UI-UIAlertView

本文主要是介绍UI-UIAlertView，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

#pragma mark - 1.基本用法UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Test" message:@"显示内容" delegate: nil cancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];[alertView show];

#pragma mark - 2.多个按钮UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Test2" message:@"message" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:@"确定",@"其他", nil];[alertView show];

#pragma mark - 3.一些系统样式参数/*UIAlertViewStyle这个枚举提供了几个样式1 typedef NS_ENUM(NSInteger, UIAlertViewStyle) {2 UIAlertViewStyleDefault = 0,　　　　　　　　　　 缺省样式3 UIAlertViewStyleSecureTextInput,　　　　　　　　密文输入框4 UIAlertViewStylePlainTextInput,　　　　　　　　 明文输入框5 UIAlertViewStyleLoginAndPasswordInput　　　　　登录用输入框，有明文用户名，和密文密码输入二个输入框}*/UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"title" message:@"message" delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:@"ok", nil];[alertView show];[alertView setAlertViewStyle:UIAlertViewStyleLoginAndPasswordInput];

#pragma mark - 4. 判断用户点击了哪个按钮

首先遵守协议

@interface AppDelegate ()<UIAlertViewDelegate>@end

方法：

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{   //判断点击了哪个按钮NSLog(@"%ld",buttonIndex);//如果是有输入框的if (buttonIndex == 1) {NSLog(@"Login = %@",[alertView textFieldAtIndex:0].text);NSLog(@"PassWorld = %@",[alertView textFieldAtIndex:1].text);}else{NSLog(@"退出");}}
- (void)buttonpressed{UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Test" message:@"显示内容" delegate: self cancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];[alertView show];[alertView setAlertViewStyle:UIAlertViewStyleLoginAndPasswordInput];
}

实现代码：（点击button触发 ）

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];button.frame = CGRectMake(0, 0, 200, 30);button.center = CGPointMake(_window.frame.size.width/2, _window.frame.size.height/2);[button setTitle:@"button" forState:UIControlStateNormal];[button addTarget:self action:@selector(buttonpressed) forControlEvents:UIControlEventTouchUpInside];[_window addSubview:button];

#pragma mark - 5.添加子视图(IOS7不能添加子视图了)
//         UIAlertView *view = [[UIAlertView alloc]initWithTitle:@"请等待"
//                                                                                  message:nil
//                                                                                 delegate:nil
//                                                                        cancelButtonTitle:nil
//                                                                        otherButtonTitles:nil,
//                                                                                          nil];
//    
//         UIActivityIndicatorView *activeView = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
//         activeView.center = CGPointMake(view.bounds.size.width/2.0f, view.bounds.size.height-40.0f);
//         [activeView startAnimating];
//         [view addSubview:activeView];
//    
//         [view show];

这篇关于UI-UIAlertView的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！

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