A hack to add the translation to the action bar (excerpt from https://github.com/umano/AndroidSlidingUpPanel/tree/master/demo)

gistfile1.java

public void setActionBarTranslation(float y) {
        // Figure out the actionbar height
        int actionBarHeight = 0;
        TypedValue tv = new TypedValue();
        if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
            actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());
        }
        // A hack to add the translation to the action bar
        ViewGroup content = ((ViewGroup) findViewById(android.R.id.content).getParent());
        int children = content.getChildCount();
        for (int i = 0; i < children; i++) {
            View child = content.getChildAt(i);
            if (child.getId() != android.R.id.content) {
                if (y <= -actionBarHeight) {
                    child.setVisibility(View.GONE);
                } else {
                    child.setVisibility(View.VISIBLE);
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
                        child.setTranslationY(y);
                    } else {
                        com.nineoldandroids.view.animation.AnimatorProxy.wrap(child).setTranslationY(y);
                    }
                }
            }
        }
    }

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { child.setTranslationY(y); } else { com.nineoldandroids.view.animation.AnimatorProxy.wrap(child).setTranslationY(y); }
是多余的，sdk<11 根本就木有actionbar