NSFileManager - fileExistsAtPath：？

Question

我想了解如何使用NSFileManager，但我有一个文件存在于我的桌面上，当我输入该文件的路径时，NSFileManager方法fileExistsAtath:返回False。似乎我失去了一些东西。这是代码。

NSFileManager *fileManager = [NSFileManager defaultManager]; 

//self.pathToRead is /Users/nikita/Desktop/asdf.wav 
NSString *readPath = [[NSURL fileURLWithPath:[self.pathToRead stringValue]] absoluteString]; 

//readPath is file:///Users/nikita/Desktop/asdf.wav 
if(![fileManager fileExistsAtPath:readPath]) 
    NSLog(@"File does not exist!"); 

Answer 1

变化：

NSString *readPath = [[NSURL fileURLWithPath:[self.pathToRead stringValue]] absoluteString]; 

要

NSString *readPath = [[NSURL fileURLWithPath:[self.pathToRead stringValue]] path];