Objective c 在变量末尾添加int

我在一个名为的视图中有16个按钮：

@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb1;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb2;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb3;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb4;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb5;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb6;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb7;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb8;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb9;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb10;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb11;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb12;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb13;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb14;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb15;
@property (strong, nonatomic) IBOutlet WKInterfaceButton *bb16;

我想在switch语句中根据不同的条件设置图像的背景。所以我要做的是我有一个for循环

 for (int i=1; i<=16; i++) {
int val = [(NSNumber *)[self.valuesArray objectAtIndex:i] intValue];
    NSString *newString = [NSString stringWithFormat:@"bb%d",i];
    switch (val) {
                case 4:
                    [**self.bb%d** setBackgroundImageNamed:@"s"];
                    break;

                default:
                    break;
            }
    }

---

for（inti=1；i如果您不希望应用程序的结构发生太多变化，可以这样做

尝试将所有16 WKInterfaceButton对象放入initWithCoder方法中的NSMutableArray中。（如果需要，请将此数组设置为全局数组）


在switch语句的特定情况下，按索引获取对象，然后设置其背景图像

for (int i=1; i<=16; i++) {
int val = [(NSNumber *)[self.valuesArray objectAtIndex:i] intValue];
NSString *newString = [NSString stringWithFormat:@"bb%d",i];
 switch (val) {
        case 4:
            [((WKInterfaceButton *)[_btnArray objectAtIndex:i-1]) setBackgroundImageNamed:@"s"];
              break;

          default:
              break;
       }
   }

for（int i=1；i为什么您不拥有父视图的引用，并为每个按钮分配一个标记，并在需要时按标记号从引用的视图中获取它们？@Hamdullahshah使用标记进行视图标识是一种反模式。@Hamdullahshah虽然这对iOS有效，
WKInterfaceObject
没有标记属性。
for (int i=1; i<=16; i++) {
int val = [(NSNumber *)[self.valuesArray objectAtIndex:i] intValue];
NSString *newString = [NSString stringWithFormat:@"bb%d",i];
 switch (val) {
        case 4:
            [((WKInterfaceButton *)[_btnArray objectAtIndex:i-1]) setBackgroundImageNamed:@"s"];
              break;

          default:
              break;
       }
   }