如何在ortuman / SwiftForms中的分段控件中设置默认选择

Question

我从

那里接过了问题

https://github.com/ortuman/SwiftForms/issues/147

包含的样本表单包含分段控件。我尝试使用“row.value = 1 as AnyObject”设置默认选择值，但这似乎不起作用。如何设置分段控件的默认选择。

再次感谢您的所有努力。

（由appird发布）

Answer 1

恕我直言，这是一个错误，但我有一个解决方法; - ）

只需使用外观字典设置分段控件的索引。

（来自项目示例的代码） ```的java         row = FormRowDescriptor（tag：Static.segmented，type：.segmentedControl，title：＆＃34; Priority＆＃34;）         row.configuration.selection.options =（[0,1,2,3]为[Int]）为[AnyObject]         row.configuration.selection.optionTitleClosure = {value in             警卫让选项=值为？ Int else {return＆＃34;＆＃34; }             切换选项{             案例0：                 返回＆＃34;无＆＃34;             情况1：                 返回＆＃34;！＆＃34;             案例2：                 返回＆＃34; !!＆＃34;             案例3：                 返回＆＃34; !!!＆＃34;             默认：                 返回＆＃34;＆＃34;             }         }

    //this alone has just no effect
    row.value=2 as AnyObject?

    row.configuration.cell.appearance = ["titleLabel.font" : UIFont.boldSystemFont(ofSize: 30.0), "segmentedControl.tintColor" : UIColor.red]

    //you can either set the appearance dictionary as a whole
    row.configuration.cell.appearance = ["titleLabel.font" : UIFont.boldSystemFont(ofSize: 30.0), "segmentedControl.tintColor" : UIColor.red, "segmentedControl.selectedSegmentIndex": 2 as AnyObject]

    //or set the value in the dicionary afterwards
    row.configuration.cell.appearance["segmentedControl.selectedSegmentIndex"]=2 as AnyObject

    //the best way IMHO is to set the index via the value (in that way the row.value is the model for the segmented control, like it should be)
    row.configuration.cell.appearance["segmentedControl.selectedSegmentIndex"]=row.value

    section4.rows.append(row)

```

运行该代码，分段控件预先填充您的设定值