Asset Catalog Format Reference: Sticker Sequence Type

An animated sticker for a sticker pack. The sticker uses a series of images to generate the animation.

Extension

.stickersequence

Folder Contents

An image for each frame of the sequence.

Contents.json File

Metadata, animation information, accessibility text, and filenames for the sticker sequence. For values, see (Table 28-1).

**Table 28-1**Sticker sequence tags
Key	Type	Description
`info`	Dictionary	Versioning information for the asset catalog.
`author`	String	The application that authored the asset catalog.
`version`	Number	The version of the asset catalog.
`properties`	Dictionary	Properties for the sprite atlas.
`accessibility-label`	String	A custom string used by Voice Over. The sticker name is used if no string is provided.
`duration`	Number	Determines the length of the animation cycle as a fixed duration or as a number of frames per second. The interpretation is controlled by the `duration-type` key.
`duration-type`	String	Determines how the number for `duration` is used. For the values, see duration-type below.
`repetitions`	Number	The number of times the animation repeats in addition to the initial animation. Use `0` for continuous animation.
`frames`	Array of dictionaries	The array of frames in the animation. The order of the animation is the same as the order of the array.
`filename`	String	The name of the image file containing the sticker for a frame.

Values for Enumerated Tags

duration-type

The type of duration. The value determines how the duration key is used. Values are shown in (Table 28-2).

**Table 28-2**`duration-type` values
Value	Description
`fixed`	`duration` is the number of seconds for one animation cycle.
`fps`	`duration` is the target frame rate for the animation.

Sample Contents.json File

        {
   "properties" : {
      "accessibility-label" : "The llama is winking at you.",
      "repetions" : 0,
      "duration-type" : "fps",
      "duration" : 15
   },
   "frames" : [
      {
         "filename" : "001_llamaWink.png"
      },
      {
         "filename" : "002_llamaWink.png"
      },
…
      {
         "filename" : "015_llamaWink.png"
      }
   ],
   "info" : {
      "author" : "com.developerName",
      "version" : 1
   }
}

      