objective-c - UIView动画改变按钮的大小

Question

我开始尝试从应用商店重新创建购买按钮，该按钮需要 2 阶段点击才能购买。我为按钮的展开设置动画。到目前为止我有这个

[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];

sender.autoresizesSubviews = NO;
sender.clipsToBounds = NO;
sender.frame = CGRectMake(63,326,200,37);

[UIView commitAnimations];

这只会导致按钮变大，它根本没有动画。我是不是做错了什么，或者其他人是否实现了这种类型的按钮行为？

编辑:

- (IBAction) buyButtonAction: (UIButton *) sender {

[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationDelay:0.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];

sender.clipsToBounds = NO;

sender.frame = CGRectMake( CGRectGetMinX( sender.frame) - 30, CGRectGetMinY(sender.frame), 200, 37);
[sender setTitle:@"Touched Touched Touched" forState:UIControlStateNormal];


[UIView commitAnimations];
}

Answer 1

您的目标是不支持 Blocks 的 iOS 吗？

我已经使用以下令人作呕的简单代码实现了“触摸时的按钮动画”。

[UIView animateWithDuration:0.5 animations:^{
    self.navigationItem.rightBarButtonItem.title = @"Quoting...";
}];

或者，如果您不支持 block (如果您走这条路，它还包括被注释掉的 block )，这段代码似乎也可以为触摸按钮设置动画:

-(IBAction) clicked:(UIButton*)sender{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationDelay:0];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
    //[UIView animateWithDuration:2.5 animations:^{

    sender.autoresizesSubviews = NO;
    sender.clipsToBounds = NO;
    sender.frame = CGRectMake(63,326,200,37);

    //sender.frame = CGRectMake( CGRectGetMinX( self.theButton.frame) - 100, CGRectGetMinY(self.theButton.frame), 300, 40);
    //[sender setTitle:@"Touched Touched Touched" forState:UIControlStateNormal];
//}];