ios - Touchesbegan和touchesmoved函数在UIImageView上不起作用

我的FYImageSequence.m文件中有这两个函数，我从UIImageView继承了该类

@interface FVImageSequence : UIImageView

我可以将它连接到 Storyboard上的UIImageView，但是如何使下面的功能正常工作，是否应该进行任何连接。

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
if(increment == 0)
    increment = 1;
    [super touchesBegan:touches withEvent:event];

    UITouch *touch = [[event allTouches] anyObject];
    CGPoint touchLocation = [touch locationInView:self];
    previous = touchLocation.x;
}

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
[super touchesMoved:touches withEvent:event];

    UITouch *touch = [[event allTouches] anyObject];
    CGPoint touchLocation = [touch locationInView:self];
int location = touchLocation.x;

if(location < previous)
    current += increment;
else
    current -= increment;

previous = location;

if(current > numberOfImages)
    current = 0;
if(current < 0)
    current = numberOfImages;

NSString *path = [NSString stringWithFormat:@"%@%d", prefix, current];
NSLog(@"%@", path);

path = [[NSBundle mainBundle] pathForResource:path ofType:extension];


UIImage *img =  [[UIImage alloc] initWithContentsOfFile:path];

[self setImage:img];
}

最佳答案

默认情况下，UIImageView的用户交互为否。所以你需要像这样 YES

self.userInteractionEnabled = YES;

关于ios - Touchesbegan和touchesmoved函数在UIImageView上不起作用，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20486611/