alertController

UIAlertController  * alert = [UIAlertControlleralertControllerWithTitle:@""message:@""preferredStyle:UIAlertControllerStyleAlert];

    

    UIAlertAction *firstAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

        flag =1;

        [selfplatAlertWithFlag:flag];

        //do something

    }];

    UIAlertAction *secondAction = [UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {

        //do something

        flag =2;

        [selfplatAlertWithFlag:flag];

    }];

    

    [alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {

        textField.placeholder =@"请输入购买数量";

        [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(alertTextFieldDidChange:)name:UITextFieldTextDidChangeNotificationobject:textField];

        textField.tag=123;

        textField.keyboardType =UIKeyboardTypeNumberPad;

       NSLog(@"textField:%@",textField.text);

        //        textField.keyboardType = UIKeyboardTypeNumberPad;

    }];

-(void)alertTextFieldDidChange:(NSNotification *)obj

{

    UITextField *textField = (UITextField *)obj.object;

   if (textField.tag==123) {

       count = [textField.textintegerValue];

    }

   elseif(textField.tag ==456)

    {

       _size = textField.text;

    }

   else

    {

       self.model.ordSpeci = textField.text;

       self.proSize = textField.text;

        NSLog(@"self.model.ordSpeci:%@",self.model.ordSpeci);

    }

}