NSArray从其他数组添加对象

Question

我有三个NSArray对象。 我需要将此数组的所有对象添加到名为allMyObjects的 NSArray中。

有NSArray标准解决方案，例如通过初始化方法，或者我是否需要使用自定义方法从其他数组中检索所有对象并将所有检索到的对象放到我的allMyObjects数组中？

Answer 1

不知道这对你的问题是否算是一个足够简单的解决方案，但这是做到这一点的直接方式（正如其他回答者所暗示的那样）：

NSMutableArray *allMyObjects = [NSMutableArray arrayWithArray: array1]; 
[allMyObjects addObjectsFromArray: array2]; 
[allMyObjects addObjectsFromArray: array3]; 

Answer 2

曾经看过这个，

NSArray *newArray=[[NSArray alloc]initWithObjects:@"hi",@"how",@"are",@"you",nil];
    NSArray *newArray1=[[NSArray alloc]initWithObjects:@"hello",nil];
    NSArray *newArray2=[[NSArray alloc]initWithObjects:newArray,newArray1,nil];
    NSString *str=[newArray2 componentsJoinedByString:@","];
    NSCharacterSet *doNotWant = [NSCharacterSet characterSetWithCharactersInString:@"()\n "];
    str = [[str componentsSeparatedByCharactersInSet:doNotWant] componentsJoinedByString: @""];
     NSArray *resultArray=[str componentsSeparatedByString:@","];
    NSLog(@"%@",resultArray);

O / P： -

(
    hi,
    how,
    are,
    you,
    hello
)

Answer 3

您可以在allMyObjects数组上调用addObjectsFromArray:方法。

Answer 4

这里正在添加存储代码并从数组到数组获取数据。

将数组存储到数组

NSMutableArray rowOneRoundData = [NSMutableArray arrayWithObjects: @"45",@"29",@"12",nil];
 NSMutableArray   rowTwoRoundData = [NSMutableArray arrayWithObjects: @"41",@"45",@"45",nil];
   NSMutableArray rowThreeRoundData = [NSMutableArray arrayWithObjects: @"12",@"45",@"22",nil];
   NSMutableArray rowFourRoundData = [NSMutableArray arrayWithObjects: @"45",@"12",@"61",nil];
   NSMutableArray rowFiveRoundData = [NSMutableArray arrayWithObjects: @"12",@"14",@"14",nil];
   NSMutableArray rowSixRoundData = [NSMutableArray arrayWithObjects: @"12",@"12",@"12",nil];
   NSMutableArray rowSevenRoundData = [NSMutableArray arrayWithObjects: @"12",@"36",@"83",nil];
   NSMutableArray rowEightRoundData = [NSMutableArray arrayWithObjects: @"37",@"57",@"45",nil];
   NSMutableArray rowNineRoundData = [NSMutableArray arrayWithObjects: @"12",@"93",@"83",nil];
   NSMutableArray rowTenRoundData = [NSMutableArray arrayWithObjects: @"16",@"16",@"16",nil];
   NSArray circleArray = [[NSArray alloc]initWithObjects:rowOneRoundData,rowTwoRoundData,rowThreeRoundData,rowFourRoundData,rowFiveRoundData,rowSixRoundData,rowSevenRoundData,rowEightRoundData,rowNineRoundData,rowTenRoundData, nil];

从Circle Array获取数据

for (int i= 0; i<10;i++)
{
NSArray *retriveArrar = [[circleArray objectAtIndex:i] mutableCopy];
}