public class HelperUtil {

    private final HelperUtilImpl mImpl;

    public  HelperUtil (Context context) {

        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
            mImpl =  new HelperUtilImplL(context);
        } else if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
            mImpl = new HelperUtilImplKK(context);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            mImpl = new HelperUtilImplJB(context);
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
            mImpl = new HelperUtilImplICS(context);
        } else {
            mImpl = new HelperUtilImplBase(context);
        }
    }

    public void setActionBar() {
        mImpl.setActionBar();
    }

    public void setElevation(View view, float elevation){
        mImpl.setElevation(view, elevation);
    }

}