Abstract: A client device selects content items associated with various applications executing on the client device and dynamically lays out the selected content items for presentation while the client device is in a locked state. To present the selected content items, the client device selects a page template including slots specifying sizing and relative positioning of content items based on user attributes, geographic information, client device characteristics, and content item attributes. Content items associated with various applications are associated with each slot in the selected page template, and when the client device is in a locked state, the content items are presented with relative sizing and positioning determined by the slots in the selected page template.

Abstract: A digital magazine application executing on a client device presents a digital magazine to a user including content items retrieved from one or more sources based on information associated with the user. When presenting the digital magazine, a cover is presented including an image and one or more headlines describing one or more content items included in the digital magazine. The cover may be generated by clustering content items included in the digital magazine and ranking content items in various clusters based on their characteristics. Based on the rankings, information describing content items from various clusters is included on the cover. Alternatively, the cover includes information describing content items identified based on the order in which the content items are presented by the digital magazine.