ios - 计算 .plist 字典项数(iOS SDK)

Question

这就是原始 plist 的样子:

{
    authorLastName = Doe;
    authorFirstName = Jane;
    imageFilePath = "NoImage.png";
    title = "Account Test 1";
    year = 2009;
},
{
    authorLastName = Doe;
    authorFirstName = John;
    imageFilePath = "NoImage.png";
    title = "Account Test 2";
    year = 2009;
},

我想计算 plist 的总项目数，并将其显示为:“4 个帐户”。

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                     NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *myPlistPath = [documentsDirectory
                         stringByAppendingPathComponent:@"Accounts.plist"]; 
NSDictionary *plistDict = [[NSDictionary alloc] initWithContentsOfFile:myPlistPath]; 

NSArray *array = [[plistDict objectForKey:0]
                      sortedArrayUsingSelector:@selector(compare:)]; 

return([NSString stringWithFormat:@"%d Accounts", [array count]]);

但是，结果返回0。我希望它返回字典中的项目数量。

Answer 1

您的 return 语句正在转发字典第一个元素中的项目数，而不是字典本身的项目数。相反，我认为你想要的是这样的:

return [NSString stringWithFormat:@"%d Accounts", [plistDict count]];