UIAlertView

- (IBAction)AlertView:(id)sender {

UIAlertView *alerview=[[UIAlertView alloc]initWithTitle:@"提示" message:@"这是一个警告框" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];

// [alerview addButtonWithTitle:@"不确定"];//动态添加子按钮

NSLog(@"%d",alerview.visible);//是否可见
NSLog(@"%d",alerview.numberOfButtons);//警告框的子按钮的个数

NSLog(@"%@",[alerview buttonTitleAtIndex:0]);//指定索引的按钮的标题

/**

* UIAlertViewStyleDefault 基本样式

*UIAlertViewStyleSecureTextInput 带一个密文输入框

*UIAlertViewStylePlainTextInput 带一个明文输入框

*UIAlertViewStyleLoginAndPasswordInput 带有明文+密文样式输入框的警告框

*/

alerview.alertViewStyle=UIAlertViewStyleLoginAndPasswordInput;

UITextField *loginTF=[alerview textFieldAtIndex:0];//获取登陆的输入框

UITextField *password=[alerview textFieldAtIndex:1];//密码的输入框

loginTF.placeholder=@"账号";

password.placeholder=@"密码";

[alerview show];

}

-(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex

{
//NSLog(@"警示框已经移除");

}

-(void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex

{
// NSLog(@"警示框将要移除");

}
//根据参数buttonIndex来判断点击事件

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

switch (buttonIndex) {

case 0:

{

NSLog(@"取消");

break;

}

case 1:

{

NSLog(@"确定");

break;

}

case 2:

{

NSLog(@"3");

break;

}

case 3:

{

NSLog(@"4");

break;

}

default:

break;

}

}
//按钮组