안드로이드 슬라이드 메뉴.. 버벅임..

Question

//CLOSE 클래스
public class CloseSlide extends TranslateAnimation implements
		TranslateAnimation.AnimationListener {

	private LinearLayout mainLayout;
	int panelWidth;

	public CloseSlide(LinearLayout layout, int width, int fromXType,
			float fromXValue, int toXType, float toXValue, int fromYType,
			float fromYValue, int toYType, float toYValue) {

		super(fromXType, fromXValue, toXType, toXValue, fromYType, fromYValue,
				toYType, toYValue);

		// Initialize
		mainLayout = layout;
		panelWidth = width;
		setDuration(250);
		setFillAfter(true);
		setInterpolator(new AccelerateDecelerateInterpolator());
		setAnimationListener(this);

		// Clear left and right margins
		LayoutParams params = (LayoutParams) mainLayout.getLayoutParams();
		params.rightMargin = 0;
		params.leftMargin = 0;
		mainLayout.setLayoutParams(params);
		mainLayout.requestLayout();
		mainLayout.startAnimation(this);

	}

	public void onAnimationEnd(Animation animation) {

	}

	public void onAnimationRepeat(Animation animation) {

	}

	public void onAnimationStart(Animation animation) {

	}

}


//Open 클래스
public class OpenSlide extends TranslateAnimation implements
Animation.AnimationListener {

private LinearLayout mainLayout;
int panelWidth;

public OpenSlide(LinearLayout layout, int width, int fromXType,
	float fromXValue, int toXType, float toXValue, int fromYType,
	float fromYValue, int toYType, float toYValue) {

super(fromXType, fromXValue, toXType, toXValue, fromYType, fromYValue,
		toYType, toYValue);

// init
mainLayout = layout;
panelWidth = width;
setDuration(250);
setFillAfter(true);
setInterpolator(new AccelerateDecelerateInterpolator());
setAnimationListener(this);
mainLayout.startAnimation(this);
}

public void onAnimationEnd(Animation arg0) {

LayoutParams params = (LayoutParams) mainLayout.getLayoutParams();
params.leftMargin = panelWidth;
params.gravity = Gravity.LEFT;
mainLayout.clearAnimation();
mainLayout.setLayoutParams(params);
mainLayout.requestLayout();

}

public void onAnimationRepeat(Animation arg0) {

}

public void onAnimationStart(Animation arg0) {

}

}





// 메인클래스
private void initSildeMenu() {

		// init left menu width
		metrics = new DisplayMetrics();
		getWindowManager().getDefaultDisplay().getMetrics(metrics);
		leftMenuWidth = (int) ((metrics.widthPixels) * 0.75);

		// init main view
		ll_mainLayout = (LinearLayout) findViewById(R.id.ll_mainlayout);

		// init left menu
                ll_menuLayout = (LinearLayout) findViewById(R.id.ll_menuLayout);
		leftMenuLayoutPrams = (FrameLayout.LayoutParams) ll_menuLayout
				.getLayoutParams();
		leftMenuLayoutPrams.width = leftMenuWidth;
		ll_menuLayout.setLayoutParams(leftMenuLayoutPrams);

		// init ui
		bt_left = (Button) findViewById(R.id.bt_left);
		bt_left.setOnClickListener(new View.OnClickListener(){
		     public void onClick(View v) {
		    	 menuLeftSlideAnimationToggle();
		     }
		});
		
	
	}

	/**
	 * left menu toggle
	 */
	private void menuLeftSlideAnimationToggle() {

		if (!isLeftExpanded) {

			isLeftExpanded = true;

			new OpenSlide(ll_mainLayout, leftMenuWidth,
					Animation.RELATIVE_TO_SELF, 0.0f,
					Animation.RELATIVE_TO_SELF, 0.75f, 0, 0.0f, 0, 0.0f);

			FrameLayout viewGroup = (FrameLayout) findViewById(R.id.ll_menuLayout)
					.getParent();
			enableDisableViewGroup(viewGroup, true);

			((LinearLayout) findViewById(R.id.ll_empty))
					.setVisibility(View.VISIBLE);

			findViewById(R.id.ll_empty).setEnabled(true);
			findViewById(R.id.ll_empty).setOnTouchListener(
					new OnTouchListener() {

						@SuppressLint("ClickableViewAccessibility")
						@Override
						public boolean onTouch(View arg0, MotionEvent arg1) {
							menuLeftSlideAnimationToggle();
							return true;
						}
					});

		} else {
			isLeftExpanded = false;

			// Collapse
			new CloseSlide(ll_mainLayout, leftMenuWidth,
					TranslateAnimation.RELATIVE_TO_SELF, 0.75f,
					TranslateAnimation.RELATIVE_TO_SELF, 0.0f, 0, 0.0f, 0, 0.0f);

			
			// enable all of menu view
			FrameLayout viewGroup = (FrameLayout) findViewById(R.id.ll_menuLayout)
					.getParent();
			enableDisableViewGroup(viewGroup, true);

			// disable empty view
			((LinearLayout) findViewById(R.id.ll_empty))
					.setVisibility(View.VISIBLE);
			findViewById(R.id.ll_empty).setEnabled(true);
		}
	}


    public static void enableDisableViewGroup(ViewGroup viewGroup,
			boolean enabled) {
		int childCount = viewGroup.getChildCount();
		for (int i = 0; i < childCount; i++) {


			View view = viewGroup.getChildAt(i);
			view.setEnabled(enabled);

			if (view instanceof ViewGroup) {
				enableDisableViewGroup((ViewGroup) view, enabled);
			}
		}
    }
}




오픈, 클로즈 클래스를 만들고 메인에서 사용하는 코드인데요.
제가 슬라이드를 구현해서 열고 닫는걸 했는데.
이게 한번에 안되고 버벅되면서 되네요..
어느 부분이 문제일까요?..

로그로 확인할수가없어서...난감하네요