An iOS app comparing manual layout and Auto Layout for table cells with dynamic heights.
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DynamicCellHeights.xcodeproj
DynamicCellHeights
.gitignore
README.md
dynamic-cell-heights-sample-application.png

README.md

Auto Layout for Table View Cells with Dynamic Heights

This is the sample application for the blog post Auto Layout for Table View Cells with Dynamic Heights which implements a Twitter-like table view that can switch between two cell types:

  • JSManualMessageCell uses manual geometry to position elements in layoutSubviews
  • JSAutoMessageCell uses Auto Layout to position elements with constraints

The table view also implements 3 performance optimizations that can be turned on and off with compile-time feature flags:

  1. row height caching (PERFORMANCE_ENABLE_HEIGHT_CACHE)
  2. separate cell identifier for media cells (PERFORMANCE_ENABLE_MEDIA_CELL_ID)
  3. iOS 7's tableView:estimatedHeightForRowAtIndexPath: (PERFORMANCE_ENABLE_ESTIMATED_ROW_HEIGHT)

Screenshot:

Screenshot of sample application