.2.0",
"@ionic/storage": "^2.2.0",
"@ngx-translate/core": "^11.0.1",
"@ngx-translate/http-loader": "^4.0.0",
"cordova-plugin-network-information": "2.0.1",
"cordova-sqlite-storage": "3.2.0",
"core-js": "^2.6.5",
"ionic2-calendar": "^0.5.2",
"moment": "^2.24.0",
"rxjs": "~6.4.0",
"serve": "^10.1.2",
"zone.js": "~0.8.29"
},
"devDependencies": {
"@angular-devkit/architect": "0.13.8",
"@angular-devkit/build-angular": "0.13.8",
"@angular-devkit/core": "7.3.8",
"@angular-devkit/schematics": "7.3.8",
"@angular/cli": "7.3.8",
"@angular/compiler": "~7.2.9",
"@angular/compiler-cli": "~7.2.9",
"@angular/language-service": "~7.2.9",
"@ionic/angular-toolkit": "1.5.0",
"@types/jasmine": "~3.3.9",
"@types/jasminewd2": "~2.0.6",
"@types/node": "~11.11.3",
"@ionic/lab": "1.0.24",
"codelyzer": "~4.5.0",
"jasmine-core": "~3.3.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~4.0.1",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.5",
"karma-jasmine": "~2.0.1",
"karma-jasmine-html-reporter": "^1.4.0",
"protractor": "~5.4.2",
"ts-node": "~8.0.3",
"tslint": "~5.14.0",
"typescript": "^3.1.6"
},
"description": "An Ionic project",
"cordova": {
"plugins": {
"cordova-sqlite-storage": {},
"cordova-plugin-network-information": {}
}
}
有这个问题的主意吗?
最佳答案
另请:PWAs on iOS 12.2 beta: the good, the bad, and the "not sure yet if good"
关于ios - Angular Service Workers无法在iOS独立模式下工作,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/55570125/