写在自己封装的TabBarViewController里即可
@interface WTTabBarViewController ()
@property (assign,nonatomic) NSInteger index;
@end
- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
NSInteger selectIndex = [tabBar.items indexOfObject:item];
if (selectIndex != _index) // 是否重复点击 (需要重复点击直接注释)
[self animationWithIndex:selectIndex];
}
- (void)animationWithIndex:(NSInteger) index {
NSMutableArray *tabbarbuttonArray = [NSMutableArray array];
for (UIView *tabBarButton in self.tabBar.subviews)
if ([tabBarButton isKindOfClass:NSClassFromString(@"UITabBarButton")])
[tabbarbuttonArray addObject:tabBarButton];
CABasicAnimation *pulse = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
pulse.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
pulse.duration = 0.2; //time
pulse.repeatCount = 1; //重复次数
pulse.autoreverses = YES; //回到初始状态
pulse.fromValue = [NSNumber numberWithFloat:0.7]; //初始伸缩倍数
pulse.toValue = [NSNumber numberWithFloat:1.3]; //结束伸缩倍数
[[tabbarbuttonArray[index] layer] addAnimation:pulse forKey:nil];
_index = index;
}
gif5新文件-2.gif
