UIImage+Label
Three.gif
@interface OPTabBarViewController ()
@property (nonatomic, assign) NSUInteger oldSelectedIndex;
@property (nonatomic, strong) NSMutableArray *tabBarMutableArray;
@end
@implementation OPTabBarViewController
#pragma mark - 添加動(dòng)畫(huà)
- (NSMutableArray *)tabBarMutableArray
{
if (_tabBarMutableArray == nil) {
_tabBarMutableArray = [NSMutableArray array];
for (UIView *view in self.tabBar.subviews) {
if ([view isKindOfClass:NSClassFromString(@"UITabBarButton")]) {
[_tabBarMutableArray addObject:view];
view.backgroundColor = KClearColor;
}
}
}
return _tabBarMutableArray;
}
#pragma mark - UITabBarDelegate
- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item
{
NSInteger selectIndex = [tabBar.items indexOfObject:item];
[self animationTabBarWithIndex:selectIndex];
}
#pragma mark - setSelectedIndex
- (void)setSelectedIndex:(NSUInteger)selectedIndex
{
[super setSelectedIndex:selectedIndex];
[self animationTabBarWithIndex:selectedIndex];
}
#pragma mark - 動(dòng)畫(huà)詳情(UIImage+Label)
- (void)animationTabBarWithIndex:(NSUInteger)index
{
if (index != self.oldSelectedIndex) {
[[self.tabBarMutableArray[self.oldSelectedIndex] layer] removeAllAnimations];
CAKeyframeAnimation *animation = [CAKeyframeAnimation animation];
animation.keyPath = @"transform.scale";
animation.values = @[@1.0,@1.15,@0.95,@1.15,@0.90,@1.10,@1.0];
animation.duration = 1.0;
animation.calculationMode = kCAAnimationCubic;
[[self.tabBarMutableArray[index] layer] addAnimation:animation forKey:nil];
self.oldSelectedIndex = index;
}
}
@end
