objective-c - 如何在Objective-C中解析对象数组？

Question

来自C++，这是我的问题:

我已经创建了这种类型的对象:

    Size *one = [[Size alloc] initWithX: 3 andY: 1];
    Size *two = [[Size alloc] initWithX: 4 andY: 7];
    // etc...
    Size *thirtythree = [[Size alloc] initWithX: 5 andY: 9];

(每个对象都有 @property int x;和 @property int y;。)

我已经存储在数组中，如下所示:

NSArray *arrayOfSizes;

arrayOfSizes = [NSArray arrayWithObjects:one,two,three,four,five,six,
                seven,eight,nine,ten,eleven,twelve,thirteen,
                fourteen,fifteen,sixteen,seventeen,eighteen,
                nineteen,twenty,twentyone,twentytwo,
                twentythree,twentyfour,twentyfive,twentysix,
                twentyseven,twentyeight,twentynine,thirty,
                thirtyone,thirtytwo,thirtythree nil];

现在我有一个类型的对象:

Myobject *myObject = [[Myobject alloc] initWithX: 5 andY: 3];

还有一个 @property int x;和 @property int y; ...

并且我想将其值与在数组中找到的对象的值进行比较，直到找到具有相似值的数组对象。。但是我不知道如何在Obj-C中做到这一点。 (在C++中，我只想将 vector v;与 v.size();和 v[x]; ..etc ...一起使用。)

这是我正在寻找的.. :)

while( !wholeOfArrayOfSizesChecked && !found)
{
    if ( // x & y of object in array is equal to x & y of myObject )
    {
        found = YES;
    }
    else if( // whole of array checked)
    {
       wholeOfArrayOfSizesChecked = YES;
    }
    else
    { 
      //move on to the next object of the array..
    }
}

在此先感谢您的帮助!

Answer 1

仅使用您给定的结构。虽然有更聪明的方法:)

wholeOfArrayOfSizesChecked = NO; 
int currObj = 0  
while( !wholeOfArrayOfSizesChecked && !found)
{
    Size *current = (Size *)[arrayOfSizes objectAtIndex:i];
    if (myObject.x == current.x && myObject.y == current.y)
    {
        found = YES;
    }
    else if(currObj == [arrayOfSizes count] -1 )
    {
       wholeOfArrayOfSizesChecked = YES;
    }
    else
    { 
      currObj++;
    }
}