UIScrollView与下一个和上一个按钮操作

我是新的iphone，我使用水平滚动视图这些水平滚动正确但我想这些水平滚动上一个和下一个按钮action.please帮助我尽快。UIScrollView与下一个和上一个按钮操作

谢谢:)当你想要去滚动视图的下一个可见的内容

2010-12-14 Suraj

什么是下一个和上一个按钮呢？ – 2010-12-14 07:30:20

我猜他是指滚动按钮。 – 2010-12-14 07:47:28

使用这一个：

（将这个一个按钮旁边方法中）与前

float coordinate = 2.0f; 
[nodeScrollView setContentOffset:CGPointMake(460 * coordinate, 0) animated:YES];

举动可见内容视图：

float coordinate = 1.0f; 

[nodeScrollView setContentOffset:CGPointMake(460 * coordinate, 0) animated:YES];

（把这个放在前一个按钮里面）

* *您需要一些数学计算坐标

来源

2010-12-14 08:34:06 sudesh

谢谢我已经实现了成功的乌尔代码，按钮操作只执行一次，我想在一次点击转到一个页面，再次点击转到第二页和上一个按钮action.so plz帮助我尽快相同的事情。提前致谢。 – Suraj 2010-12-15 07:29:12

CGRect frame = scrollView.frame; 
frame.origin.x = frame.size.width * pageNumberYouWantToGoTo; 
frame.origin.y = 0; 
[scrollView scrollRectToVisible:frame animated:YES];

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2012-05-04 10:48:48 Bhoomi

下面是在下面的代码.h文件中为我写

工作的步骤。

int scrollMove; 
UIScrollView *aScrView; 

-(IBAction)nextBtnAction:(id)sender; 
-(IBAction)previousBtnAction:(id)sender;

在.m文件

- (void)viewDidLoad 
{ 
[super viewDidLoad]; 

scrollMove=50; 

aScrView=[[UIScrollView alloc]init]; 
aScrView.frame=CGRectMake(25,50, 270, 50); 
aScrView.delegate=self; 
aScrView.contentSize=CGSizeMake(1200, 0); 

[self.view addSubview:aScrView]; 


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


-(IBAction)nextBtnAction:(id)sender{ 

float coordinate = 2.0f; 
//scrollMove=50; 
[aScrView setContentOffset:CGPointMake(scrollMove * coordinate, 0) animated:YES]; 
scrollMove=scrollMove+50; 



} 
-(IBAction)previousBtnAction:(id)sender{ 
float coordinate = 1.0f; 


[aScrView setContentOffset:CGPointMake(scrollMove * coordinate, 0) animated:YES]; 
scrollMove=scrollMove-50; 
}

希望这可以帮助你！

来源

2012-07-12 06:44:27 VSN

- (void)viewDidLoad 
{ 
    x=0; 
    y=320; 
} 

- (IBAction)next:(id)sender 

{ 
    y=320; 
    [scrl_Knot setContentOffset:CGPointMake(x+320,0) animated:YES]; 
    x+=320; 

} 

- (IBAction)pre:(id)sender 

{ 

    x=0; 
    [scrl_Knot setContentOffset:CGPointMake(y,0) animated:YES]; 
    y-=320; 

}

来源

2013-01-16 11:28:29

- (IBAction)pre:(id)sender 
{ 
    btnNext.enabled = TRUE; 
    imageID--; 
    [scrl_venuelist setContentOffset:CGPointMake(imageID*273, 0) animated:YES]; 
    pagecontrol.currentPage=imageID; 
    if(imageID <= 0) 
    { 
     btnPrevious.enabled = FALSE; 
    } 
} 
- (IBAction)next:(id)sender 
{ 
    btnPrevious.enabled = TRUE; 
    imageID++; 
    [scrl_venuelist setContentOffset:CGPointMake(imageID*273, 0) animated:YES]; 
    pagecontrol.currentPage=imageID; 
    if(imageID >= imageArr.count-1) 
    { 
     btnNext.enabled = FALSE; 
    } 
} 

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView; 
{ 
    imageID = scrollView.contentOffset.x/scrollView.frame.size.width; 
    pagecontrol.currentPage=imageID; 

    if(imageID <= 0) 
    { 
     btnPrevious.enabled = FALSE; 
     imageID = 0; 
    } 
    else 
    { 
     btnPrevious.enabled = TRUE; 
    } 

    if(imageID >= imageArr.count-1) 
    { 
     btnNext.enabled = FALSE; 
     imageID = imageArr.count-1; 
    } 
    else 
    { 
     btnNext.enabled = TRUE; 
    } 
} 

- (void)viewDidLoad 
{ 
    scrl_venuelist.delegate=self; 
    scrl_venuelist.contentSize =CGSizeMake(273 * [imageArr count], 137); 
    if(imageID == 0) 
    { 
     btnPrevious.enabled = FALSE; 
     if(imageID == imageArr.count-1) 
     { 
      btnNext.enabled = FALSE; 
     } 
    } 
    else if(imageID == imageArr.count-1) 
    { 
     btnNext.enabled = FALSE; 
    } 
    else if(imageID > imageArr.count-1) 
    { 
     imageID = [imageArr count]-1; 
    } 
    scrl_venuelist.pagingEnabled=YES; 
    pagecontrol.numberOfPages=[imageArr count]; 
    pagecontrol.currentPage=0; 
}

来源

2013-04-15 11:25:04

UIScrollView与下一个和上一个按钮操作

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