Question

我的“意见”主要有两点:“观点”:一个有某些纽芬兰语、文字等的“观点”和一个窗口,所有开放式欧洲经济体系都存在。当我从IDViewController向窗户过渡时(例如当用户点击“作用”时) 我这样做了:

[window ExchangeSubviewAtIndex:0 withSubviewAtIndex:1];

也许这不是这样做的理想方式? 我不想调用国际会计师联合会所用的资源。我只想把窗户放在前面。 www.un.org/Depts/DGACM/index_french.htm

我真的要看一看一幅非常简单的黑白。

Answer 1

Have you tried plain old UIViewAnimation clause? Maybe play with view properties of hidden or alpha and if you want this to fade out to black, you need to [Window setBackgroundColor:[UIColor blackColor]]; first. Make sure the animations happen in the main thread. Sample code following with view1 being the first subview of window and view2 the other subview of window.

- (void)switchToView1 {
[UIView beginAnimations:@"fadeOut1" context:NULL];
[UIView setAnimationDuration:.5];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
view1.hidden = YES;
[UIView commitAnimations];  
}

- (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void    *)context {
if ([@"fadeOut1" isEqualToString:animationID] && [finished intValue] == 1) {
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:.5];
    view2.hidden = NO;
    [UIView commitAnimations];
}
}

如果做这种工作,则要打好uck。

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