UIPickerView 按标题设置选定行 [英] UIPickerView Set Selected Row by Title

问题描述

我正在尝试从包含位置列表的 UIPickerView 的代码中选择一行.选择器视图的内容在运行时从服务器加载，我有用户上次登录时使用的位置.

I'm trying to select a row from code of a UIPickerView that holds a list of locations. The pickerview's content is loaded at runtime from a server, and I have the location the user used when they logged in last.

我知道我可以使用 [pickerview selectrow:int ...] 通过数字选择一行，但我需要将前一个位置与选择器中的位置匹配才能获得该行数字.我一直无法找到帮助我做到这一点的方法.

I know I can use [pickerview selectrow:int ...] to select a row by the number, but I need to match the previous location to the location in the picker to get the row number. I haven't been able to find method that helps me do that.

如果我一直不清楚，我实际上是在尝试通过行的标题在 UIPickerView 中找到元素的行号.

If I have been unclear, I am essentially trying to find the row number of an element in a UIPickerView via the title of the row.

谢谢！

推荐答案

如果你的选择器只显示 NSStrings 你可以这样做.

If your picker only shows NSStrings you could do this.

NSUInteger index = [locationsArray indexOfObject:@"London"];

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