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可可:如何在不急切进入的情况下(在用户类型上)发送行动
原标题:Cocoa: how to have textfield send action (of what user typed into it) without pressing enter

我有一个简单的可可申请,在顶端有一份可读的文本1 ,用户可以进入顶端,在底部有一条不可调和的文本2 ,意在准确显示案文1中的内容。

我的问题是,我只能拿到文本2来更新自己,因为用户新闻在进入文本1之后就进入。 如果用户不急于进入案文1,我是否有办法自动更新案文?

最佳回答

rel=“nofollow” 你可以:

  1. Declare an NSString property in your model class (which, in simple cases, could be your application delegate);
  2. Bind text1 to that string property, making sure you select ‘Continuously Updates Value’;
  3. Bind text2 to that string property.

唯一需要守则的步骤是步骤 1. 步骤2和步骤3可直接编成尼布案。

问题回答

如果您希望就每一文本改动发出通知,则在案文领域代表中处理TextDidChange:。 该代表可以成为响应这一信息的任何对象,通常使用窗户控制器。





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