UIAlertController(UIAlertView && UIActionSheet)

来源：互联网发布：百度seo是什么意思编辑：程序博客网时间：2024/05/19 20:19

参考:http://www.cocoachina.com/ios/20141126/10320.html

在IOS 9.0 后苹果官方宣布不再或不推荐使用UIAlertView和 UIActionSheet由UIAlertController进行代替两者用控制器将两者合二为一很简单方便下面就是关于UIAlertView的常用方法

- (void)viewDidLoad {    [super viewDidLoad];    // 创建一个BUTTON 点击显示弹框    UIButton *button = [UIButton buttonWithType:(UIButtonTypeCustom)];    button.frame = CGRectMake(100, 100, 100, 100);    // 给BUTTON 添加点击方法    [button addTarget:self action:@selector(actionButton:) forControlEvents:(UIControlEventTouchUpInside)];    button.backgroundColor = [UIColor blueColor];    [self.view addSubview:button];}

// button的点击方法- (void)actionButton:(UIButton *)button{    // 初始化一个一个UIAlertController    // 参数preferredStyle:是IAlertController的样式    // UIAlertControllerStyleAlert        创建出来相当于UIAlertView    // UIAlertControllerStyleActionSheet  创建出来相当于 UIActionSheet    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:@"静" preferredStyle:(UIAlertControllerStyleAlert)];        // 创建按钮    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) {        NSLog(@"注意学习");    }];    // 创建按钮    // 注意取消按钮只能添加一个    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:(UIAlertActionStyleCancel) handler:^(UIAlertAction *action) {        // 点击按钮后的方法直接在这里面写        NSLog(@"注意学习");    }];        //    // 创建警告按钮    //    UIAlertAction *structlAction = [UIAlertAction actionWithTitle:@"警告" style:(UIAlertActionStyleDestructive) handler:^(UIAlertAction *action) {    //        NSLog(@"注意学习");    //    }];//        // cancel按钮添加图片//        UIImage *accessoryImage = [UIImage imageNamed:@"取消"];//        accessoryImage = [accessoryImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];//        [cancelAction setValue:accessoryImage forKey:@"image"];    // 添加按钮 将按钮添加到UIAlertController对象上    [alertController addAction:okAction];    [alertController addAction:cancelAction];    //[alertController addAction:structlAction];        // 只有在alert情况下才可以添加文本框    [alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {        textField.placeholder = @"用户名";        textField.secureTextEntry = YES;    }];        //    // 取出文本    //    UITextField *text = alertController.textFields.firstObject;    //    UIAlertAction *action = alertController.actions.firstObject;        // 将UIAlertController模态出来相当于UIAlertView show的方法    [self presentViewController:alertController animated:YES completion:nil];}

颜色字体设置：

NSString *title = [NSString stringWithFormat:@"\n恭喜您获得%d个红包\n", 10];    NSString *msg = @"\n把红包分享给微信好友，金额随机，可用于购买雪票和雪卡";    UIAlertController * alert = [UIAlertController alertControllerWithTitle:title                                                                    message:msg                                                             preferredStyle:UIAlertControllerStyleActionSheet];    // title字号处理    NSMutableAttributedString *hogan = [[NSMutableAttributedString alloc] initWithString:title];    [hogan addAttribute:NSFontAttributeName                  value:[UIFont systemFontOfSize:27.0]                  range:NSMakeRange(0, title.length)];    [alert setValue:hogan forKey:@"attributedTitle"];    //        UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"给好友发红包" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {//        [self shareAction];    }];    [alert addAction:sureAction];            alert.view.tintColor = [UIColor purpleColor];    UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消"                                                           style:UIAlertActionStyleCancel                                                         handler:nil];    [alert addAction:cancelAction];        [self presentViewController:alert animated:YES completion:nil];

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