到新公司后，想养成一个好习惯，写博客，多做分享，就根据自己平时的工作内容来做分享吧

场景是有一个UIViewController ，点一个按钮 弹出一个半透明框，然后点击框上确认按钮，框消失

-(IBAction)buttonClick:(id)sender

{

UIButton * uiButton = (UIButton *)sender;

if(uiButton.tag ==1){

//UIViewController

TransparentController * transparentVC = [[TransparentController alloc] initWithNibName:@"TransparentController" bundle:nil];

if ([[[UIDevice currentDevice] systemVersion] floatValue]>=8.0) {

transparentVC.modalPresentationStyle=UIModalPresentationOverCurrentContext;

}else{

self.modalPresentationStyle=UIModalPresentationOverFullScreen;

}

[self presentViewController:transparentVC animated:YES completion:nil];

}else{

//UIView

UIViewAlert *alert = [UIViewAlert nibInstance];

[alert show];

}

}

具体的demo，我往后后整理出来

github地址:

https://github.com/likaiwork/TransparentViewDemo