如何在Swift中将值从自定义单元格设置/传递给ViewController

Question

In my program, there is a UISwitch in the custom UITableCell of a UITableView under a view controller. I create a variable in the view controller and try to record the amount of all UISwitch.on.

How do I set value in the view controller from the UISwitch Action ?

I wrote these code in UISwitch Action. count is the variable in the ViewController

        var rootViewController = self.window!.rootViewController as ViewController            
        rootViewController.count++
        println("count:\(rootViewController.count)")

It works in my sample program, but it has error when I wrote in my formal program. It always shows "Thread 1: EXC_BREAKPOINT (code=EXC_I386_BPT, subcode=0x0)".

Do I have another way to record the amount of UISwitch.on ??

How do I set/pass value to viewcontroller from table cell ??

Answer 1

using delegate you can do these .

• when switch is ON call delegate that is present in view controller.

• In delegate method increment count variable.