UIScrollView與下一個和上一個按鈕操作

我是新的iphone，我使用水平滾動視圖這些水平滾動正確但我想這些水平滾動上一個和下一個按鈕action.please幫助我儘快。UIScrollView與下一個和上一個按鈕操作

謝謝:)當你想要去滾動視圖的下一個可見的內容

2010-12-14 Suraj

什麼是下一個和上一個按鈕呢？ – 2010-12-14 07:30:20

我猜他是指滾動按鈕。 – 2010-12-14 07:47:28

使用這一個：

（將這個一個按鈕旁邊方法中）與前

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

舉動可見內容視圖：

float coordinate = 1.0f; 

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

（把這個放在前一個按鈕裏面）

* *您需要一些數學計算座標

來源

2010-12-14 08:34:06 sudesh

謝謝我已經實現了成功的烏爾代碼，按鈕操作只執行一次，我想在一次點擊轉到一個頁面，再次點擊轉到第二頁和上一個按鈕action.so plz幫助我儘快相同的事情。提前致謝。 – 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];

來源

2012-05-04 10:48:48 Bhoomi

下面是在下面的代碼.h文件中爲我寫

工作的步驟。

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; 
}

希望這可以幫助你！

來源

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; 

}

來源

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; 
}

來源

2013-04-15 11:25:04

UIScrollView與下一個和上一個按鈕操作

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