UIScrollView基本用法和代理方法

-(

void

)viewDidLoad

002

{

003

[super
viewDidLoad];

004

005

scrollView
=[[UIScrollViewalloc]initWithFrame:CGRectMake(0,0,320,460)];

006

scrollView.backgroundColor
=[UIColorredColor];

007

//
是否支持滑动最顶端

008

//
scrollView.scrollsToTop=NO;

009

scrollView.delegate
=self;

010

//
设置内容大小

011

scrollView.contentSize
=CGSizeMake(320,460*10);

012

//
是否反弹

013

//
scrollView.bounces=NO;

014

//
是否分页

015

//
scrollView.pagingEnabled=YES;

016

//
是否滚动

017

//
scrollView.scrollEnabled=NO;

018

//
scrollView.showsHorizontalScrollIndicator=NO;

019

//
设置indicator风格

020

//
scrollView.indicatorStyle=UIScrollViewIndicatorStyleWhite;

021

//
设置内容的边缘和Indicators边缘

022

//
scrollView.contentInset=UIEdgeInsetsMake(0,50,50,0);

023

//
scrollView.scrollIndicatorInsets=UIEdgeInsetsMake(0,50,0,0);

024

//
提示用户,Indicatorsflash

025

[scrollView
flashScrollIndicators];

026

//
是否同时运动,lock

027

scrollView.directionalLockEnabled
=YES;

028

[self.view
addSubview:scrollView];

029

030

UILabel
*label=[[UILabelalloc]initWithFrame:CGRectMake(0,200,320,40)];

031

label.backgroundColor
=[UIColoryellowColor];

032

label.text
=@

"学习scrolleview"

;

033

[scrollView
addSubview:label];

034

[label
release];

035

}

036

037

#pragma
mark-

038

/*

039

//
返回一个放大或者缩小的视图

040

-
(UIView*)viewForZoomingInScrollView:(UIScrollView*)scrollView

041

{

042

043

}

044

//
开始放大或者缩小

045

-
(void)scrollViewWillBeginZooming:(UIScrollView*)scrollViewwithView:

046

(UIView
*)view

047

{

048

049

}

050

051

//
缩放结束时

052

-
(void)scrollViewDidEndZooming:(UIScrollView*)scrollViewwithView:(UIView*)viewatScale:(float)scale

053

{

054

055

}

056

057

//
视图已经放大或缩小

058

-
(void)scrollViewDidZoom:(UIScrollView*)scrollView

059

{

060

NSLog(@"scrollViewDidScrollToTop");

061

}

062

*/

063

064

//
是否支持滑动至顶部

065

-
(

BOOL

)scrollViewShouldScrollToTop:(UIScrollView
*)scrollView

066

{

067

return

YES;

068

}

069

070

//
滑动到顶部时调用该方法

071

-
(

void

)scrollViewDidScrollToTop:(UIScrollView
*)scrollView

072

{

073

NSLog(@

"scrollViewDidScrollToTop"

);

074

}

075

076

//
scrollView已经滑动

077

-
(

void

)scrollViewDidScroll:(UIScrollView
*)scrollView

078

{

079

NSLog(@

"scrollViewDidScroll"

);

080

}

081

082

//
scrollView开始拖动

083

-
(

void

)scrollViewWillBeginDragging:(UIScrollView
*)scrollView

084

{

085

NSLog(@

"scrollViewWillBeginDragging"

);

086

}

087

088

//
scrollView结束拖动

089

-
(

void

)scrollViewDidEndDragging:(UIScrollView
*)scrollViewwillDecelerate:(

BOOL

)decelerate

090

{

091

NSLog(@

"scrollViewDidEndDragging"

);

092

}

093

094

//
scrollView开始减速（以下两个方法注意与以上两个方法加以区别）

095

-
(

void

)scrollViewWillBeginDecelerating:(UIScrollView
*)scrollView

096

{

097

NSLog(@

"scrollViewWillBeginDecelerating"

);

098

}

099

100

//
scrollview减速停止

101

-
(

void

)scrollViewDidEndDecelerating:(UIScrollView
*)scrollView

102

{

103

NSLog(@

"scrollViewDidEndDecelerating"

);

104

}