@capacitor-community/app-icon

App Icon

@capacitor-community/app-icon

Capacitor community plugin for managing an app's icon. The main feature being that you can programmatically change the app icon.

Maintainers

Maintainer	GitHub	Social
John Borges	johnborges	@johnborges

Before Starting

This plugin only changes the main app icon on the device homescreen. The icon in springboard and in other areas will not change and continue to show the original. (iOS)

Changing the app icon is only allowed when the app is in the foreground (iOS).

Android support is currently in beta. See the android-support branch for more info.

Installation

npm install @capacitor-community/app-icon
npx cap sync

Configuration

The alternate icons need to be included within the app bundle and referenced in the project prior to using this plugin. It is not possible to switch to any icon on the fly without adding it to the project first. Below are the configurations steps for each platform.

Android Configuration

Add Alternate Icons

Add the alternate icons directly to your android project in app/src/main/res.

Setup ApplicationManifest.xml

Each alternate icon is represented by an <activity-alias>. Add all the alternative icons to the ApplicationManifest.xml as child elements under <application>. The name attribute on <activity-alias> must be prefixed with dot . See ApplicationManifest.xml for full example.

<application>
    <!-- ... -->
    <activity
        android:name=".MainActivity"
        android:exported="true"
        android:launchMode="singleTask"
        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
        android:label="@string/title_activity_main"
        android:theme="@style/AppTheme.NoActionBarLaunch">

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <!-- <category android:name="android.intent.category.LAUNCHER" /> -->
        </intent-filter>

    </activity>
    <activity-alias
        android:label="Stencil"
        android:icon="@drawable/stencil"
        android:roundIcon="@drawable/stencil"
        android:name=".stencil"
        android:enabled="true"
        android:exported="true"
        android:targetActivity=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity-alias>
  
  <!-- additional <activity-alias> -->

<application>

iOS Configuration

Add Alternate Icons

Add the alternate icons directly to your iOS project or in a subdirectory.

Setup Info.plist

Add the CFBundleIcons key to Info.plist with CFBundleAlternateIcons dictionary. Each alternate icon needs to be specified.

Providing every resolution for each alternative is not required. By including the icon with the highest supported resolution, iOS will handle the other resolutions by scalling down the large one provided.

From Apple:

When specifying icon filenames, it is best to omit any filename extensions. Omitting the filename extension lets the system automatically detect high-resolution (@2x) versions of your image files using the standard-resolution image filename. If you include filename extensions, you must specify all image files (including the high-resolution variants) explicitly. The system looks for the icon files in the main resources directory of the bundle.

<key>CFBundleIcons</key>
<dict>
  <key>CFBundleAlternateIcons</key>
  <dict>
    <!-- The names to reference in your code -->
    <key>ionic-icon</key>
    <dict>
      <key>UIPrerenderedIcon</key>
      <true/>
      <key>CFBundleIconFiles</key>
      <array>
        <!-- Filenames-->
        <string>ionic-icon</string>
      </array>
    </dict>
    <!-- ... additional alternates if any ... -->
  </dict>
</dict>

Supporting iPad

For iPad specific version of an icon, there is an additional key to add in Info.plist.

<key>CFBundleIcons~ipad</key>
<dict>
  <!-- same as above  -->
</dict>

Usage

import { AppIcon } from '@capacitor-community/app-icon';

const changeIcon = async (iconName) => {
  await AppIcon.change({name: iconName, suppressNotification: true});
}

const getName = async () => {
  const { value } = await AppIcon.getName();
  console.log(value);
}

const resetIcon = async () => {
  const disable: string[] = ['stencil']; // all added aliaces names 
  await AppIcon.reset({ suppressNotification: true, disable });
}

API

• isSupported()
• getName()
• change(...)
• reset(...)
• Interfaces

isSupported()

isSupported() => Promise<{ value: boolean; }>

Checks if changing the app icon is supported. (iOS only)

Returns: Promise<{ value: boolean; }>

Since: 1.0.0

---

getName()

getName() => Promise<{ value: string | null; }>

Gets the name of currently set alternate icon. If original icon is set, returns null.

Returns: Promise<{ value: string | null; }>

Since: 1.0.0

---

change(...)

change(options: IconOptions) => Promise<void>

Changes app icon to specified alternate.

Param	Type
options	IconOptions

Since: 1.0.0

---

reset(...)

reset(options: ResetOptions) => Promise<void>

Reverts app icon to original.

Param	Type
options	ResetOptions

Since: 1.0.0

---

Interfaces

IconOptions

Prop	Type	Description	Since
name	string	Name of alternate icon to set
disable	string[]	Name of icons to disable. This is not used for iOS, but required for Android.	3.1.0
suppressNotification	boolean	Flag controlling the in app notification which shows after icon is changed. (iOS)

ResetOptions

Prop	Type	Description	Since
suppressNotification	boolean	Flag controlling the in app notification which shows after icon is changed (iOS).
disable	string[]	Name of icons to disable. This is not used for iOS, but required for Android.	3.1.1

Contributors ✨

Thanks goes to these wonderful people (emoji key):

John Borges 💻

Simon Grimm 💻

Christian von Rohr 💻

QliQ.dev 💻

This project follows the all-contributors specification. Contributions of any kind welcome!