Basic AlertDialog animation

AlertDialogHelper.java

public class AlertDialogHelper {
  public static void showMyDialog(final Context context) {
    final AlertDialog dialog = new AlertDialog.Builder(context)
      .setTitle("My dialog")
      .setMessage("This is your dialog, where you explain why the user needs to press the \"yes\" here.")
      .setNeutralButton("Yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
          dialog.dismiss();
          //...
        }
      }).create();

    dialog.setOnShowListener(new DialogInterface.OnShowListener() {
      @Override
      public void onShow(DialogInterface d) {
        View view = dialog.getWindow().getDecorView();
        if (view != null) {
          view.setScaleX(0f);
          view.setScaleY(0f);
          view.animate().scaleX(1f).scaleY(1f).setInterpolator(new FastOutSlowInInterpolator()).setDuration(300).start();
        }
      }
    });
    dialog.show();
  }
}