iphone - 像垃圾桶动画这样的解决方案

Question

我想将未记录的垃圾桶动画放入我的程序中。电话方法是:

+ (void)animateToolbarItemIndex:(unsigned)index duration:(double)duration target:(id)target didFinishSelector:(SEL)selector;

谁能知道我应该插入什么:

• 索引
• 持续时间
• 目标
• 选择器？

我的试验不工作导致错误:

2011-11-15 16:05:20.639 CNiPhone[973:707] +[UIToolbar animateToolbarItemIndex:duration:target:didFinishSelector:]: unrecognized selector sent to class 0x3f019c08
2011-11-15 16:05:20.641 CNiPhone[973:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[UIToolbar animateToolbarItemIndex:duration:target:didFinishSelector:]: unrecognized selector sent to class 0x3f019c08'

相关代码如下:

@interface UIToolbar (privateMethods2)

+ (void)animateToolbarItemIndex:(unsigned)index duration:(double)duration target:(id)target didFinishSelector:(SEL)selector;

@end

    [UIToolbar animateToolbarItemIndex:0 duration:0.5 target:trashToolbarButton didFinishSelector:@selector(animateTrashStep2)];
    [UIToolbar commitAnimations];

- (void) animateTrashStep2 {
}

Answer 1

您不需要为此做任何未记录的事情，只需创建一个自定义 UIButton。下载UIKit Artwork Extractor并且您会找到垃圾桶动画的帧，以及 UIBarButtonItem 背景。