Live Icon

Features

All the features listed below can be performed at the runtime.

✅   Change App Icons
✅   Change App Label

Quick Start

Step 1: Include plugin to your project

dependencies:
  live_icon: <latest version>

Step 2: Add activity-alias in AndroidManifest.xml

...
...
<application
    android:label="live_icon_example"
    android:icon="@mipmap/ic_launcher">
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTop"
        android:theme="@style/LaunchTheme"
        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
        android:hardwareAccelerated="true"
        android:windowSoftInputMode="adjustResize">
        <meta-data
            android:name="io.flutter.embedding.android.NormalTheme"
            android:resource="@style/NormalTheme"
            />
        <meta-data
            android:name="io.flutter.embedding.android.SplashScreenDrawable"
            android:resource="@drawable/launch_background"
            />
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>

    <!-- Live Icon Addition -->
    <activity-alias
        android:name=".DarkTheme"
        android:enabled="false"
        android:icon="@mipmap/dark_theme"
        android:label="DarkThemeLabel"
        android:targetActivity=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity-alias>

    <activity-alias
        android:name=".LightTheme"
        android:enabled="false"
        android:icon="@mipmap/light_theme"
        android:label="LightThemeLabel"
        android:targetActivity=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity-alias>
    <!-- Live Icon Addition -->

    <meta-data
        android:name="flutterEmbedding"
        android:value="2" />

</application>
...
...

Step 3: Create classes

Create java/kotlin files with the same name as provided in activity-alias.

In the above AndroidManifest.xml example, 2 activity-alias are provided, so the number of java/kotlin files will be 2. Example:

1. DarkTheme.java

package com.hackthedeveloper.live_icon_example;

public class DarkTheme {
}

2. LightTheme.java

package com.hackthedeveloper.live_icon_example;

public class LightTheme {
}

One thing to note here is that, we have added two extra activity as activity-alias, and we now have 3 activity in total.

Step 4: Initialise plugin

List all the activity-alias class names. NOTE: MainActivity will also be added here as it containes the launch intent.

LiveIcon.initialize(
    classNames: ['MainActivity', 'DarkTheme', 'LightTheme'],
);

Step 5: Switch App icon

Use switchIconTo to switch app icons. It takes in the className that must match the desired activity-alias android:name.

await liveIcon.switchIconTo(
    className: 'DarkTheme',
);

Project Created & Maintained By

Subham Praharaj

Divyanshu Shekhar

Contributions

Contributions are welcomed!

If you feel that a hook is missing, feel free to open a pull-request.

For a custom-hook to be merged, you will need to do the following:

Describe the use-case.

• Open an issue explaining why we need this hook, how to use it, ... This is important as a hook will not get merged if the hook doens't appeal to a large number of people.

• If your hook is rejected, don't worry! A rejection doesn't mean that it won't be merged later in the future if more people shows an interest in it. In the mean-time, feel free to publish your hook as a package on https://pub.dev.

• A hook will not be merged unles fully tested, to avoid breaking it inadvertendly in the future.

Copyright & License

Code and documentation Copyright (c) 2021 Devs On Flutter. Code released under the BSD 3-Clause License.