Ios Can';t单击UIView中的按钮
我在Ios Can';t单击UIView中的按钮,ios,objective-c,uiview,Ios,Objective C,Uiview,我在self.view中创建了一个menuView,menuView有两个子视图,它们是UIView。 此UIView包含4个UIButton,但我无法单击其中任何一个userInteractionEnabledset YES,按钮的框架在视图调试中设置正确。 代码: 更新: ViewController.m: - (void)viewDidLoad { [super viewDidLoad]; LeftMenuView *leftView=[LeftMenuView creat
self.view
中创建了一个menuView,menuView有两个子视图,它们是UIView。
此UIView包含4个UIButton,但我无法单击其中任何一个userInteractionEnabled
set YES,按钮的框架在视图调试中设置正确。
代码:
更新:
ViewController.m:
- (void)viewDidLoad {
[super viewDidLoad];
LeftMenuView *leftView=[LeftMenuView createLeftMenuView];
leftView.userInteractionEnabled=YES;
self.leftView=leftView;
[self.view addSubview:leftView];
//nightButton
UIButton *nightButton=[self.leftView viewWithTag:6];
[nightButton addTarget:self action:@selector(touchButton:) forControlEvents:UIControlEventTouchUpInside];
leftView.userInteractionEnabled=YES;
//set
UIButton *settingButton=[self.leftView viewWithTag:4];
[settingButton addTarget:self.leftView action:@selector(push) forControlEvents:UIControlEventTouchUpInside];
}
**LeftMenuView.m:*这是一个UIView类。这是我设置按钮和菜单的地方
-(instancetype)initWithFrame:(CGRect)frame
{
self=[super initWithFrame:frame];
self.backgroundColor=[UIColor colorWithRed:26/256.f green:31/256.f blue:36/256.f alpha:0.7];
[self addHeaderView];
[self addButton];
return self;
}
#pragma mark -add view to menu view
-(void)addHeaderView
{
UIView *headViewUp=[[UIView alloc]init];
headViewUp.userInteractionEnabled=YES;
headViewUp.frame=CGRectMake(0, 0, yScreenWidth/2, 114);
headViewUp.backgroundColor=ColorWithRGB(26, 31, 36);
headViewUp.backgroundColor=[UIColor redColor];
self.headViewUp=headViewUp;
[self addSubview:headViewUp];
UIView *headViewDown=[[UIView alloc]init];
headViewDown.userInteractionEnabled=YES;
headViewDown.frame=CGRectMake(0, yScreenHeight-50, yScreenWidth/2, 50);
headViewDown.backgroundColor=ColorWithRGB(26, 31, 36);
self.headViewDown=headViewDown;
[self addSubview:headViewDown];
}
-(void)addButton
{
UIButton *settingButton=[self setFrame:CGRectMake(yScreenWidth*2/6, 64, yScreenWidth/6, 50 ) title:@"设置" image:@"Menu_Icon_Setting"];
settingButton.userInteractionEnabled=YES;
settingButton.tag=4;
[self resizeTextAndImageInButton:settingButton];
[self.headViewUp addSubview:settingButton];
UIButton *nightButton=[self setFrame:CGRectMake(yScreenWidth/4, 0, yScreenWidth/4, 50 ) title:@"白天" image:@"Menu_Day"];
nightButton.tag=6;
[self.headViewDown addSubview:nightButton];
}
-(UIButton *)setFrame:(CGRect)frame title:(NSString *)title image:(NSString *)imageName
{
UIButton *button=[[UIButton alloc]initWithFrame:frame];
[button setTitle:title forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];
button.titleLabel.font=[UIFont systemFontOfSize:8];
button.contentHorizontalAlignment=UIControlContentHorizontalAlignmentCenter;
return button;
}
-(void)resizeTextAndImageInButton:(UIButton *)button
{
[button setTitleEdgeInsets:UIEdgeInsetsMake(button.imageView.frame.size.height ,-button.imageView.frame.size.width, 0.0,0.0)];
[button setImageEdgeInsets:UIEdgeInsetsMake(-10, 0.0,0.0, -button.titleLabel.bounds.size.width)];
}
clilk按钮的方法不起作用。您需要使用相应的方法为按钮添加目标
[button addTarget:self
action:@selector(aButtonMethod:)
forControlEvents:UIControlEventTouchUpInside];
此代码需要以下内容
-(void)addButton
{
UIButton *settingButton=[self setFrame:CGRectMake(yScreenWidth*2/6, 64, yScreenWidth/6, 50 ) title:@"设置" image:@"Menu_Icon_Setting"];
settingButton.userInteractionEnabled=YES;
settingButton.tag=4;
[self resizeTextAndImageInButton:settingButton];
[self.headViewUp addSubview:settingButton];
UIButton *nightButton=[self setFrame:CGRectMake(yScreenWidth/4, 0, yScreenWidth/4, 50 ) title:@"白天" image:@"Menu_Day"];
nightButton.tag=6;
**[nightButton addTarget:self
action:@selector(aButtonMethod:)
forControlEvents:UIControlEventTouchUpInside];**
[self.headViewDown addSubview:nightButton];
}
或
基本上创建同一按钮两次,但仅为一组添加目标,而为另一组不将其添加到视图中您需要使用相应的方法为按钮添加目标
[button addTarget:self
action:@selector(aButtonMethod:)
forControlEvents:UIControlEventTouchUpInside];
此代码需要以下内容
-(void)addButton
{
UIButton *settingButton=[self setFrame:CGRectMake(yScreenWidth*2/6, 64, yScreenWidth/6, 50 ) title:@"设置" image:@"Menu_Icon_Setting"];
settingButton.userInteractionEnabled=YES;
settingButton.tag=4;
[self resizeTextAndImageInButton:settingButton];
[self.headViewUp addSubview:settingButton];
UIButton *nightButton=[self setFrame:CGRectMake(yScreenWidth/4, 0, yScreenWidth/4, 50 ) title:@"白天" image:@"Menu_Day"];
nightButton.tag=6;
**[nightButton addTarget:self
action:@selector(aButtonMethod:)
forControlEvents:UIControlEventTouchUpInside];**
[self.headViewDown addSubview:nightButton];
}
或
基本上,您创建了两次相同的按钮,但仅为一组添加目标,而对于另一组,您不将它们添加到视图中我查看了您的代码。您犯了一个错误,没有为“LefMenuView”设置框架。即使您没有这样做,其子视图仍然可见,但不可触摸或单击 所以试试这个。我通过添加下面的代码来运行。现在我可以看到点击操作了
Rule of thumb : if super view frame is Zero then all subviews are visible but not touchable.(Because you are touching out side of bounds).
ViewController.m
我检查了你的密码。您犯了一个错误,没有为“LefMenuView”设置框架。即使您没有这样做,其子视图仍然可见,但不可触摸或单击 所以试试这个。我通过添加下面的代码来运行。现在我可以看到点击操作了
Rule of thumb : if super view frame is Zero then all subviews are visible but not touchable.(Because you are touching out side of bounds).
ViewController.m
您在代码中设置目标时犯了错误。 请这样做
[settingButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
设置settingButton.userInteractionEnabled=YES代码>
现在按如下方式处理click事件
-(void)buttonPressed:(id) sender
{
UIButton *btn=(UIButton*) sender;
}
您在代码中设置目标时犯了错误。
请这样做
[settingButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
设置settingButton.userInteractionEnabled=YES代码>
现在按如下方式处理click事件
-(void)buttonPressed:(id) sender
{
UIButton *btn=(UIButton*) sender;
}
你预计会发生什么?在viewDidLoad
中,您从未将这些按钮添加到视图中,而在addButton
中,您没有将目标添加到这些按钮中。请正确调试。@WMios我在LeftMenuView中添加此按钮,并在viewDidLoad中添加目标。此按钮可以显示但不能单击。您的视图在scrollview中吗?@SwiftyCruz,不,它只是一个UIView。LeftMenuView有两个子视图,也是视图。您希望发生什么?在viewDidLoad
中,您从未将这些按钮添加到视图中,而在addButton
中,您没有将目标添加到这些按钮中。请正确调试。@WMios我在LeftMenuView中添加此按钮,并在viewDidLoad中添加目标。此按钮可以显示但不能单击。您的视图在scrollview中吗?@SwiftyCruz,不,它只是一个UIView。LeftMenuView有两个子视图,也是视图。我将其添加到-(void)viewDidLoad中。使用viewDidLoad中的按钮标记,您不会在addbutton方法中将按钮添加到视图中。您不会添加目标-(void)addbutton
在UIView类中。我是否应该在UIView类中添加click方法?我刚刚在viewDidLoad中添加了它,但它不能单击。我在Github中发布了项目。在你的ViewController中。m你创建了一个按钮,设置了一个选择器,然后再也不在视图中显示它,你需要将它添加到视图中,否则它将永远不会被使用。我将它添加到视图中,但它也不起作用。您的意思是UIButton*nightButton=[self.leftView viewWithTag:6];这是一个新按钮,而不是我用标记设置的按钮?我将其添加到-(void)viewDidLoad中。使用viewDidLoad中的按钮标记,您不会在addbutton方法中将按钮添加到视图中。您不会添加目标-(void)addbutton
在UIView类中。我是否应该在UIView类中添加click方法?我刚刚在viewDidLoad中添加了它,但它不能单击。我在Github中发布了项目。在你的ViewController中。m你创建了一个按钮,设置了一个选择器,然后再也不在视图中显示它,你需要将它添加到视图中,否则它将永远不会被使用。我将它添加到视图中,但它也不起作用。您的意思是UIButton*nightButton=[self.leftView viewWithTag:6];这是一个新按钮,而不是我用标签设置的按钮?