POPView代码分析

TYAlertControllerDemo

1,视图展示  show 

if (self.superview == nil) {

[kCurrentWindow addSubview:self]; // 如果没有父视图的话

}

//下面是展示动画效果.

self.alpha = 0;

_alertView.transform = CGAffineTransformScale(_alertView.transform,0.1,0.1);

[UIView animateWithDuration:0.3 animations:^{

_alertView.transform = CGAffineTransformIdentity;

self.alpha = 1;

}];

2.视图隐藏

- (void)hide

{

if (self.superview) {

[UIView animateWithDuration:0.3 animations:^{

_alertView.transform = CGAffineTransformScale(_alertView.transform,0.1,0.1);

self.alpha = 0;

} completion:^(BOOL finished) {

[self removeFromSuperview];

}];

}

}