Disable animation when starting LoginActivity from another activity.

LoginActivity.java

  @Override
  protected void onCreate(Bundle savedInstanceState) {
	        //Disable start animation
    overridePendingTransition(0, 0);
    getWindow().setWindowAnimations(0);
        
    super.onCreate();
  }

MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
  if (!userManager.isLoggedIn()) {
    startLoginActivityAndFinishCurrent()
  }
  
  super.onCreate();
}

private startLoginActivityAndFinishCurrent() {
		Intent intent = new Intent();
		intent.setClass(this, LoginFormActivity.class);
		intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
		intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
		startActivity(intent);
		//disable "finish" animation, should be called after startActivity
		overridePendingTransition(0, 0);

		finish();
}