Android hide/unhide app icon programmatically

Hide app’s icon using below code:

PackageManager p = getPackageManager();
ComponentName componentName = new ComponentName(this, com.apps.MainActivity.class); // activity which is first time open in manifiest file which is declare as <category android:name="android.intent.category.LAUNCHER" />
p.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);

Here is how to bring back the app’s icon.

PackageManager p = getPackageManager();
ComponentName componentName = new ComponentName(this, com.apps.MainActivity.class);
p.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);

Important Edit:

According to docs, as of Android Q (API 29) all app icons will be visible in the launcher no matter what unless:

As of Android Q, at least one of the app’s activities or synthesized
activities appears in the returned list unless the app satisfies at
least one of the following conditions:

  • The app is a system app.
  • The app doesn’t request any permissions.
  • The tag in the app’s manifest doesn’t contain any child elements that represent app components.

Additionally, the system hides synthesized activities for some or all
apps in the following enterprise-related cases:

  • If the device is a fully managed device, no synthesized activities for any app appear in the returned list.
  • If the current user has a work profile, no synthesized activities for the user’s work apps appear in the returned list.

Best Way To Hide Application Icon From Launcher You Can Use

<category android:name="android.intent.category.LEANBACK_LAUNCHER"/>

In Your Manifest MainActivity

  <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LEANBACK_LAUNCHER"/>
        </intent-filter>
    </activity>

also add uses-feature in Manifest Tag

<uses-feature
    android:name="android.software.leanback"
    android:required="true" />

To hide icon use this:

PackageManager p = getPackageManager();
ComponentName componentName = new ComponentName(this, com.apps.MainActivity.class); 
p.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);

and to unhide icon:

PackageManager p = getPackageManager();
ComponentName componentName = new ComponentName(this, com.apps.MainActivity.class);
p.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);

IMPORTANT:
It’s somehow tricky if you need to do something with main activity in your app when it’s hidden. you will face an ActivityNotFoundException. to make it work, you should unhide icon before doing anything to your main activity and hide it again after you are finished.
simple steps:
1-call received here
2-unhide icon
3-launch main activity
4-do your things on main activity
5-hide icon again

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