iphone - iPhone中的 subview 动画

Question

我正在使用下面的代码来显示隐藏我的 subview :

    [self.view addSubview:selectorView];
[selectorView setFrame:CGRectOffset([selectorView frame], 0, -selectorView.frame.size.height)];
viewVisible = NO;

- (IBAction)onButtonClick:(id)sender {
[self showHideView]; // Show and hide our imageView in an animated fashion}

- (void)showHideView {  
if (viewVisible) { // If our imageView is on screen hide the view
    [UIView beginAnimations:@"animateImageOff" context:NULL]; // Begin animation
    [selectorView setFrame:CGRectOffset([selectorView frame], 0, -selectorView.frame.size.height)]; // Move imageView off screen
    [UIView commitAnimations]; // End animations
    viewVisible = NO;
    [showHideButton setTitle:@"Show" forState:UIControlStateNormal]; // Change button title to "Show"
} else { // if our imageView is off screen show the view
    [UIView beginAnimations:@"animateImageOn" context:NULL]; // Begin animation
    [selectorView setFrame:CGRectOffset([selectorView frame], 0, selectorView.frame.size.height)]; // Move imageView on screen
    [UIView commitAnimations]; // End animations
    viewVisible = YES;
    [showHideButton setTitle:@"Hide" forState:UIControlStateNormal]; // Change button title to "Hide"

}}

如何在此代码中设置 subview Y 轴值，因为当 subview 出现在屏幕上时，它会隐藏我的屏幕标题栏而且我正在使用按钮来显示/隐藏 subview ，我还想为该按钮设置动画，以便当单击按钮，按钮的位置也应沿 Y 轴更改。

这是我想要的截图

Answer 1

尝试将您的标题 View 放在 MainView 的前面:

     [self.view bringSubviewToFront:headerView];

而图像按钮动画你可以这样做:

[UIView animateWithDuration:1.0 animations:^{
    CGFloat degrees = 180;
    CGAffineTransform transform = 
    CGAffineTransformMakeRotation(degrees/180 * 3.14);
    imageButton.transform = transform;

}];