当我尝试将对象添加到 NSMutableArray 时,我在这里收到“-[__NSArrayI addObject:]: unrecognized selector sent to instance 0x10dd15ee0”。我不确定为什么。
我有一组嵌套的自定义类。WTEvent 有一个名为 mats 的 NSMutableArray 属性,它由 WTMat 对象组成。mats 有一个称为 bouts 的 WTBout 对象的 NSMutableArray。
我希望能够在回合中更新一个回合,而让其余回合保持不变。在这里,我找到了需要分配回合的垫子。如果它没有初始化,我初始化它。然后,如果它是空的,我尝试向它添加一个 newBout,它会崩溃。
我不应该像这样更改 NSMutableArray 的元素吗?
// Locate the correct mat
WTMat* mat = [self getMatFromBoutKey:[updateData valueForKey:@"boutKey"]];
WTBout* newBout = [WTBout buildBoutFromDictionary:updateData];
// need to initialize bouts
if ([mat bouts] == nil) {
NSLog(@"Initializing bouts");
NSMutableArray* newBouts = [[NSMutableArray alloc] init ];
[mat setBouts:newBouts];
}
if ([[mat bouts] count]) {
// if bouts has bouts, then adjust the bout stack
NSLog(@"bouts is not empty");
} else {
// if bouts is empty, just add a bout
NSLog(@"Adding a newBout");
NSMutableArray* oldBouts = [mat bouts];
NSLog(@"oldbouts: %@", [oldBouts description]);
[oldBouts addObject:newBout]; // -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x10dd15ee0
}
WTMat.h:
#import <Foundation/Foundation.h>
@interface WTMat : NSObject
{
NSString* matName;
NSString* boutKey;
NSString* multicastAddress;
NSMutableArray* bouts;
}
@property (strong, nonatomic) NSString* matName;
@property (strong, nonatomic) NSString* boutKey;
@property (strong, nonatomic) NSString* multicastAddress;
@property (copy, nonatomic) NSMutableArray* bouts;
@end
日志:
2012-05-12 08:14:00.491 Wrestling Tools[12623:403] Initializing bouts
2012-05-12 08:14:00.492 Wrestling Tools[12623:403] Adding a newBout
2012-05-12 08:14:00.492 Wrestling Tools[12623:403] oldbouts: (
)
2012-05-12 08:14:00.492 Wrestling Tools[12623:403] -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x10dd15ee0
2012-05-12 08:14:00.492 Wrestling Tools[12623:403] -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x10dd15ee0
2012-05-12 08:14:00.494 Wrestling Tools[12623:403] (
0 CoreFoundation 0x00007fff96783fc6 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff92375d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff968102ae -[NSObject doesNotRecognizeSelector:] + 190
3 CoreFoundation 0x00007fff96770e73 ___forwarding___ + 371
4 CoreFoundation 0x00007fff96770c88 _CF_forwarding_prep_0 + 232
5 Wrestling Tools 0x000000010dc49343 -[WTUpdater fullUpdate:] + 835