问题
I created a horizontal collection view and single cell is displayed in screen. I try to preview another views in each cell and when user swipe up the cell should expand to full screen. I don't know to how to approach this problem? How can I expand cell to fullscreen animated?
回答1:
If you want to increase cell size to fit to your screen you can use this method.
Objective-C
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
return CGSizeMake(self.view.frame.size.width, self.view.frame.size.height);
}
Swift
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
//For entire screen size
let screenSize = UIScreen.main.bounds.size
return screenSize
//If you want to fit the size with the size of ViewController use bellow
let viewControllerSize = self.view.frame.size
return viewControllerSize
// Even you can set the cell to uicollectionview size
let cvRect = collectionView.frame
return CGSize(width: cvRect.width, height: cvRect.height)
}
来源：https://stackoverflow.com/questions/40346165/how-to-expand-collectionview-cell-to-full-screen