ios-sticker-packs-app

A customizable sticker iMessage App with tabbed category switcher and sticker size slider.

• Notable features
  • Customizable tabbed category switcher.
  • User adjustable sticker size slider.
    • Adjustable default sticker size.
  • User feedback submission.
    • Pre-setup with Google Sheets as storage.
  • Persistence for:
    • Last selected category
    • Adjusted sticker size
  • Analytics integration.
    • Fabric Crashlytics/Answers enabled.

This code is used in Fluffcorn stickers, a iMessage sticker app. If you want to preview its functionality, download Fluffcorn on the App Store for free HERE.

How to use for your own stickers

1. Clone or download ios-sticker-packs-app.
2. Delete all resources in Art Assets in Xcode. See Removing Existing Art Assets.
3. Add your own sticker images to the project.
4. Edit stickerPacks.json to include your own stickers. See How to edit stickerPacks.json.
5. Set default sticker size. See Configuring Default Sticker Size.
6. Set the sticker size slider visibility. See Configuring Sticker Size Slider Visibility.
7. Edit about.txt to include your app information.
8. Edit App Name, Bundle ID, Version, Build data.
9. Setup or disable Fabric integration. See Configuring Fabric Integration
10. Submit to App Store.

How to edit stickerPacks.json

stickerPacks.json is in JSON format.

There are two keys in the root dictionary. packOrder is an array with order of the "packs" (categories). allPacks is a dictionary containing keys for each "pack". Each pack is a dictionary with a order key which is an array containing a dictionary for each sticker in that pack. filename is the filename of the sticker in your project. description is the accessibility label for the sticker.

Configuring Default Sticker Size

• Set kDefaultStickerSize in Constants.h to 0,1, 2 for MSStickerSizeSmall, MSStickerSizeRegular,MSStickerSizeLarge respectively.
• MSStickerSize reference.

Configuring Sticker Size Slider Visibility

• If you want the sticker size slider to be visible, set kStickerSizeSliderVisibility in Constants.h to YES.
• If you want the sticker size slider to NOT be visible, set kStickerSizeSliderVisibility in Constants.h to NO.

Configuring Feedback Submission

• If you want Feedback submission, set kFeedbackAction in Constants.h to YES. Follow this post and edit sendFeedbackAction: in MessagesViewController.h with the appropriate values for your Google Form.
• If you do NOT want Feedback submission, set kFeedbackAction in Constants.h to NO.

Configuring Fabric Integration

• If you want Fabric integration, set kFabricEnabled in Constants.h to YES.
• Create files named fabric.apikey and fabric.buildsecret in the $SRCROOT directory (usually the project directory). Include your API key and build secret in the files respectively.
• Add the below lines to your .gitignore file if you intend on making the source code public.

fabric.apikey
fabric.buildsecret

• Verify that Run Script located under the MessagesExtension > Build Phases matches the below bash code.

FABRIC_APIKEY=$(cat ${SRCROOT}/fabric.apikey)
FABRIC_BUILDSECRET=$(cat ${SRCROOT}/fabric.buildsecret)
${SRCROOT}/Fabric.framework/run ${FABRIC_APIKEY} ${FABRIC_BUILDSECRET}

• If you do NOT want Fabric integration, set kFabricEnabled in Constants.h to NO.
• Remove Run Script located under the MessagesExtension > Build Phases.
• Remove files fabric.apikey and fabric.buildsecret from Xcode.

Using APNG stickers

There are some non-obvious steps to using animated PNG (APNG) stickers in a iMessage App versus a no-code Sticker app.

• APNG must be under 500kb. Xcode processes images during build time and if your image is under but too close to 500kb, the image will be too big and the Apple sticker browser will not work correctly.
• APNG files must be imported with the .png extension.
• Make sure the imported files have MessagesExtension selected for target membership.

Removing Existing Art Assets

When using ios-sticker-packs-app for your own iMessage sticker app, remove all resources in the Art Assets file group in the Xcode Navigator to get rid of the Fluffcorn art assets and provide your own art.

Settings.bundle

Standalone iMessage apps do not currently seem to appear in the Settings app. Settings.bundle is included if you would like a Settings menu in an iOS app.

License and Contributing

All art assets in this repository (any images including PNG and APNG) are © 2016 Alisha Liu under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Everything else (the code and text assets) in this repository is made available under MIT License.

Visible attribution to ios-sticker-packs-app by Anson Liu, Alisha Liu required if used publicly or commercially.

Issues, feature requests, and contributions welcome!