Hello I have following requirement.
您好我有以下要求。
I want to call completion block after the delegate method triggered.
我想在触发委托方法后调用完成块。
Please find bellow sample snippet as example.
请以下面的示例摘要为例。
typealias CompletionBlock = (_ result: NSData?, _ error: NSError?) -> Void
func Method1(block:CompletionBlock)
{
//SOME CODE
}
func Method2
{
Completion(data,error)
}
Method2 is my delegate method. So when I call Method1 from some other class it will enter into block once pointer is on Method2
Method2是我的委托方法。因此,当我从其他类调用Method1时,一旦指针在Method2上,它将进入块
1 个解决方案
#1
7
You can create one property like this,
你可以创建一个这样的属性,
var completionBlock : CompletionBlock!
Now on Method1
现在在Method1上
func Method1(block:CompletionBlock) {
self.completionBlock = block
}
on Method2
func Method2 {
self.completionBlock(data,error)
}
I have not tested this code, but implemented like this in one of my application. Hope this may help you.
我没有测试过这段代码,但是在我的一个应用程序中实现了这样的代码。希望这可以帮到你。
#1
7
You can create one property like this,
你可以创建一个这样的属性,
var completionBlock : CompletionBlock!
Now on Method1
现在在Method1上
func Method1(block:CompletionBlock) {
self.completionBlock = block
}
on Method2
func Method2 {
self.completionBlock(data,error)
}
I have not tested this code, but implemented like this in one of my application. Hope this may help you.
我没有测试过这段代码,但是在我的一个应用程序中实现了这样的代码。希望这可以帮到你。