How to use objectAtIndex in swift
ios, objective-c, swift
Solution
In Obj-C, objectAtIndex: 2 looks like this:
[self.myArray ObjectAtIndex:2]
In Swift objectAtIndex: 2 looks like this:
self.myArray[2]
Problem
*IDE: XCODE 6 beta3 *Language: Swift + Objective C Here is my code. Objective C Code ``` @implementation arrayTest { NSMutableArray *mutableArray; } - (id) init { self = [super init]; if(self) { mutableArray = [[NSMutableArray alloc] init]; } return self; } - (NSMutableArray *) getArray { ... return mutableArray; // mutableArray = {2, 5, 10} } ``` Swift Code ``` var target = arrayTest.getArray() // target = {2, 5, 10} for index in 1...10 { for targetIndex in 1...target.count { // target.count = 3 if index == target.objectAtIndex(targetIndex-1) as Int { println("GET") } else { println(index) } } } ``` I want the following result: ``` 1 GET 3 4 GET 6 7 8 9 GET ``` But, my code gives me the error ``` libswift_stdlib_core.dylib`swift_dynamicCastObjCClassUnconditional: 0x107e385b0: pushq %rbp ...(skip) 0x107e385e4: leaq 0xa167(%rip), %rax ; "Swift dynamic cast failed" 0x107e385eb: movq %rax, 0x6e9de(%rip) ; gCRAnnotations + 8 0x107e385f2: int3 0x107e385f3: nopw %cs:(%rax,%rax) ``` . ``` if index == target.objectAtIndex(targetIndex-1) as Int { // target.objectAtIndex(0) = 2 -> but type is not integer ``` I think this code is incomplete. But I can't find the solution. Help me T T