如何将这个Objective-C代码片段写入Swift？

Question

这是改变振动的长度GBA4iOS控制器视图采取几乎一字不差的几行代码：这里

void AudioServicesStopSystemSound(int); 
void AudioServicesPlaySystemSoundWithVibration(int, id, NSDictionary *); 

@implementation vibeObject; 

- (void)vibrate 
{ 
    AudioServicesStopSystemSound(kSystemSoundID_Vibrate); 

    int64_t vibrationLength = 30; 

    NSArray *pattern = @[@NO, @0, @YES, @(vibrationLength)]; 

    NSMutableDictionary *dictionary = [NSMutableDictionary dictionary]; 
    dictionary[@"VibePattern"] = pattern; 
    dictionary[@"Intensity"] = @1; 

    AudioServicesPlaySystemSoundWithVibration(kSystemSoundID_Vibrate, nil, dictionary); 
} 

@end 

我尝试只是拒绝在任何情况下工作：

func AudioServicesStopSystemSound(Int); 
func AudioServicesPlaySystemSoundWithVibration(Int , NilLiteralConvertible, NSDictionary)(); 

func vibrate(){ 

    AudioServicesStopSystemSound(kSystemSoundID_Vibrate); 

    let vibrationLength = 30; 

    let pattern: NSArray = [false, 0, true, vibrationLength]; 

    var dictionary:NSMutableDictionary; 
    dictionary["VibePattern"] = pattern; 
    dictionary["Intensity"] = 1; 

    AudioServicesPlaySystemSoundWithVibration(kSystemSoundID_Vibrate, nil, dictionary); 
} 

当未注释时，它会崩溃SourceKit，但只在视图控制器中。当我把它放在自己的文件：

vibeObject.vibrate(<# RIGHT HERE IT TELLS ME "EXPECTED ',' SEPARATOR vibeObject#>); 

我试着尽我所能，如果你能帮助它将会是极大的赞赏

Answer 1

你的“AudioServicesPlaySystemSoundWithVibration”声明后删除组括号。

来源：

func AudioServicesPlaySystemSoundWithVibration(Int , NilLiteralConvertible, NSDictionary)(); 

要：

func AudioServicesPlaySystemSoundWithVibration(Int , NilLiteralConvertible, NSDictionary); 

Answer 2

首先，你并不需要的函数声明。 （其实我不知道，在所有的作品。）

这条线：

var dictionary:NSMutableDictionary; 

不创建一个可变的字典，你需要写：

var dictionary = NSMutableDictionary()