objective-c - 新手求助：iOS中点击UISlider滑块拖动时数值会跳跃如何解决？

Question

用一个UILabel配合显示UISlider的数值，在IB中拖入一个UILabel和一个UISlider，设置UISlider的最小值是0，最大值是100，当前值是50，continuous属性为YES。在滑动时按住滑块的瞬间滑块会跳跃一小段，而不是从上一次滑块停止的位置开始，请问是什么原因，该如何解决？

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UILabel *sliderLabel;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.sliderLabel.text = @"50";
}

- (IBAction)sliderChanged:(UISlider *)sender {
    int progress = (int)lroundf(sender.value);
    self.sliderLabel.text = [NSString stringWithFormat:@"%d", progress];
}

@end

Answer 1

If possible, it is best to take a screenshot to better observe the phenomenon.

Answer 2

It depends on the number of steps you set

Answer 3

You are binding the event of the slider. The event must be bound to the team, otherwise problems will occur.