material-design

This Activity already has an action bar supplied by the window decor

I think you’re developing for Android Lollipop, but anyway include this line: to your theme declaration inside of your app/src/main/res/values/styles.xml. Also, if you’re using AppCompatActivity support library of version 22.1 or greater, add this line: Your theme declaration may look like this after all these additions:

Where do I find a list of all mat-icons — Angular

EDIT: As the icons listed on the website are slightly outdated, here’s some alternative resources: Material Design Icons DX – (forked version) Isn’t it Material Icons (as stated by @RobbyCornelissen)? The Google Material Design team had recently (last month) updated their website. Anyways, the Angular Material team expects developers to include the Google Material Design Icon Font … Read more