Our Angular tutorial is coming soon, however a lot of what you can do is showcased in the demo template application.
https://github.com/elastos/Elastos.Trinity.ToolChains/tree/master/cli/assets/dapptemplate/angular/demo
trinity-cli
> Version 1.1.31
Then you can open the code in any Javascript based IDE or editor and see how the code works yourself, if you have any questions please join us on Telegram.
Ask developer questions and get support - https://t.me/elastosdev