Add Custom Icon in Ionic 2

Issue

I am using Ionic 2 for developing my App. I want to use my custom icons in my app like we use ionic 2 icons using tag. Eg:

<ion-icon name="my-custom-icon"></ion-icon>

How can i achieve this? Is there any recommended way to doing this?

Solution

If you want to use custom fonts in ionic 2+ you can do it with following.

Step 01:

• Have/create custom font SVG files using tools such as XD.
• Go to awesome online tool https://icomoon.io to generate font icons out of your SVG files. It's free tool and very good, I am using it for a while.
• Download your custom font file.
• Your file will look like something below.

[class^="icon-"], [class*=" icon-"] {
  font-family: 'icomoon' !important;
  speak: none;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
}

replace above code with :

[class^="icon-"],
[class*=" icon-"],
[class^="ion-ios-icon"],
[class*="ion-ios-icon"],
[class^="ion-md-icon"],
[class*="ion-md-icon"]{
  @extend .ion;
  font-family: 'icomoon' !important;
  speak: none;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
}

Step 02:

• We can use SASS @mixing for repetitive work

  @mixin makeIcon($arg, $val) {
  .ion-ios-#{$arg}:before ,
  .ion-ios-#{$arg}-circle:before ,
  .ion-ios-#{$arg}-circle-outline:before ,
  .ion-ios-#{$arg}-outline:before ,
  .ion-md-#{$arg}:before ,
  .ion-md-#{$arg}-circle:before ,
  .ion-md-#{$arg}-circle-outline:before ,
  .ion-md-#{$arg}-outline:before  {
    content: $val;
    font-size: 26px;
  }
}

we can use our sass mixing in our sass file like :

@include makeIcon(icon-new-home, '\e911')

Step 03

Use it like

<ion-tabs class="footer-tabs" [selectedIndex]="mySelectedIndex">
    <ion-tab [root]="tab1Root" tabIcon="home"></ion-tab>
    <ion-tab [root]="tab2Root" tabIcon="icon-new-home"></ion-tab>
 </ion-tabs>

and its even support android ripple effect, which kinda looks cool

[Updated] 30 Nov 2017

@ionic/app-scripts : 3.1.2
Ionic Framework    : ionic-angular 3.9.2

For Ionic 3.1.2

You need to add @import "ionicons"; inside your /src/theme/variables.scss file which will fix below error

"[class^="icon-"]" failed to @extend ".ion". The selector ".ion" was not found. Use "@extend .ion !optional" 
        if the extend should be able to fail. 

Answered By - Anjum....