选择器，设置启动/默认行？ [英] Picker, setting startup / default row?

问题描述

有没有人知道一种方式，我可以设置我的选择器默认/启动与行值不正确的数据源的开始？如果可能，我想让选择器以一个中间值开始，这样我就不会在顶部得到空白的白色区域。

EDIT_001

添加了以下行到viewDidLoad，这似乎是正在建立UI时调用这些行的最佳位置。

  [doublePicker selectRow：2 inComponent：kCoffeeIndex animated：NO]; 
 [doublePicker selectRow：2 inComponent：kCakeIndex animated：NO]; 
  

gary

解决方案

使用-selectRow：inComponent：animated：

Does anyone know a way that I can set my picker to default / startup with row values that are not right at the start of my datasource? If possible I would like the picker to start with a middle value so I don't get the blank white area at the top.

EDIT_001

Added the following lines to viewDidLoad, which seems to be the best place to call these as the UI is being built.

[doublePicker selectRow:2 inComponent:kCoffeeIndex animated:NO];
[doublePicker selectRow:2 inComponent:kCakeIndex animated:NO];

gary

解决方案

Use -selectRow:inComponent:animated: for that.

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