scrollview 的各类代理方法汇总

Tasks



Creating Alert Views

– initWithTitle:message:delegate:cancelButtonTitle:otherButtonTitles:

Setting Properties

delegate property

title property

message property

visible property

Configuring Buttons

– addButtonWithTitle:

numberOfButtons property

– buttonTitleAtIndex:

cancelButtonIndex property

firstOtherButtonIndex property

Displaying

– show

Dismissing

– dismissWithClickedButtonIndex:animated: 无例

*/



// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad {

//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(@"numberOfButtons:%d",alert.numberOfButtons);



//获取指定索引的按钮的标题

NSLog(@"buttonTitleAtIndex:%@",[alert buttonTitleAtIndex:2]);



//获得取消按钮的索引

NSLog(@"cancelButtonIndex:%d",alert.cancelButtonIndex);



//获得第一个其他按钮的索引

NSLog(@"firstOtherButtonIndex:%d",alert.firstOtherButtonIndex);



//显示AlertView

[alert show];



[alert release];

[super viewDidLoad];

}



/*

// Override to allow orientations other than the default portrait orientation.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

// Return YES for supported orientations

return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

*/

- (void)didReceiveMemoryWarning {

// Releases the view if it doesn't have a superview.

[super didReceiveMemoryWarning];



// Release any cached data, images, etc that aren't in use.

}

- (void)viewDidUnload {

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

}



- (void)dealloc {

[super dealloc];

}

#pragma mark -- UIAlertViewDelegate --

//根据被点击按钮的索引处理点击事件

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

NSLog(@"clickedButtonAtIndex:%d",buttonIndex);

}

//AlertView已经消失时

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

NSLog(@"didDismissWithButtonIndex");

}

//AlertView即将消失时

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

NSLog(@"willDismissWithButtonIndex");

}



- (void)alertViewCancel:(UIAlertView *)alertView {

NSLog(@"alertViewCancel");

}

//AlertView已经显示时

- (void)didPresentAlertView:(UIAlertView *)alertView {

NSLog(@"didPresentAlertView");

}

//AlertView即将显示时

- (void)willPresentAlertView:(UIAlertView *)alertView {

NSLog(@"willPresentAlertView");

}

@end