多组件选择器视图
[英]Multiple component picker view
问题描述
I am working on project with picker view. 
我正在使用选择器视图进行项目。 I have two components in it. 我有两个组成部分。 I want to have the second component contents loaded based the selection made in the first view. 我想基于在第一个视图中所做的选择加载第二个组件的内容。
1 个解决方案
解决方案1
0 已采纳 2011-03-03 16:18:26
Your pickerView:numberOfRowsInComponent: and pickerView:titleForRow:forComponent: when called for the second component will have to check the value of the first component to determine what to return. 您的pickerView:numberOfRowsInComponent:和pickerView:titleForRow:forComponent:在调用第二个组件时，将必须检查第一个组件的值以确定返回什么。
pickerView:didSelectRow:inComponent: when called for the first component will have to call reloadComponent: on the picker to tell it to reload the data for the second component. pickerView:didSelectRow:inComponent:当第一个组件被调用时， reloadComponent:在选择器上调用reloadComponent:以告诉它重新加载第二个组件的数据。
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