Dynamic Launcher Icon and Name for Android

Here is the simple way to change your android apps Launcher icon and Application name dynamically. Note that the gradle build files are written in Kotlin (.kts)

Steps:

Step 1
Create an empty class each for the number of icons wanted to declare. In my example, it is OneLauncherAlias.kt, TwoLauncherAlias.kt and ThreeLauncherAlias.kt

package com.misles.dynamiclaunchericon

class OneLauncherAlias {
    // No implementation required for this setup.
}

Step 2

Add activity-alias in your AndroidManifest.xml

<activity-alias
                android:name="OneLauncherAlias"
                android:enabled="true"
                android:icon="@drawable/one"
                android:label="One"
                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="TwoLauncherAlias"
                android:enabled="false"
                android:label="Two"
                android:icon="@drawable/two"
                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="ThreeLauncherAlias"
                android:enabled="false"
                android:label="Three"
                android:icon="@drawable/three"
                android:targetActivity=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity-alias>
        

Step 3
Enable and disable the activity-alias based on your requirement. In my example, On click of the one layout, I am enabling the activity-alias OneLauncherAlias and disabling the rest.

one.setOnClickListener{
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.OneLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_ENABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.TwoLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.ThreeLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)

            Toast.makeText(this@MainActivity, "Launcher one has been applied successfully",Toast.LENGTH_SHORT).show()
        }

        two.setOnClickListener{
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.OneLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.TwoLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_ENABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.ThreeLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)
            Toast.makeText(this@MainActivity, "Launcher three has been applied successfully",Toast.LENGTH_SHORT).show()
        }

        three.setOnClickListener{
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.OneLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.TwoLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_DISABLED,PackageManager.DONT_KILL_APP)
            packageManager.setComponentEnabledSetting(ComponentName(this@MainActivity, com.misles.dynamiclaunchericon.ThreeLauncherAlias::class.java), PackageManager.COMPONENT_ENABLED_STATE_ENABLED,PackageManager.DONT_KILL_APP)
            Toast.makeText(this@MainActivity, "Launcher two has been applied successfully",Toast.LENGTH_SHORT).show()
        }

#Screenshots