tabBar炫酷小动画
在UITabBarController的系统方法中获取点击tabbar的index值
- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
NSInteger index = [self.tabBar.items indexOfObject:item];
// indexFlag 可以注释，用来防止按钮重复出现动画效果
if (self.indexFlag != index) {
[self animationWithIndex:index];
}
}
实现animationWithIndex方法
- (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"];
//速度控制函数，控制动画运行的节奏
pulse.timingFunction= [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
//执行时间
pulse.duration = 0.08;
//执行次数
pulse.repeatCount= 1;
//完成动画后会回到执行动画之前的状态
pulse.autoreverses= YES;
//初始伸缩倍数
pulse.fromValue= [NSNumber numberWithFloat:0.7];
//结束伸缩倍数
pulse.toValue= [NSNumber numberWithFloat:1.3];
[[tabbarbuttonArray[index] layer]
addAnimation:pulse forKey:nil];
self.indexFlag = index;
}
//简单粗暴，粘过去就能用
拦截pop事件。。。。一会写
