我有一个包含35个项目的NSMutableArray,我想将前10个项目复制到另一个数组中。
在向我的数组添加10个项目后,我想再次添加相同的10个项目。
请建议如何实现。
代码:
我已经以以下方式初始化具有所有图像的数组
self.arrayAllAnimalImages = [[NSMutableArray alloc] init];
[self.arrayAllAnimalImages addObject:@"bagheera.jpg"];
[self.arrayAllAnimalImages addObject:@"baloo.jpg"];
[self.arrayAllAnimalImages addObject:@"bear.jpg"];
[self.arrayAllAnimalImages addObject:@"bird.jpg"];
[self.arrayAllAnimalImages addObject:@"camel.jpg"];
[self.arrayAllAnimalImages addObject:@"cock.jpg"];
[self.arrayAllAnimalImages addObject:@"deer.jpg"];
[self.arrayAllAnimalImages addObject:@"dolphin.jpg"];
[self.arrayAllAnimalImages addObject:@"donkey.jpg"];
[self.arrayAllAnimalImages addObject:@"elephant.jpg"];
[self.arrayAllAnimalImages addObject:@"fish.jpg"];
[self.arrayAllAnimalImages addObject:@"flamigo.jpg"];
[self.arrayAllAnimalImages addObject:@"frog.jpg"];
[self.arrayAllAnimalImages addObject:@"girraf.jpg"];
[self.arrayAllAnimalImages addObject:@"hippo.jpg"];
[self.arrayAllAnimalImages addObject:@"monkey.jpg"];
[self.arrayAllAnimalImages addObject:@"octopus.jpg"];
[self.arrayAllAnimalImages addObject:@"owl.jpg"];
[self.arrayAllAnimalImages addObject:@"panda.jpg"];
[self.arrayAllAnimalImages addObject:@"parrot.jpg"];
[self.arrayAllAnimalImages addObject:@"peacock.jpg"];
[self.arrayAllAnimalImages addObject:@"penguin.jpg"];
[self.arrayAllAnimalImages addObject:@"piglet.jpg"];
[self.arrayAllAnimalImages addObject:@"polarbear.jpg"];
[self.arrayAllAnimalImages addObject:@"pumba.jpg"];
[self.arrayAllAnimalImages addObject:@"rabbit.jpg"];
[self.arrayAllAnimalImages addObject:@"redpanda.jpg"];
[self.arrayAllAnimalImages addObject:@"seahorse.jpg"];
[self.arrayAllAnimalImages addObject:@"simba.jpg"];
[self.arrayAllAnimalImages addObject:@"snake.jpg"];
[self.arrayAllAnimalImages addObject:@"starfish.jpg"];
[self.arrayAllAnimalImages addObject:@"tiger.jpg"];
[self.arrayAllAnimalImages addObject:@"tigger.jpg"];
[self.arrayAllAnimalImages addObject:@"turtle.jpg"];
[self.arrayAllAnimalImages addObject:@"whale.jpg"];
我想随机从上面的数组中选取10个项目,这里我有一个已被打乱顺序的数组
for (int i = 0; i<[arrayAllAnimalImages count] ;i++)
{
NSUInteger randomIndex = arc4random() % [arrayAllAnimalImages count];
[arrayAllAnimalImages exchangeObjectAtIndex:i withObjectAtIndex:randomIndex];
}
现在我想将这10个项目添加到我在此处初始化的空数组中:
if (LevelCount ==2)
{
self.arrayLevelImages= [[NSMutableArray alloc] init];
if ([arrayLevelImages count] > 0)
{
[arrayLevelImages removeAllObjects];
}
现在我想要添加arrayAllAnimalImages数组的前10个元素。
在添加完前10个元素后,我还想再次添加相同的前10个元素到arrayLevelImages数组中。
}
请帮忙!!!!