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2013/05/27

[iOS] IBOutlet標記 - 在Controller標記出Button按鈕的參照實體


idea...



使用"Interface Builder"建立的畫面,其中有許多控制元件在其中,
但…,要怎麼才可透過程式來控制畫面上的控制元件呢?!

我是iOS工程師,
我已經有了自訂的"Controller",
但...我怎麼還是控制不到放在底層View上面的Button按鈕?!
我是最底曾的View,在我上面住著一個Button按鈕,
Hello,Button按鈕!
Hello,我是Button按鈕 ,我住在最底層的View之上


我要控制你這個Button按鈕!
將你上面的文字變成"OK",
但我到底要怎麼做才好?!
我不是有個Controller了嗎?!

iOS工程師,我是Controller,
其實Interface Builder建立的畫面都是存在xml中的,
我並不知道有Button按鈕的存在,
因此你必須在我這個Controller上產生一個插座 - IBOutlet,
讓該Interface Builder知道,
Button按鈕必須與我連繫,
這樣你就可以透過我 ,
以程式的方式變更Button按鈕上的文字了!