Objective c 为什么我的NSArray没有对象？

我试图将一些UIImage对象添加到数组中，但它不起作用。我尝试将图像添加到NSArray，但由于某种原因，阵列没有保存任何内容

这是我的密码：

UIImage *a = [UIImage imageWithContentsOfFile:@"A.jpg"];
UIImage *b = [UIImage imageWithContentsOfFile:@"B.jpg"];
UIImage *c = [UIImage imageWithContentsOfFile:@"C.jpg"];
UIImage *d = [UIImage imageWithContentsOfFile:@"D.jpg"];
UIImage *e = [UIImage imageWithContentsOfFile:@"E.jpg"];
UIImage *f = [UIImage imageWithContentsOfFile:@"F.jpg"];

self.imageArray = [NSArray arrayWithObjects:a, b, c, d, e, f, nil];

int firstArrayCount = [self.array count];   
NSLog(@"%d objects in array 1", firstArrayCount);

int secondArrayCount = [self.imageArray count];
NSLog(@"%d objects in array 2", secondArrayCount);

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请尝试使用“s

+imageNamed:

加载图像。比如说,

UIImage *a = [UIImage imageNamed:@"A"];

检查所有这些图像是否已添加到项目中，而不仅仅是它们是否显示在XCode窗格中。否则，仅假设此代码不在同一范围内，请检查

NSArray

属性是否为retain而不是assign

UIImage *a = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"A" ofType:@".jpg"]];
UIImage *b = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"B" ofType:@".jpg"]];
UIImage *c = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"C" ofType:@".jpg"]];
UIImage *d = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"D" ofType:@".jpg"]];
UIImage *e = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"E" ofType:@".jpg"]];
UIImage *f = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"F" ofType:@".jpg"]];

NSArray *imageArray = [NSArray arrayWithObjects:a, b, c, d, e, f, nil];

int secondArrayCount = [imageArray count];
NSLog(@"%d objects in array 2", secondArrayCount);

或

UIImage *a = [UIImage imageNamed:@"A.jpg"];
UIImage *b = [UIImage imageNamed:@"B.jpg"];
UIImage *c = [UIImage imageNamed:@"C.jpg"];
UIImage *d = [UIImage imageNamed:@"D.jpg"];
UIImage *e = [UIImage imageNamed:@"E.jpg"];
UIImage *f = [UIImage imageNamed:@"F.jpg"];

NSArray *imageArray = [NSArray arrayWithObjects:a, b, c, d, e, f, nil];

int secondArrayCount = [imageArray count];
NSLog(@"%d objects in array 2", secondArrayCount);

---

是否确实没有图像是

nil

？[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:@“A”of type:@.jpg]]；