2、模态视图
ModelViewController * modelVC = [[ModelViewController alloc] init];
modelVC.delegate = self;
//设置模态视图的转场动画
// modelVC.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
//展示模态视图
[self presentViewController:modelVC animated:YES completion:^{
// NSLog(@"%@",self.presentedViewController); 有值
// NSLog(@"%@",self.presentingViewController); nil
}];
- (void)showName:(NSString *)title {
[self.button setTitle:title forState:UIControlStateNormal];
}
@protocol ModelViewControllerDelegate <NSObject>
- (void)showName:(NSString *)title;
@end
@property (nonatomic, weak) id<ModelViewControllerDelegate> delegate;
//传值方法1
- (void)doAction:(UIButton *)button {
// NSLog(@"model - %@",self.presentedViewController); nil
// NSLog(@"model - %@",self.presentingViewController); 有值
ViewController * vc = (ViewController *)self.presentingViewController;
[vc.button setTitle:@"haha" forState:UIControlStateNormal];
[self dismissViewControllerAnimated:YES completion:nil];
}
//传值的方法2
- (void)doAction2:(UIButton *)button {
if ([self.delegate respondsToSelector:@selector(showName:)]) {
[self.delegate showName:@"haha"];
}
[self dismissViewControllerAnimated:YES completion:nil];
ViewController * viewc = [[ViewController alloc] init];
viewc.button = nil;
}