blocks|key|1332949|text|另一种方式是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1332950|scrollView.contentOffset+=+CGPointMake(x,y);|code-block|syntax|javascript|1332951|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Another way is

<pre><code>scrollView.contentOffset = CGPointMake(x,y);
</code></pre>

blocks|key|1117933|text|如果要控制动画的持续时间和样式，可以执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1117934|[UIView+animateWithDuration:2.0f+delay:0+options:UIViewAnimationOptionCurveLinear+animations:%5E{
++++scrollView.contentOffset+=+CGPointMake(x,+y);
}+completion:NULL];|code-block|syntax|javascript|1117935|调整持续时间(2.0f)和选项(UIViewAnimationOptionCurveLinear)来品尝！|offset|length|style|CODE|1117936|entityMap^0|0|0|7|4|G|W|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

If you want control over the duration and style of the animation, you can do:

<pre><code>[UIView animateWithDuration:2.0f delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
 scrollView.contentOffset = CGPointMake(x, y);
} completion:NULL];
</code></pre>

Adjust the duration (<code>2.0f</code>) and options (<code>UIViewAnimationOptionCurveLinear</code>) to taste!

blocks|key|1333014|text|-+(void)viewDidLoad
{
++++[super+viewDidLoad];
++++board=[[UIView+alloc]initWithFrame:CGRectMake(0,+0,+self.view.frame.size.height,+80)];
++++board.backgroundColor=[UIColor+greenColor];
++++[self.view+addSubview:board];
++++//+Do+any+additional+setup+after+loading+the+view.
}


-(void)viewDidLayoutSubviews
{


++++NSString+*str=@"ABCDEFGHIJKLMNOPQRSTUVWXYZ";

++++index=1;
++++for+(int+i=0;+i<20;+i%2B%2B)
++++{
++++++++UILabel+*lbl=[[UILabel+alloc]initWithFrame:CGRectMake(-50,+15,+50,+50)];
++++++++lbl.tag=i%2B1;
++++++++lbl.text=[NSString+stringWithFormat:@"%25c",[str+characterAtIndex:arc4random()%25str.length]];
++++++++lbl.textColor=[UIColor+darkGrayColor];
++++++++lbl.textAlignment=NSTextAlignmentCenter;
++++++++lbl.font=[UIFont+systemFontOfSize:40];
++++++++lbl.layer.borderWidth=1;
++++++++lbl.layer.borderColor=[UIColor+blackColor].CGColor;
++++++++[board+addSubview:lbl];
++++}

++++[NSTimer+scheduledTimerWithTimeInterval:2+target:self+selector:@selector(CallAnimation)+userInfo:nil+repeats:YES];

++++NSLog(@"%25d",[board+subviews].count);
}


-(void)CallAnimation
{

++++if+(index>20)+{
++++++++index=1;
++++}
++++UIView+*aView=[board+viewWithTag:index];
++++[self+doAnimation:aView];
++++index%2B%2B;
++++NSLog(@"%25d",index);
}

-(void)doAnimation:(UIView*)aView
{
++++[UIView+animateWithDuration:10+delay:0+options:UIViewAnimationOptionCurveLinear++animations:%5E{
++++++++aView.frame=CGRectMake(self.view.frame.size.height,+15,+50,+50);
++++}
+++++++++++++++++++++completion:%5E(BOOL+isDone)
+++++{
+++++++++if+(isDone)+{
+++++++++++++//do+Somthing
++++++++++++++++++++++++aView.frame=CGRectMake(-50,+15,+50,+50);
+++++++++}
+++++}];
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1333015|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>- (void)viewDidLoad
{
 [super viewDidLoad];
 board=[[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.height, 80)];
 board.backgroundColor=[UIColor greenColor];
 [self.view addSubview:board];
 // Do any additional setup after loading the view.
}


-(void)viewDidLayoutSubviews
{


 NSString *str=@"ABCDEFGHIJKLMNOPQRSTUVWXYZ";

 index=1;
 for (int i=0; i&lt;20; i++)
 {
 UILabel *lbl=[[UILabel alloc]initWithFrame:CGRectMake(-50, 15, 50, 50)];
 lbl.tag=i+1;
 lbl.text=[NSString stringWithFormat:@"%c",[str characterAtIndex:arc4random()%str.length]];
 lbl.textColor=[UIColor darkGrayColor];
 lbl.textAlignment=NSTextAlignmentCenter;
 lbl.font=[UIFont systemFontOfSize:40];
 lbl.layer.borderWidth=1;
 lbl.layer.borderColor=[UIColor blackColor].CGColor;
 [board addSubview:lbl];
 }

 [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(CallAnimation) userInfo:nil repeats:YES];

 NSLog(@"%d",[board subviews].count);
}


-(void)CallAnimation
{

 if (index&gt;20) {
 index=1;
 }
 UIView *aView=[board viewWithTag:index];
 [self doAnimation:aView];
 index++;
 NSLog(@"%d",index);
}

-(void)doAnimation:(UIView*)aView
{
 [UIView animateWithDuration:10 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
 aView.frame=CGRectMake(self.view.frame.size.height, 15, 50, 50);
 }
 completion:^(BOOL isDone)
 {
 if (isDone) {
 //do Somthing
 aView.frame=CGRectMake(-50, 15, 50, 50);
 }
 }];
}
</code></pre>

blocks|key|1117971|text|在Swift中使用动画|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1117972|scrollView.setContentOffset(CGPointMake(x,+y),+animated:+true)|code-block|syntax|javascript|1117973|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

With Animation in Swift

<pre><code>scrollView.setContentOffset(CGPointMake(x, y), animated: true)
</code></pre>

blocks|key|1333056|text|scrollView.setContentOffset(CGPoint(x:+y,+y:+x),+animated:+true)|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1333057|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>scrollView.setContentOffset(CGPoint(x: y, y: x), animated: true)
</code></pre>

blocks|key|1118013|text|[Scrollview+setContentOffset:CGPointMake(x,+y)+animated:YES];|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1118014|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>[Scrollview setContentOffset:CGPointMake(x, y) animated:YES];
</code></pre>

blocks|key|1333078|text|Swift+3|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1333079|let+point+=+CGPoint(x:+0,+y:+200)+//+200+or+any+value+you+like.
scrollView.contentOffset+=+point|code-block|syntax|javascript|1333080|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3
<pre><code>let point = CGPoint(x: 0, y: 200) // 200 or any value you like.
scrollView.contentOffset = point
</code></pre>

I have a <code>UIScrollView</code> which has several views. When a user flicks their finger, the view scrolls to the right or left depending on the direction of the finger flick. Basically my code works in a way similar to the iPhone photo app. Now, is there a way that I can programmatically do the same thing so that I end up with a slideshow that runs on its own with a click of a button and a configurable pause between each scroll?

How do you really do slideshows with <code>UIScrollView</code>?

Programmatically scroll a UIScrollView

Swift

我有一个有几个视图的UIScrollView。当用户轻击手指时，视图将根据手指轻击的方向向右或向左滚动。基本上，我的代码的工作方式类似于iPhone照片应用程序。现在，有没有一种方法可以让我以编程的方式做同样的事情，这样我就会得到一个幻灯片，只需点击一个按钮，每个滚动之间就会有一个可配置的暂停？你到底是怎么用UIScr...

问以编程方式滚动UIScrollView
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