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[英]UIImageView not responding to UIPanGestureRecognizer gesture
[英]UIImageView not responding to gestures on certain edges
我正在制作一个包含UIImageView和Label的自定义控件。 该控件的行为就像一个复选框。
这是代码:
-(instancetype) initWithTitle:(NSString *)title normalCheckBoxImage:(NSString *)normalCheckBoxImage selectedCheckBoxImage:(NSString *)selectedCheckBoxImage
{
self = [super init];
self.userInteractionEnabled = YES;
self.normalCheckBoxImageName = normalCheckBoxImage;
self.selectedCheckBoxImageName = selectedCheckBoxImage;
self.title = title;
[self setupSubViews];
[self registerGestureRecognizers];
return self;
}
-(void) registerGestureRecognizers
{
UITapGestureRecognizer *singleTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(checkBoxTapped:)];
singleTapGestureRecognizer.delegate = self;
singleTapGestureRecognizer.numberOfTapsRequired = 1;
[self.checkBoxImageView addGestureRecognizer:singleTapGestureRecognizer];
}
-(void) checkBoxTapped:(UITapGestureRecognizer *) recognizer
{
self.isChecked = !self.isChecked;
if(self.isChecked)
{
[self.checkBoxImageView setImage:[UIImage imageNamed:self.selectedCheckBoxImageName]];
}
else
{
[self.checkBoxImageView setImage:[UIImage imageNamed:self.normalCheckBoxImageName]];
}
}
-(void) setupSubViews
{
self.checkBoxImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:self.normalCheckBoxImageName]];
self.checkBoxImageView.frame = CGRectMake(0, 0, 50, 50);
NSLog(@"width = %f; height = %f",self.checkBoxImageView.frame.size.width,self.checkBoxImageView.frame.size.height);
[self.checkBoxImageView setUserInteractionEnabled:YES];
// The init with frame should be replaced by the NSConstraints
self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(self.checkBoxImageView.frame.size.width + 5, 10, 100, 20)];
self.titleLabel.text = self.title;
[self addSubview:self.checkBoxImageView];
[self addSubview:self.titleLabel];
}
我已将手势识别器附加到UIImageView。 但是由于某种原因,它只有在我靠近UIImageView的左边缘时才会触发。 我不确定自己在做什么错。 如果我触摸uIImageView的中间,则它不会执行任何操作。
这是图片:
问题是超级视图的框架不正确。 而不是宽度和高度为50 X 50,而是50 X 20。
AZCheckBox *checkbox = [[AZCheckBox alloc] initWithTitle:@"I agree" normalCheckBoxImage:@"NormalCheckBoxImage" selectedCheckBoxImage:@"SelectedCheckBoxImage"];
checkbox.frame = CGRectMake(100, 100, 200, 50);
checkbox.delegate = self;
[self.view addSubview:checkbox];
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