a.h 中:
typedef void (^ReturnAmountBlock)(NSString *showText);
@interface amoutViewcontroller : UIViewController
@property (nonatomic, copy) ReturnAmountBlock returnTextBlock;
- (void)returnAmountText:(ReturnAmountBlock)block;
2:a.m 中
- (void)returnAmountText:(ReturnAmountBlock)block{
self.returnTextBlock=[block copy]; //1 创建
}
点击方法:
{
if (self.returnTextBlock != nil) {
self.returnTextBlock(amountField.text);//把值闯过去 2 赋值
}
}
pop 过去
3:b.m
amoutViewcontroller *amoutn=[amoutViewcontroller new];
[amoutn returnAmountText:^(NSString *showText) {
_donateAmounts=showText;//执行 3
[juanzhuInfoTv reloadRowsAtIndexPaths:@[_amountIndexpath] withRowAnimation:UITableViewRowAnimationNone];
}];
amoutn.hidesBottomBarWhenPushed=YES;
[self.navigationController pushViewController:amoutn animated:YES];