Source Local Dir: /home/tygasoft/Tyga/GitHub/IotServer/Src/TygaSoft /home/tygasoft/Tyga/GitHub/IotClient

vscode使用技巧： Ctrl+Shift+O：在当前文档中快速定位所有标签； ctrl+t:查找内容，列出所在文件；

ubuntu environment: /etc/environment

ubuntu android studio: sudo /home/tygasoft/ProgramFiles/android-studio/bin/studio.sh /usr/local/bin/android-studio/studio.sh

ubuntu postman: sudo tar -xzf Postman-linux-x64-6.6.1.tar.gz sudo ln -s Postman /usr/bin/Postman

root权限： sudo -s rm -r ionic rm -r Postman

官方：install nodejs: curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash - sudo apt-get install -y nodejs 源文件安装的node, 卸载方式：首先cd到解压后到目录： sudo make uninstall

node： sudo npm uninstall npm -g sudo apt-get remove nodejs

https://nodejs.org/en/download/ 解压缩.tar.xz: xz -d node-v6.10.1-linux-x64.tar.xz tar -xvf node-v6.10.1-linux-x64.tar tar xvJf node-v10.14.2-linux-x64.tar.xz sudo tar -xzf Postman-linux-x64-6.6.1.tar.gz sudo ln -s Postman /usr/bin/ ln -s Postman /usr/local/bin/Postman

ln -s /home/tygasoft/ProgramFiles/node-v10.14.2-linux-x64/bin/node /usr/local/bin/node ln -s /home/tygasoft/ProgramFiles/node-v10.14.2-linux-x64/bin/npm /usr/local/bin/npm ln -s /home/tygasoft/ProgramFiles/node-v10.14.2-linux-x64/bin/ionic /usr/local/bin/ionic

npm uninstall -g ionic npm cache clean npm i -g ionic@latest

npm install npm install -g ionic cordova ionic serve

ionic generate ionic g page pages/xxx ionic g component components/xxx --export ionic g service services/xxx

ionic v4 docs: https://beta.ionicframework.com/docs

https://www.joshmorony.com/topics/ionic-tutorials/

ionic capacitor build: ionic build --prod npm install --save @capacitor/core @capacitor/cli npx cap init [appName][appid] ionic capacitor add android ionic capacitor copy android ionic capacitor open android ionic capacitor sync android

ionic cordova build: https://ionicframework.com/docs/intro/deploying/

docs: https://beta.ionicframework.com/docs/building/android

https://www.joshmorony.com/deploying-capacitor-applications-to-android-development-distribution/ --android

https://www.joshmorony.com/deploying-capacitor-applications-to-ios-development-distribution/ --ios

Publishing a Progressive Web App: https://beta.ionicframework.com/docs/publishing/progressive-web-app

storage: https://beta.ionicframework.com/docs/building/storage/

angular v6 docs: https://v6.angular.io/docs

https://angular.io/guide/router

samples: https://devdactic.com/ionic-4-login-angular/

android studio: https://developer.android.google.cn/studio/

setRoot page: NavController：this.navCtrl.navigateRoot('/support'); this.navCtrl.goRoot('/intro') this.navCtrl.navigateForward('/route') this.navCtrl.navigateBack('/route') https://www.joshmorony.com/converting-ionic-3-push-pop-navigation-to-angular-routing-in-ionic-4/

Adding Background Geolocation to an Ionic 2 & 3 Application： https://www.joshmorony.com/adding-background-geolocation-to-an-ionic-2-application/

angular: 视图刷新：ChangeDetectorRef、NgZone 类：clss，接口：interface 继承类：extends，实现接口：implements TypeScript:https://www.tslang.cn

Promise代码： return new Promise((resolve, reject) => { let request = this.indexedDB.open(dbName, dbVersion); request.onerror = function(event) { reject("IndexedDB数据库打开错误，" + event); }; request.onsuccess = function(event) { resolve(event.target.result); }; }); }

运行效果图：