objective-c - 转换 [NSNumber numberWithUnsignedInt :kCVPixelFormatType_32BGRA], (id)kCVPixelBufferPixelFormatTypeKey, nil]; swift

Question

这里报错。绞尽脑汁。尝试了各种组合。

Cannot find an initializer for type 'NSDictionary' that accepts an argument list of type '(object:(Int), forKey: CFString!)'

// configure the pixel format -  Obj-C
// videoOutput.videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA], (id)kCVPixelBufferPixelFormatTypeKey, nil];

// Swift       
videoOutput.videoSettings = NSDictionary(object: Int(kCVPixelFormatType_32BGRA), forKey:kCVPixelBufferPixelFormatTypeKey)

Answer 1

更新:Xcode 7.0 • Swift 2.0

videoOutput.videoSettings = NSDictionary(object: Int(kCVPixelFormatType_32BGRA), forKey: kCVPixelBufferPixelFormatTypeKey as String) as [NSObject : AnyObject]

或者只是

videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey : Int(kCVPixelFormatType_32BGRA)]