我有一个iphone应用程序,我想要移动到下一个屏幕它应该点击我有的任何4或5按钮,如果用户没有点击任何按钮,那么它可能不会移动到下一个屏幕
Firs两个按钮,用户必须从中单击任何一个按钮才能移动到下一个按钮,否则
-(IBAction)locationOneButtonAction{
UIImage *buttonImage = [UIImage imageNamed:@"radiogreen.png"];
UIImage *buttonImageOne=[UIImage imageNamed:@"radiowhite.png"];
[locationOneButton setImage:buttonImage forState:UIControlStateNormal];
[locationOneButton setImage:buttonImage forState:UIControlStateNormal];
[locationThreeButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationTwoButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationFourButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationFiveButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationSixButton setImage:buttonImageOne forState:UIControlStateNormal];
resturantLocation=@"Common Man - Bedford, MA";
}
-(IBAction)locationTwoButtonAction{
UIImage *buttonImage = [UIImage imageNamed:@"radiogreen.png"];
UIImage *buttonImageOne=[UIImage imageNamed:@"radiowhite.png"];
[locationOneButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationThreeButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationTwoButton setImage:buttonImage forState:UIControlStateNormal];
[locationFourButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationFiveButton setImage:buttonImageOne forState:UIControlStateNormal];
[locationSixButton setImage:buttonImageOne forState:UIControlStateNormal];
resturantLocation=@"Common Man - Arlingtion, NY";
}
下一个按钮移动到下一个屏幕
-(IBAction)nextButton{
FoodViewController*targetController=[[FoodViewController alloc]init];
targetController.resturantLocation=resturantLocation;
[self.navigationController pushViewController:targetController animated:YES];
}
答案 0 :(得分:1)
最简单的方法是获得一个国旗.. 在.h文件中使用
BOOL _flag;
viewWillAppear
中的将其设为_flag = NO;
在每个按钮的操作上,在进入下一个屏幕之前点击是可以点击它设置YES
之类的:
-(IBAction)locationOneButtonAction{
// your stuff
_flag = YES;
}
-(IBAction)locationTwoButtonAction{
// your stuff
_flag = YES;
}
在您的下一个按钮中单击使用它
-(IBAction)nextButton{
if(_flag) {
FoodViewController*targetController=[[FoodViewController alloc]init];
targetController.resturantLocation=resturantLocation;
[self.navigationController pushViewController:targetController animated:YES];
}
}
希望这会有所帮助:)如果您正在寻找其他东西,请告诉我
答案 1 :(得分:0)
您可以使用bool标志来识别是否单击了任何按钮。如果单击任何按钮,只需将该bool标志设为true,否则将其初始化为false,当用户单击next时,只需检查该bool标志是真还是假。如果是假,则不允许用户继续。