鸿蒙闪屏页的实现怎么实现？

/**
 * 启动页
 */
public class LauncherAbility extends Ability {
    Timer timer;

    @Override
    public void onStart(Intent intent) {
        getWindow().addFlags(WindowManager.LayoutConfig.MARK_TRANSLUCENT_NAVIGATION);
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_launcher);

        timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                // 跳转主页
                goToMain();
            }
        }, 2000);
    }

    @Override
    protected void onStop() {
        super.onStop();
        timer.cancel();
    }

    /**
     * 跳转主页
     */
    private void goToMain() {
        Intent mIntent = new Intent();
        Operation operation = new Intent.OperationBuilder()
                .withBundleName(getBundleName())
                .withAbilityName(MainAbility.class)
                .build();
        mIntent.setOperation(operation);
        startAbility(mIntent);
        terminateAbility();
    }
}
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