相关疑难解决方法(0)

我有一个NSArray自定义对象都有@property name类型NSString.如何快速枚举数组并创建一个只包含name属性中具有特定单词的对象的新数组？

例如:

CustomObject *firstObject = [[CustomObject alloc] init];
firstObject.name = @"dog";

CustomObject *secondObject = [[CustomObject alloc] init];
secondObject.name = @"cat";

CustomObject *thirdObject = [[CustomObject alloc] init];
thirdObject.name = @"dogs are fun";

NSMutableArray *testArray = [NSMutableArray arrayWithObjects:firstObject,
                                                             secondObject,
                                                             thirdObject, 
                                                             nil];

// I want to create a new array that contains all objects that have the word 
// "dog" in their name property. 

我知道我可以像这样使用for循环:

NSMutableArray *newArray = [NSMutableArray array];
for (CustomObject *obj in testArray) …