UIAlertController

最新推荐文章于 2025-05-10 11:37:51 发布

原创最新推荐文章于 2025-05-10 11:37:51 发布 · 425 阅读

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UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"标题" message:@"2222" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
    [alertView show];

 //iOS8以后
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"标题" message:@"2222222" preferredStyle:UIAlertControllerStyleAlert];
    
    //添加按钮
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"点击了确定");
    }]];
    
    //显示控制器
    [self presentViewController:alert animated:YES completion:nil];

还可以换种样式：

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"标题" message:@"2222222" preferredStyle:UIAlertControllerStyleActionSheet];
    
    //添加按钮
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"点击了确定");
    }]];
    
    //显示控制器
    [self presentViewController:alert animated:YES completion:nil];

还可以添加文本输入框：

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"标题" message:@"2222222" preferredStyle:UIAlertControllerStyleAlert];
    
    //添加按钮
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
//        NSLog(@"点击了确定");
        //拿到文本输入框的值
        NSString *name = [alert.textFields[0] text];
        NSString *pwd = [alert.textFields[1] text];
        NSLog(@"%@ %@",name,pwd);
    }]];
    
    //还可以添加文本输入框
    [alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
        textField.placeholder = @"请输入用户名";
    }];
    [alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
        textField.placeholder = @"请输入密码";
    }];
    
    //显示控制器
    [self presentViewController:alert animated:YES completion:nil];