ios – UIView动画不起作用

概述我想在myView显示器上进行settingView并使用动画消失. 我调用-showSettingView if(！self.settingView)：动画正常工作. 但是,如果(self.myView)：settingView消失WITHOUT动画. 如何修复它以使settingView与动画一起消失？ @property (nonatomic, strong) UIView *myView; 我想在myVIEw显示器上进行settingVIEw并使用动画消失.
我调用-showSettingVIEw
if(！self.settingVIEw)：动画正常工作.
但是,如果(self.myVIEw)：settingVIEw消失WITHOUT动画.
如何修复它以使settingVIEw与动画一起消失？

@property (nonatomic,strong) UIVIEw *myVIEw;@property (nonatomic,strong) UIVIEw *settingVIEw;- (voID)vIEwDIDLoad{    [super vIEwDIDLoad];    UIbarbuttonItem* settingbutton = [[UIbarbuttonItem alloc]initWithbarbuttonSystemItem:UIbarbuttonSystemItemAction target:self action:@selector(showSettingVIEw)];    self.navigationItem.rightbarbuttonItem = settingbutton;}- (voID)showSettingVIEw{    self.myVIEw = [[UIVIEw alloc]initWithFrame:CGRectMake(0,568,320,480)];    self.myVIEw.opaque = NO;    self.myVIEw.backgroundcolor = [UIcolor colorWithWhite:1.0f Alpha:0.0f];    [self.vIEw addSubvIEw:self.myVIEw];    if (!self.settingVIEw) {        self.settingVIEw = [[UIVIEw alloc]initWithFrame:CGRectMake(0,568)];        self.settingVIEw.backgroundcolor = [UIcolor blackcolor];        [self.myVIEw addSubvIEw:self.settingVIEw];        [UIVIEw animateWithDuration:0.3f                              delay:0.0f                            options:UIVIEwAnimationoptionTransitionFlipFromBottom                         animations:^{self.myVIEw.frame = CGRectMake(0,60,480);}                         completion:^(BOol finished) {}         ];    } else if (self.myVIEw){        self.myVIEw.frame = CGRectMake(0,480);        [UIVIEw animateWithDuration:0.3f                              delay:0.0f                            options:UIVIEwAnimationoptionCurveEaseIn                         animations:^{self.myVIEw.frame = CGRectMake(0,480);}                         completion:^(BOol finished) {}         ];        [self.settingVIEw removeFromSupervIEw];        self.settingVIEw = nil;        [self.myVIEw removeFromSupervIEw];    }}

谢谢.

解决方法 您可以在动画开始之前取消设置视图.试试这个：

[UIVIEw animateWithDuration:0.3f                          delay:0.0f                        options:UIVIEwAnimationoptionCurveEaseIn                     animations:^{self.myVIEw.frame = CGRectMake(0,480);}                     completion:^(BOol finished) {                        [self.settingVIEw removeFromSupervIEw];                        self.settingVIEw = nil;                        [self.myVIEw removeFromSupervIEw];                     }     ];

*另外：如果您使用的是自动布局,则需要执行以下选项之一：

A.在块之前设置myVIEw的约束而不是框架,然后在块内部仅调用layoutIfNeeded：.

B.在动画块中设置transform属性.

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