Rumah > Soal Jawab > teks badan
想要达到present透明效果,并且采用系统自身的属性
SecondViewController *vc = [SecondViewController new];
NSString * systemVersion =[[UIDevice currentDevice]systemVersion];
CGFloat fVersion =[systemVersion floatValue];
if (fVersion < 8) {
vc.modalPresentationStyle = UIModalPresentationCurrentContext;
self.modalPresentationStyle = UIModalPresentationCurrentContext;
}else{
vc.modalPresentationStyle = UIModalPresentationOverCurrentContext;
}
vc.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentViewController:vc animated:YES completion:nil];
结果iOS8上面是没有问题的,从下面跟着背景一起上来,透明效果nice。但是我目前就一个iOS7.1.2的设备,它只会直接出来透明,不会从下面移动上来,设了别的属性从下面上来但是背景又变黑了,怎么样才能从下面上来,背景又不变黑呢。