为了显示帮助视图,我放了一个UIImageView后面有一些UIButtons。如何禁用这些按钮的用户交互?如果我触摸按钮后面的图像,它们会响应触摸事件。
图像代码背景:
self.helpBackground = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 1024, 768)];
self.helpBackground.backgroundColor = [UIColor colorWithWhite:0 alpha:0.75];
self.helpBackground.hidden = YES;
[self.view addSubview:self.helpBackground];
我使用过self.helpBackground.userInteractionEnabled = NO;但是没有工作。
感谢。
答案 0 :(得分:0)
将按钮放在一个数组中并循环显示它们并禁用它们:
NSArray *buttonsArray = @[yourButton1, yourButton2];
for (UIButton *button in buttonsArray) {
button.enabled = NO;
}
如果您希望它们再次启用,请将enabled
设置为YES
答案 1 :(得分:0)
为helpView(imageview)添加标记并添加以下代码
for (UIView *view in self.view.subviews) {
if (view.tag != yourViewTag) {
view.userInteractionEnabled = NO;
}
}
删除帮助屏幕后,请使用以下代码
for (UIView *view in self.view.subviews) {
view.userInteractionEnabled = YES;
}
答案 2 :(得分:0)
您可以尝试以下解决方案..当出现帮助imageview时
for (UIView *view in [self.view subviews])
{
if (view isKindOfClass:[UIButton Class])
{
view.userInteractionEnabled = NO;
}
else
{
view.userInteractionEnabled = YES;
}
}
////After dismissing the help screen you can
for (UIView *view in [self.view subviews])
{
if (view isKindOfClass:[UIButton Class])
{
view.userInteractionEnabled = YES;
}
}
////(或者)只需按照以下方式执行
self.view.userInteractionEnabled=YES;
希望它可以帮助你..
答案 3 :(得分:0)
您可以创建一个方法来禁用helpBackground下所有视图的用户交互:
- (void)disableUserInteractionForViewsUnderView:(UIView *)view
{
CGRect area = view.frame;
for (UIView *underView in [self.view subviews]) {
if(CGRectContainsRect(area, underView.frame))
underView.userInteractionEnabled = NO;
}
}
之后,您可以在需要的地方拨打电话:
[self disableUserInteractionForViewsUnderView:self.helpBackground];
修改强>
我在github.com上创建了一个UIViewController
类别要点。您可以在此处找到它:https://gist.github.com/alexcristea/0244b50e503e8bf4f25d
你可以像这样使用它:
[self enumerateViewsPlacedUnderView:self.helpBackground usingBlock:^(UIView *view) {
if ([view isKindOfClass:[UIButton class]]) {
view.userInteractionEnabled = NO;
}
}];