NSMutableArray를 다른 NSMutableArray에 추가하는 버튼의 NSMutableArray를 열거하십시오.

Question

이것은 충분히 간단하지만 빈 배열로 끝납니다.

나는 눌러 진 단추를 가지고 그 옆에있는 모든 단추를 찾고 (코드의 주석 참조) 원하는 모든 단추를 다른 NSMutableArray에 추가하려고합니다.

그런 다음 배열을 반복하고 각 버튼을 사용하여 무언가를하고 싶습니다.

아래에서 im은 배열에 발견 된 버튼을 저장하기 위해 [caualtiesArray addObject: btn];을 사용하고 있지만 그렇게하지 않는 것 같아서 그 이유를 알 수 없습니다.

-(void)detonateBomb:(UIButton*)bombDetonated{ 
    //stop the spiketimers first 
    [spikeTimer invalidate]; 
    [removeSpikeTimer invalidate]; 
    //move bomb button (non enabled and hidden) over the pressed button 
    //really we are just going to use its rect to find buttons next 
    //to the bomb since its rect is lage enough to overlap the others 
    bombRadius.center=bombDetonated.center; 
    //create an array to hold any matches 
    //we cant use the original arrary 
    //because the array would be mutated while 
    //its being enumerated 
    NSMutableArray *caualtiesArray; 
     //I did try moving this to declare caualtiesArray 
     //in the .h....which didnt fix the issue 
    //loop through all of the unpopped buttons 
    //if any intersect with "bombRadius" they are next to the bomb 
    //add them to the array 
    for(UIButton *btn in mutableBubbleArray){ 
     if (CGRectIntersectsRect(btn.frame, bombRadius.frame)) { 
      [caualtiesArray addObject: btn]; 
      //^^This seems to be the problem 
      NSLog(@"------- added button: %ld", (long)[btn tag]); 
      NSLog(@"------- foundButtons: %ld", (long)[caualtiesArray count]); 
      NSLog(@"*******"); 
     } 
    } 
    //now that we have them all 
    //pop them and add an extra 50 pts each 
    //lets see how many we have first though 
    NSLog(@"------- foundButtons: %ld", (long)[caualtiesArray count]); 
    for(UIButton *foundBtn in caualtiesArray){ 
      score+=50; 
      [self popBubble:foundBtn]; 
     NSLog(@"------- popping button: %ld", (long)[foundBtn tag]); 
     NSLog(@"*******--------------------"); 
    } 
    //add an extra 100 pts 
    score+=100; 
    //move the bomb back off-screen 
    bombRadius.center=CGPointMake(-100, -100); 
    //clean the array 
    [caualtiesArray removeAllObjects]; 
} 

가 그리고 이것이 내가 콘솔에서 무엇을 얻을 수 있습니다 :

2014-01-15 00:25:39.331 TestApp[7324:60b] ------- (pop method)POPPED A BOMB 
2014-01-15 00:25:39.333 TestApp[7324:60b] ********************************* 
2014-01-15 00:25:39.335 TestApp[7324:60b] ------- added button: 28 
2014-01-15 00:25:39.337 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.339 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.341 TestApp[7324:60b] ------- added button: 29 
2014-01-15 00:25:39.342 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.345 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.347 TestApp[7324:60b] ------- added button: 39 
2014-01-15 00:25:39.350 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.352 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.354 TestApp[7324:60b] ------- added button: 40 
2014-01-15 00:25:39.355 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.357 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.358 TestApp[7324:60b] ------- added button: 41 
2014-01-15 00:25:39.360 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.361 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.363 TestApp[7324:60b] ------- added button: 52 
2014-01-15 00:25:39.364 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.366 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.367 TestApp[7324:60b] ------- added button: 53 
2014-01-15 00:25:39.368 TestApp[7324:60b] ------- foundButtons: 0 
2014-01-15 00:25:39.370 TestApp[7324:60b] ******* 
2014-01-15 00:25:39.371 TestApp[7324:60b] ------- foundButtons: 0 

물론, 버튼을 찾는 것이 잘 작동하지만 그들은 새로운 배열에 추가되지 않습니다> 난 그냥 이유를 이해 해달라고. 이것은 그것이 작동 해야하는 것 같습니다.

Answer 1

caualtiesArray를 초기화하지 않은 것으로 보입니다.

caualtiesArray = [NSMutableArray array];