屏幕快照 2019-01-07 上午10.32.32.png
在上面定义全局
{
UIView *view;
UIButton *btn;
}
现在viewDidLoad里写
self.navigationItem.title = @"导航";
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@">" style:UIBarButtonItemStyleDone target:self action:@selector(qq)];
view = [[UIView alloc]initWithFrame:CGRectMake(200, 80, 200, 140)];
view.backgroundColor = [UIColor greenColor];
view.hidden = YES;
[self.view addSubview:view];
然后在外边写
-(void)qq{
view.hidden = NO;
btn = [[UIButton alloc]initWithFrame:CGRectMake(10, 0, 40, 40)];
[btn setTitle:@"❌" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(qq1) forControlEvents:UIControlEventTouchUpInside];
[view addSubview:btn];
}
-(void)qq1{
view.hidden = YES;
}
