iOS|iOS Segment带滑动条切换效果 iOSSegment带滑动条切换效果

本文实例为大家分享了iOS Segment带滑动条切换效果的具体代码，供大家参考，具体内容如下

#import "ViewController.h" @interface ViewController () @property (nonatomic,strong) NSArray *arrTitle; @property (nonatomic,strong) UIView *flyBar; @end @implementation ViewController - (void)viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib._arrTitle = [[NSArray alloc] initWithObjects:@"标题1",@"标题2",@"标题3",@"标题4", nil]; UIView *baseView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 64)]; baseView.backgroundColor = [UIColor orangeColor]; [self.view addSubview:baseView]; for (int i=0; i<_arrTitle.count; i++) {UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(self.view.frame.size.width/_arrTitle.count*i, 20,self.view.frame.size.width/_arrTitle.count, 40)]; [btn setTitle:[_arrTitle objectAtIndex:i] forState:UIControlStateNormal]; [btn setTag:100+i]; [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside]; [baseView addSubview:btn]; }_flyBar = [[UIView alloc] initWithFrame:CGRectMake(0, baseView.frame.size.height-2, self.view.frame.size.width/_arrTitle.count, 2)]; _flyBar.backgroundColor = [UIColor redColor]; [baseView addSubview:_flyBar]; } - (void)btnClick:(id)sender{NSInteger tagNum = [sender tag]; [self updateButtonClickState:tagNum]; } //更新按钮点击效果- (void)updateButtonClickState:(NSInteger)tagNum{UIButton *currentBtn = (UIButton *)[self.view viewWithTag:tagNum]; for (int i=100; i<_arrTitle.count+100; i++) {if (i != tagNum) {UIButton *btn = (UIButton *)[self.view viewWithTag:i]; [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; }}[UIView animateKeyframesWithDuration:0.1delay:0.0options:UIViewKeyframeAnimationOptionLayoutSubviewsanimations:^{_flyBar.center = CGPointMake(currentBtn.center.x, _flyBar.center.y); }completion:^(BOOL finished) {[currentBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal]; }]; } @end