小编Mur*_*lim的帖子

我有一个viewcontroller和uicollectionview它在里面.

我使用了以下代码,但没有可见的图像uicollectionview,只有黄色框:

myviewcontroller.h

{
IBOutlet UICollectionView *gallery1;
//IBOutlet UIImage *inimage;
NSArray *recipePhotos;
}

@property (nonatomic, retain) IBOutlet UICollectionView *gallery1;
//@property (nonatomic, retain) IBOutlet UIImage *inimage;

和myviewcontroller.m

- (void)viewDidLoad
{
[super viewDidLoad];

recipePhotos = [NSArray arrayWithObjects:@"im1.png","im2.png", "im3.png", "im4.png", "im5.png", "im6.png",  nil];

UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setItemSize:CGSizeMake(100, 100)];
[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
[self.gallery1 setCollectionViewLayout:flowLayout];
[self.gallery1 setAllowsSelection:YES];
self.gallery1.delegate=self;
}

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection: (NSInteger)section {
return recipePhotos.count;
}

- (NSInteger)numberOfSectionsInCollectionView: (UICollectionView *)collectionView {
return 1;
} …

我发现了类似的问题,但没有一个解决了我的问题.

有一些viewcontrollers和工作应用程序.

我向其中一个viewcontrollers添加了一个按钮,并绑定了一个"sampleclick"动作.此操作中没有任何内容(没有代码,没有行,只是一个空方法),应用程序与以下块崩溃:

所有输出日志:

(lldb)

和堆栈:

libobjc.A.dylib`objc_msgSend:
0x10ed08c:  movl   8(%esp), %ecx
0x10ed090:  movl   4(%esp), %eax
0x10ed094:  testl  %eax, %eax
0x10ed096:  je     0x10ed0e8                 ; objc_msgSend + 92
0x10ed098:  movl   (%eax), %edx
0x10ed09a:  pushl  %edi
0x10ed09b:  movl   8(%edx), %edi
0x10ed09e:  pushl  %esi
***0x10ed09f:  movl   (%edi), %esi   >>> crashes here with :Thread1:EXC_BAD_ACCESS*** (code=1,address: .....)
0x10ed0a1:  movl   %ecx, %edx
0x10ed0a3:  shrl   $2, %edx
0x10ed0a6:  andl   %esi, %edx
0x10ed0a8:  movl   8(%edi,%edx,4), %eax
0x10ed0ac:  testl  %eax, %eax
0x10ed0ae:  je     0x10ed0b9                 ; objc_msgSend + 45
0x10ed0b0:  cmpl …