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    <p>you cannot fade-out a UIView (the scroller) AND simultaneously fade-in the same view...</p> <p>you could just using different UIViews...</p> <p>what you can do is: </p> <p>1) fadeOut the scroller in the current position (to the backGround)</p> <p>2) while the scroller is invisible, move it to the right position (with no animation)</p> <p>3) fadeIn the scroller from the backGround</p> <p>something like:</p> <pre><code>// START FIRST PART OF ANIMATION [UIView animateWithDuration:0.5 delay:0.0 options: options:UIViewAnimationOptionTransitionCrossDissolve|UIViewAnimationOptionAllowAnimatedContent animations:^{ pagingScrollView.alpha = 0; } completion:^(BOOL finished) { // FIRST PART ENDED // MOVE SCROLLER (no animation) pagingScrollView.contentOffset = CGPointZero; // START SECOND PART OF ANIMATION [UIView animateWithDuration:0.5 delay:0.0 options: options:UIViewAnimationOptionTransitionCrossDissolve|UIViewAnimationOptionAllowAnimatedContent animations:^{ // fadeIn - animated pagingScrollView.alpha = 1; } completion:^(BOOL finished) { // ANIMATION ENDED [self refreshPages]; }]; }]; </code></pre> <p><strong>NEW EDIT:</strong></p> <p>thanks to amadour, who taught me something with his comments,</p> <p>i hope he could add an answer of his own, i would vote for him</p> <p>anyway, to answer to jowie original question:</p> <p>i got the right animation just moving the contentOffset setting out of the animation block, and removing UIViewAnimationOptionAllowAnimatedContent (not really needed), and passing pagingScrollView as parameter for transitionWithView</p> <p>this worked for me:</p> <pre><code> pagingScrollView.contentOffset = CGPointZero; [UIView transitionWithView:pagingScrollView duration:3.0 options:UIViewAnimationOptionTransitionCrossDissolve animations:^{ // pagingScrollView.contentOffset = CGPointZero; // move up, outside of animation block } completion:^(BOOL finished) { NSLog(@"--&gt;&gt; END amimation"); [self refreshPages]; }]; </code></pre>
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    1. POHow to cross-fade a UIScrollView back to the beginning
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    1. POHow to cross-fade a UIScrollView back to the beginning
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    1. COThat's quite an elegant solution, thanks. Are you sure it's not possible to cross-fade a single view? I thought it worked if you animated the view's frame... Doesn't it use an off-screen render buffer?
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    2. COoff screen render buffer is used to "freeze" the current screen, so it's faster to render the in-between frames of the animation, but it doesn't render the final frame before of the animation, as far as i know; in general for these kind of animation you set the starting property of a view, then set the final value of that property, and then start the animation, and animation let you see all the in-between values frames; but what you are trying to do is to fadeIn (that is changing the alpha value from 0 to 1) and fadeOut (that is changing same property alpha value from 1 to 0) for same view!
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    3. CO...of course you could freeze (=capture the image of the screen) the initial screen by yourself, save it in image, show it on screen over the scrollview, move the scrollview to the final position. at this point you can animate the fadeOut of the captured image, so you get the effect you wanted... search in stackoverflow, there are example for make the screen-capture...
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