iOS中UIAlertView的使用方法

UIAlertView * alertView=[[UIAlertView
alloc]initWithTitle:nil

message:@"真的要退出？"

delegate:self

cancelButtonTitle:@"确定"

otherButtonTitles:@"取消",
nil];

alertView.tag=11;

[alertView show];

然后实现

UIAlertViewDelegate的代理方法

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

//执行的代码

}

2.3带输入框的Alert

//登陆弹出框：一个文本输入框，一个密码框

UIAlertView *alertView = [[UIAlertView alloc]

initWithTitle:@"Password" message:@"Please enter your credentials" delegate:self

cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];

//设置AlertView的样式

[alertView setAlertViewStyle:UIAlertViewStyleLoginAndPasswordInput];

[alertView show];

//登陆弹出框：一个文本输入框，一个密码框

UIAlertView *alertView = [[UIAlertView alloc]

initWithTitle:@"Password" message:@"Please enter your credentials" delegate:self

cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];

//设置AlertView的样式

[alertView setAlertViewStyle:UIAlertViewStyleLoginAndPasswordInput];

[alertView show];