方法调用中的 NSBundle 参数

发布于 2024-10-20 10:40:23 字数 524 浏览 4 评论 0原文

我必须调用这个方法：

[super initWithPNGFileName: "/Volumes/SAGITTER/Lavoro/Progetti xCode/IVBricker test/ball.png" andGame:game andCGRect:CGRectMake(x,y,16,16)];

所以当我把它放在iPhone上时，路径不对。我知道我必须使用 NSBundle，但如果我这样做，

[super initWithPNGFileName:[[NSBundle mainBundle] pathForResource:@"ball" ofType:@"png" inDirectory:@"/"] andGame:game andCGRect:CGRectMake(x,y,16,16)];

我会收到警报：“从不兼容的指针类型传递 'initWithPNGFileName:andGame:andCGRect:' 的参数 1”

我应该如何继续使用 NSBundle？

原文

I have to call this method:

[super initWithPNGFileName: "/Volumes/SAGITTER/Lavoro/Progetti xCode/IVBricker test/ball.png" andGame:game andCGRect:CGRectMake(x,y,16,16)];

So when I put this on the iPhone, the path is not right. I know I must use NSBundle but if I do

[super initWithPNGFileName:[[NSBundle mainBundle] pathForResource:@"ball" ofType:@"png" inDirectory:@"/"] andGame:game andCGRect:CGRectMake(x,y,16,16)];

I get the alert: "passing argument 1 of 'initWithPNGFileName:andGame:andCGRect:' from incompatible pointer type"

How should I proceed using NSBundle?

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帅气称霸 2024-10-27 10:40:23

if [super initWithPNGFileName: "/Volum... 是 100% 正确的代码，我认为此消息需要 C 风格字符串。
但是 [[NSBundle mainBundle] pathForResource:...] 将返回一个 NSString 对象。

尝试将 [[[NSBundle mainBundle] pathForResource:@"ball" ofType:@"png" inDirectory:@"/"] cStringUsingEncoding:NSUTF8StringEncoding] 传递给该方法。

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北方的韩爷 2024-10-27 10:40:23

您的第一个调用将 c 字符串传递给 initWithPNGFileName: 方法，而 -pathForResource: 返回 NSString。从从捆绑包获得的路径中获取 c-string 并将该字符串传递给您的方法：

[super initWithPNGFileName:[[[NSBundle mainBundle] pathForResource:@"ball" ofType:@"png" inDirectory:@"/"] UTF8String]
                   andGame:game 
                 andCGRect:CGRectMake(x,y,16,16)];

Your 1st call passes c-string to initWithPNGFileName: method, while -pathForResource: returns NSString. Get c-string from the path you get from bundle and pass that string to your method:

[super initWithPNGFileName:[[[NSBundle mainBundle] pathForResource:@"ball" ofType:@"png" inDirectory:@"/"] UTF8String]
                   andGame:game 
                 andCGRect:CGRectMake(x,y,16,16)];

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