反射禁用Smartbar的方法，注意必须开启actionbar才有效

SmartBarUtils.java

package me.imid.fuubo.utils;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.support.v4.app.FragmentActivity;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

@SuppressLint("NewApi")
public class SmartBarUtils {
    public static final void hide(FragmentActivity activity) {
        ActionBar actionBar = activity.getActionBar();
        if (actionBar == null) {
            return;
        }
        Class<? extends ActionBar> ActionBarClass = actionBar.getClass();
        Method setTabsShowAtBottom;
        try {
            setTabsShowAtBottom = ActionBarClass.getMethod("setTabsShowAtBottom", Boolean.TYPE);
            setTabsShowAtBottom.invoke(activity.getActionBar(), true);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
    }
}