| ### Customizing floating action buttons |
| |
| A floating action button can be configured with a combination of `shape` and `mode`. The |
| `.default` shape is a 56-point circle containing a single image or short title. The `.mini` shape |
| is a smaller, 40-point circle. The `.normal` mode is a circle containing an image or short title. |
| The `.expanded` mode is a "pill shape" and should include both an image and a single-word title. The |
| `.expanded` mode should only be used in the largest layouts. For example, an iPad in full screen. |
| |
| While in the `.expanded` mode, a floating button can position its `imageView` to either the leading |
| or trailing side of the title by setting the `imageLocation` property. |
| |
| Because of the combination of shapes and modes available to the floating action button, some |
| UIButton property setters have been made unavailable and replaced with methods to set them for a |
| specific mode and shape combination. Getters for these values are not available, and the normal |
| getter will return the current value of the property. |
| |
| - `-setContentEdgeInsets` is replaced with `-setContentEdgeInsets:forShape:inMode:` |
| - `-setHitAreaInsets` is replaced with `-setHitAreaInsets:forShape:inMode:` |
| - `-setMinimumSize` is replaced with `-setMinimumSize:forShape:inMode:` |
| - `-setMaximumSize` is replaced with `-setMaximumSize:forShape:inMode:` |
