弹框

//

//  ViewController.m

//弹框

//

//  Created by lanou on 16/7/13.

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

//

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

#import"ViewController.h"

@interfaceViewController()

@end

@implementationViewController

- (void)viewDidLoad {

[superviewDidLoad];

}

- (IBAction)alertAction:(id)sender {

//弹框：UIAlertController

//Title:大标题

//message:小标题

//preferredStyle:弹框样式

UIAlertController*alertController = [UIAlertControlleralertControllerWithTitle:@"你有病"message:@"你可以去吃药了"preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction*okAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDestructivehandler:^(UIAlertAction*_Nonnullaction) {

//按钮按下要做的事情

NSLog(@"淮南师范学院");

}];

//取消

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

//给弹框添加行为

[alertControlleraddAction:okAction];

[alertControlleraddAction:cancelAction];

[selfpresentViewController:alertControlleranimated:YEScompletion:nil];

}

- (void)didReceiveMemoryWarning {

[superdidReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end