-[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje
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[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje 意思是变的方法发送给一个不变的对象 错误修改 NSMutableArray *history; NSUserDefaults *defaults; defaults = [NSUserDefaults standardUserDefaults]; self.history = [[NSMutableArray alloc] init]; NSMutableArray *array = [defaults objectForKey:kUserDefaultsSearchHistory]; if (array) { //创建好的history不能这样赋值,应该[self.history setObject:XX forkey:XX]; self.history = array; } 改为 NSMutableArray *history; NSUserDefaults *defaults; defaults = [NSUserDefaults standardUserDefaults]; NSMutableArray *array = [defaults objectForKey:kUserDefaultsSearchHistory]; if (array) { self.history = array; }else { self.history = [[[NSMutableArray alloc] init] autorelease]; } 看reason:后面的异常说明:意思是我把一个可变量对应的方法让一个不可变量来调用mutating method(可变量对应的方法):是那些在创建后可以被更改的变量所拥有的method,比如NSMutableArray,NSMutableDictionary 等immutable object(不可改变的变量):就是那些被创建后不能被改变的变量:比如 NSArray NSDictionary等我的Exception被报出来是因为我有一行错误代码[array removeObjectInArray removeArray];这里,我的array是从一个不可改变的变量类型为NSDictionary得到的,代码为:NSMutableArray *array = [names valueForKey myKey];所以,array这里也是一个不可改变量(即使我声明用的是NSMutableArray),但显然removeObjectInArray是一个改变变量的操作,所以这是不允许的。
- -[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje
- -[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje
- __NSCFArray insertObject:atIndex:]: mutating method sent to immutable object
- '-[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable object'
- [__NSCFArray insertObject:atIndex:]: mutating method sent to immutable objec
- NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje的解决方法
- NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje的解决方法
- reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable object'
- 关于问题:reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable..
- 关于问题:reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable..
- 关于问题:reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable..
- 关于问题:reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable..
- 关于问题:reason: '* -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable..
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- reason: '-[__NSCFArray removeObjectAtIndex:]: mutating method sent to immutable object
- [__NSCFArray removeObjectAtIndex:]: mutating method sent to immutable object
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- -[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable obje
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