scroll-paging | 易学教程

How to make UITableViewCell display fullscreen (allow paging)?

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问题 I have a custom UITableView - Scroll, Paging Enable . Because each of my cell has one background image, I want each time I scroll up or down it will display each image as full screen. I try to make my UITableViewCell to be full screen (stretch its height as big as the tableview). However, I've got a problem: when I scroll(paging), the cell doesn't display as full screen. It contains a small part of the next cell. Then the part of next cell increase bigger and bigger each time I scroll(paging)

Margin between images in UIScrollView

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问题 The effect I'm after: Having spacing between images that is only visible while scrolling (like the photos app). A lot of old obj-c answers suggest extending the scroll view's bounds offscreen to make it page farther, and making this offscreen space the gap between images. The documentation for pagingEnabled states: If the value of this property is YES, the scroll view stops on multiples of the scroll view’s bounds when the user scrolls. So in trying to change the multiples value, I extended

iOS : UIScrollView paging not working properly

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问题 I'm adding AsyncImageView into UIScrollView to load images from web, its working fine, there are 8 images i've added. Problem is of paging I've enabled pagingEnable to YES but it won't come as per I want, I'm trying to setting it contentOffset with different x but it won't any effects. I want that each image should come in center of UIScrollView when I scroll or choose next or previous option. This is the code where I'm adding images to UIScrollView arrImgUrls is an NSArray _currentImage,

iOS : How to do proper paging in UIScrollView?

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问题 I've a UIScrollView of size (320,160). I'm adding some UIImageView into it, which are of size (213,160). The first UImageView starting from 54 (x) and so on, I've added a space of 5.0 in between each UIImageView . I've also enabled pagingEnable in IB & in coding . What my problem is its not properly working as per its property! When I scroll it should show me UIImageViews in each single page instead it showing me something like see screenshot I want output something like this see output

UICollectionView with CustomFlowLayout How to restricts scroll to only one page per scroll?

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问题 I have implemented customFlowLayout in my iOS App. And I have subclassed the targetContentOffsetForProposedContentOffset:withScrollingVelocity with subclassing UICollectionViewFlowLayout . Now my issue is when user scrolls the collectionview it must scroll to only next index. Right now it scrolled randomly. So anyone have any idea that how can I make the scroll restricts to only one item per scroll. Following is my code. #pragma mark - UICollectionViewLayout (UISubclassingHooks) - (CGPoint

How To Separate Strings For UIScrollView/UITextView based on the size of the frame

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问题 I'm currently trying to read in a RSS feed and separate the long paragraphed text into a UIScrollView with paging enabled. I need to separate the text into different pages aka fit what will fit on each page and separate the string as such. I'm not sure if there is a standard what of doing this and I assume that this is how most RSS reading apps separate their information on multiple pages. Does anyone know how to tackle this? I did not want to look letter by letter until the text didn't fit

Stop NSScrollView only on specific values - Like UIScrollView paging

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问题 I am working on a Mac OS X app using SDK 10.7 as deployment target. A NSScrollView contains a horizontal list of image thumbnails. The thumbnail which is in the center of the ScrollView indicates the selected image which is shown below the ScrollView in full size. This works quite similar the the Finder Cover-Flow, beside that the images in my app do not flow but just scroll away. I would like to limit the scrolling to stop only when a thumbnail is exactly in the center. The NSView method

How To Separate Strings For UIScrollView/UITextView based on the size of the frame

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I'm currently trying to read in a RSS feed and separate the long paragraphed text into a UIScrollView with paging enabled. I need to separate the text into different pages aka fit what will fit on each page and separate the string as such. I'm not sure if there is a standard what of doing this and I assume that this is how most RSS reading apps separate their information on multiple pages. Does anyone know how to tackle this? I did not want to look letter by letter until the text didn't fit and continue. edit: This is a good start, but the example code pretty much runs into the problems I was

Stop NSScrollView only on specific values - Like UIScrollView paging

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I am working on a Mac OS X app using SDK 10.7 as deployment target. A NSScrollView contains a horizontal list of image thumbnails. The thumbnail which is in the center of the ScrollView indicates the selected image which is shown below the ScrollView in full size. This works quite similar the the Finder Cover-Flow, beside that the images in my app do not flow but just scroll away. I would like to limit the scrolling to stop only when a thumbnail is exactly in the center. The NSView method adjustScroll: is no solution. This would disable "smooth" scrolling and let the ScrollView jump from one

How to make UITableViewCell display fullscreen (allow paging)?

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I have a custom UITableView - Scroll, Paging Enable . Because each of my cell has one background image, I want each time I scroll up or down it will display each image as full screen. I try to make my UITableViewCell to be full screen (stretch its height as big as the tableview). However, I've got a problem: when I scroll(paging), the cell doesn't display as full screen. It contains a small part of the next cell. Then the part of next cell increase bigger and bigger each time I scroll(paging) down. I didn't see any Auto Layout Option for UITableViewCell, cannot add constraint to the prototype