弹框

//

//  ViewController.m

//  弹框

//

//  Created by lanou on 16/7/13.

//  Copyright © 2016年 lanou. All rights reserved.

//

//UITextfeild:怎么获取UITextFielld的文本，怎么设置输入框键盘类型，设置占位字符串

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

   [super viewDidLoad];

   // Do any additional setup after loading the view, typically from a nib.

}

- (IBAction)alertAction:(id)sender {

//    弹框：UIAlertConteoller

//    Title:大标题

//    message:小标题

//    preferredStyle:弹框样式

   UIAlertController *alertController=[UIAlertController alertControllerWithTitle:@"你有病" message:@"你有药啊" preferredStyle:UIAlertControllerStyleAlert];

   UIAlertAction *okAction=[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

//        按钮按下要做的事情

       NSLog(@"淮南师范学院");

   }];

   UIAlertAction *cancelAction=[UIAlertAction actionWithTitle:@"取消" style:(UIAlertActionStyleCancel) handler:nil];

//    给弹框添加行为

   [alertController addAction:okAction];

   [alertController addAction:cancelAction];

   [self presentViewController:alertController animated:YES completion:nil];

}

- (void)didReceiveMemoryWarning {

   [super didReceiveMemoryWarning];

   // Dispose of any resources that can be recreated.

}

@end