View transition performance

Question

We are developing a magazine-like app and we use View as each page. In each view there are text and images. The images are masked so that they can fit the layout of the page. During view trasition (slide), there are two problems:

1. The mask will displace so the images will get out of their original box. This result a non-smooth feel of page-turning

2. there is a long delay between users finish swiping and transition starts

We wonder if anybody has solutions. Thanks!

Joe ... Ward · Answer

One thing to experiment with for the second issue is the image decoding policy: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/system/LoaderContext.html#imageDecodingPolicy

We added this option expressly for swiping images on mobile devices. Set it to ON_LOAD. What happened (before we added the feature and currently with the default ON_DEMAND policy) is that the image sliding onto the screen was being decoded during the transition, which made things chunky. Not guaranteed to help your issue, but sounds promising.

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