How to hide button after the button is manual added in Cocoa Touch?

如何隐藏按钮后，按钮手动添加可可联系吗？

youdao

Cocoa Touch USES a modified version of the Model-View-Controller (MVC) pattern to handle the display of their GUI.

Cocoa Touch使用了一种修改版本的MVC模式来处理GUI的显示。

youdao

A fruity and smooth-tanned Merlot, it has dark fruit aromas laced with cocoa and a touch of pepper. Works well with pork.

单宁顺滑，浓郁的黑果香气里带有些许可可豆和胡椒粉的气息。适合与猪肉、火鸡及甜或酸味菜品搭配。

youdao

Moreover, in building our family of apps, we have leveraged two different development platforms that are complementary to Cocoa Touch.

FORBES: How To Create An iPad E-Book App

Even here, actions like plugging into Facebook and interfacing with native Cocoa Touch functions are slightly different in each of these realms.

FORBES: How To Create An iPad E-Book App