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//
// ViewController.m
// block
//
// Created by zack on 16/7/14.
// Copyright © 2016年 zack. All rights reserved.
//
#import "ViewController.h"
#import "ModalVC.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
}
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
ModalVC *modalVc = [[ModalVC alloc] init];
modalVc.view.backgroundColor = [UIColor brownColor];
modalVc.block = ^(NSString *str) { //有参数无返回值
NSLog(@"%@",str);
};
// 跳转
[self presentViewController:modalVc animated:YES completion:nil];
}
@end
//
// ModalVC.h
// block
//
// Created by zack on 16/7/14.
// Copyright © 2016年 zack. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface ModalVC : UIViewController
@property (nonatomic, strong) void(^block)(NSString *str);
@end
//
// ModalVC.m
// block
//
// Created by zack on 16/7/14.
// Copyright © 2016年 zack. All rights reserved.
//
#import "ModalVC.h"
@interface ModalVC()
@property (nonatomic, strong) NSString *name;
@end
@implementation ModalVC
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
//把self.name 回传过去
self.name = @"zbc";
if (_block) {
_block(self.name );
}
[self dismissViewControllerAnimated:YES completion:nil];
}
@end
