斯威夫特2:对于字典来说，没有更多上下文，表达类型是模棱两可的 [英] Swift 2: Type of expression is ambiguous without more context, for a dictionary

问题描述

为什么编译器会为以下试图创建字典的代码引发错误?您将如何解决此代码?

Why is the compiler throwing an error for the following code that attempts to create a dictionary? How would you fix this code?

let options = [
  kCVPixelBufferCGImageCompatibilityKey: true,
  kCVPixelBufferCGBitmapContextCompatibilityKey: true]

我已经浏览了所有其他相关问题，但都遇到了同样的错误，但是找不到解决方法.

I've looked through all of the other related questions with this same error and have not been able to find a solution.

推荐答案

如何

let options : [NSObject : AnyObject] = [
    kCVPixelBufferCGImageCompatibilityKey: true,
    kCVPixelBufferCGBitmapContextCompatibilityKey: true]

[NSObject : AnyObject]等同于Objective-C中的NSDictionary.您正在使用的库要求该库属于这种类型.

[NSObject : AnyObject] is the equivalent to NSDictionary in Objective-C. The library you're using requires it to be of this type.

这篇关于斯威夫特2:对于字典来说，没有更多上下文，表达类型是模棱两可的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！