Lock Task Tests LockDefaultActivity LockTaskNeverActivity LockWhitelistedActivity LockAtLaunchActivity android:lockTaskMode=\n \"default\"\n Pinnable from Overview. android:lockTaskMode=\n \"never\"\n Not Lockable or Pinnable. android:lockTaskMode=\n \"if_whitelisted\"\n Lockable if whitelisted, Pinnable.\n Use SampleDeviceOwner app to set whitelist. android:lockTaskMode=\n \"always\"\n Launches into lock mode. launch MainActivity (as activity)" Call startLockMode() Call stopLockMode() Show pinned toast message