android hide icon

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);