的NSMutableDictionary以作爲值的NSArray

Question

您好我是目標C新和我有很難與數組索引

我需要創建一個的NSMutableDictionary其中包含5種的RGB顏色。
每種顏色將包含隨機生成的3個組件，alpha值將固定爲1.0。
這應該在for循環中。

由端我需要有

1. 鍵：first_col _________值：0.13，0.75，0.91，1.0
2. 鍵：second_col ______值：0.25，0.06，0.48，1.0
3. 鍵：third_col ________值：0.86，0.12，0.55，1.0
4. 鍵：_______________值：
5. 鍵：_______________值：

謝謝

Answer 1

試試這個答案..

- (void)viewDidLoad 
    { 
     [super viewDidLoad]; 
     NSMutableDictionary *dictonary; 
     NSMutableArray *temp=[NSMutableArray array]; 
     for (int i=0; i<5; i++) 
     { 
      dictonary=[NSMutableDictionary dictionary]; 
      [dictonary setObject:[self getColor:i] forKey:[NSString stringWithFormat:@"color%d",i]]; 
      [temp addObject:dictonary]; 
     } 
     NSLog(@"%@",temp); 

    } 
    -(UIColor *)getColor:(NSInteger)index 
    { 
     UIColor *color; 
     color=[self returnColor:index ]; 
     return color; 
    } 
    -(UIColor *)returnColor:(int)passedIndex 
    { 


     CGFloat red = arc4random()%255; 
     CGFloat green =arc4random()%255; 
     CGFloat blue = arc4random()%255; 

     UIColor *color; 
     switch (passedIndex) { 
      case 0: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      case 1: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      case 2: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      case 3: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      case 4: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      case 5: 
       color=[UIColor colorWithRed:(red/255) green:(green/255) blue:(blue/255) alpha:1.0]; 
       break; 
      default: 
       break; 
     } 
     return color; 
    } 

Answer 2

做這樣

NSDictionary * colorsDictionary = [[NSDictionary alloc]initWithObjectsAndKeys: 
          [UIColor colorWithRed:(160/255.0) green:(97/255.0) blue:(5/255.0) alpha:1.0],@"color1", 
          [UIColor colorWithRed:(260/255.0) green:(97/255.0) blue:(105/255.0) alpha:1.0],@"color2", 
          [UIColor colorWithRed:(106/255.0) green:(97/255.0) blue:(205/255.0) alpha:1.0],@"color2", 
          [UIColor colorWithRed:(10/255.0) green:(97/255.0) blue:(55/255.0) alpha:1.0],@"color3", 
          nil];