我在创建UI按钮数组时遇到了困难,而不是有很多单独的按钮。我试图创建四个并拥有:
ViewController.h:
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController {
IBOutlet UIButton *b0;
IBOutlet UIButton *b1;
IBOutlet UIButton *b2;
IBOutlet UIButton *b3;
}
@property (nonatomic, strong) UIButton *b0;
@property (nonatomic, strong) UIButton *b1;
@property (nonatomic, strong) UIButton *b2;
@property (nonatomic, strong) UIButton *b3;
@end
ViewController.m:
- (IBAction)b0Click:(id)sender {
//Do something
}
- (IBAction)b1Click:(id)sender {
//Do something
}
- (IBAction)b2Click:(id)sender {
//Do something
}
- (IBAction)b3Click:(id)sender {
//Do something
}
任何帮助将不胜感激。谢谢!
答案 0 :(得分:1)
定义IBOutletCollection
:
@property (nonatomic, strong) IBOutletCollection(UIButton) buttons;
现在将所有按钮连接到此集合。
您现在可以通过以下方式访问按钮:
[self.buttons enumerateObjectsUsingBlock:^ (UIButton* button, NSUInteger index, BOOL* stop) {
//Do stuff here
}];
我必须警告你不要对数组中按钮的顺序做出假设。最好给每个按钮一个标签,然后在action方法中根据标签决定采用哪个代码路径。