我想在我的应用中使用BCGenieEffect。我从github下载演示示例。 https://github.com/Ciechan/BCGenieEffect
在此示例中使用了xib,并且xib使用了4个UIButtons。我想在不使用xib的情况下使用此代码,仅用于一个按钮。我不想拖动我的视图,这就是我删除该代码的原因。
我有一个UIButton:
UIButton *Pop_Hidebtn = [[UIButton alloc]initWithFrame:CGRectMake(290, 5, 15, 15)];
Pop_Hidebtn.backgroundColor = [UIColor clearColor];
[Pop_Hidebtn setImage:[UIImage imageNamed:@"close.png"] forState:UIControlStateNormal];
Pop_Hidebtn.titleLabel.textColor = [UIColor blueColor];
[Pop_Hidebtn addTarget:self action:@selector(Hidden_pop:) forControlEvents:UIControlEventTouchUpInside];
[popup_View addSubview:Pop_Hidebtn];
-(void)Hidden_pop:(UIButton *)sender{
[self genieToRect:sender.frame edge:BCRectEdgeBottom];
}
// I modified this and it says-> UIButton may not respond to enumerateobjectsusingblock
// And Crash
- (void) genieToRect: (CGRect)rect edge: (BCRectEdge) edge {
NSTimeInterval duration = 3.0;
CGRect endRect = CGRectInset(rect, 5.0, 5.0);
[help_Button enumerateObjectsUsingBlock:^(UIButton *button, NSUInteger idx, BOOL *stop) {
help_Button.enabled = NO;
}];
if (self.viewIsIn) {
[popup_View_under2 genieOutTransitionWithDuration:duration startRect:endRect startEdge:edge completion:^{
popup_View_under2.userInteractionEnabled = YES;
[help_Button enumerateObjectsUsingBlock:^(UIButton *button, NSUInteger idx, BOOL *stop) {
help_Button.enabled = YES;
}];
}];
} else {
popup_View_under2.userInteractionEnabled = NO;
//UIButton may not respond to enumerateobjectsusingblock
// Crash on this line
[popup_View_under2 genieInTransitionWithDuration:duration destinationRect:endRect destinationEdge:edge completion: ^{
[help_Button enumerateObjectsUsingBlock:^(UIButton *button, NSUInteger idx, BOOL *stop) {
button.enabled = YES;
}];
}];
}
self.viewIsIn = ! self.viewIsIn;
}
我该如何解决这个问题?
答案 0 :(得分:0)
- (void)enumerateObjectsUsingBlock:(void (^)(id obj, NSUInteger idx, BOOL *stop))block
是NSArray
,NSOrderedSet
和NSSet
类的实例方法。因此,如果您根据我假设的UIButton
实例调用该方法,它将无效。
该方法旨在用于枚举集合中的对象。因此,您必须以这种方式将按钮放在NSArray
(或NSMutableArray
)中:
[myButtons enumerateObjectsUsingBlock:^(UIButton *aButton, NSUInteger idx, BOOL *stop) {
aButton.enabled = NO;
}];
将为myButtons
数组中的每个对象调用该块,接收对象本身(在这种情况下,它将被转换为UIButton *
),所述对象的索引和指针到BOOL
,您可以使用它来提前退出循环。
请注意,既然你说你只使用一个按钮,为什么不删除那些方法调用而只是使用
helpButton.enabled = YES;
没有枚举?