UIALertView的使用

//

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view from its nib

//初始化AlertView
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"AlertViewTest"
message:@"message"
delegate:self
cancelButtonTitle:@"Cancel"
otherButtonTitles:@"OtherBtn",nil];
//设置标题与信息，通常在使用frame初始化AlertView时使用
alert.title = @"AlertViewTitle";
alert.message = @"AlertViewMessage";

//这个属性继承自UIView，当一个视图中有多个AlertView时，可以用这个属性来区分
alert.tag = 0;
//只读属性，看AlertView是否可见
NSLog(@"%d",alert.visible);
//通过给定标题添加按钮
[alert addButtonWithTitle:@"addButton"];
//按钮总数
NSLog(@"number Of Buttons :%d",alert.numberOfButtons);
//获取指定索引的按钮标题
NSLog(@"buttonTitleAtIndex1:%@",[alert buttonTitleAtIndex:1]);
NSLog(@"buttonTitleAtIndex2:%@",[alert buttonTitleAtIndex:2]);
//获取取消按钮的索引
NSLog(@"cancelButtonIndex:%d",alert.cancelButtonIndex);
//获取第一个其他按钮的索引
NSLog(@"firstOtherButtonIndex:%d",alert.firstOtherButtonIndex);
//显示AlertView
[alert show];
[alert release];

}

pragma marks – UIAlertViewDelegate –

//根据被点击按钮的索引处理点击事件

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

{

//这里根据点击的NSInteger值来判断点击了那个按钮

NSLog(@”clickButtonAtIndex:%d”,buttonIndex);

}

//AlertView已经消失时执行的事件

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

{

NSLog(@”didDismissWithButtonIndex”);

}

//ALertView即将消失时的事件

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

{

NSLog(@”willDismissWithButtonIndex”);

}

//AlertView的取消按钮的事件

-(void)alertViewCancel:(UIAlertView *)alertView

{

NSLog(@”alertViewCancel”);

}

//AlertView已经显示时的事件

-(void)didPresentAlertView:(UIAlertView *)alertView

{

NSLog(@”didPresentAlertView”);

}

//AlertView即将显示时

-(void)willPresentAlertView:(UIAlertView *)alertView

{

NSLog(@”willPresentAlertView”);

}