按钮操作没有响应iphone
问题描述:
当我按nextButton,这是UIBarButton。然后关联的动作不执行。按钮操作没有响应iphone
UIButton *nextButton1=[UIButton buttonWithType:UIButtonTypeCustom];
[nextButton1 setBackgroundImage:[UIImage imageNamed:@"next.png"] forState:UIControlStateNormal];
[nextButton1 addTarget:self action:@selector(goToItems) forControlEvents:UIControlEventTouchUpOutside];
[nextButton1 sizeToFit];
UIBarButtonItem *nextButton=[[UIBarButtonItem alloc]initWithCustomView:nextButton1];
self.navigationItem.rightBarButtonItem=nextButton;
答
[nextButton1 addTarget:self action:@selector(goToItems) forControlEvents:UIControlEventTouchUpInside];
你逝去的UIControlEventTouchUpOutside
,应该是UIControlEventTouchUpInside
答
你通过了forcontrolevent作为UIControlEventTouchUpoutside的而不是使用
[nextButton1 addTarget:self action:@selector(goToItems) forControlEvents:UIControlEventTouchUpInside];
[nextButton1 addTarget:self action:@selector(goToItems) forControlEvents:UIControlEventTouchUpInside];
答
明显的错误是UIControlEventTouchUpOutside
,你应该将其更改为UIControlEventTouchUpInside
。
但是不用制作一个单独的按钮,然后将其作为视图分配给UIBarButtonItem
,您可以简单地制作具有所需图像的UIBarButtonItem
,并将所需的操作与其关联。
例如:
UIBarButtonItem *nextButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"next.png"]
style:UIBarButtonItemStylePlain
target:self
action:@selector(goToItems)];
self.navigationItem.rightBarButtonItem = nextButton;
[nextButton release];
哦,感谢它是由错误 – 2012-07-06 10:38:28
@IdreesAshraf非常欢迎:)也许你可以接受的答案?谢谢。 – janusbalatbat 2012-07-06 10:40:05