uCrop – Image Cropping Library for Android.
Image cropping can be used for various purposes, from ordinary adjustment of user profile images to more complex features that involve aspect ratio cropping and flexible image transformations.
ProGuard rules for uCrop
In the obfuscation step, ProGuard renames classes and class members that are not entry points. By default, shrinking is applied; all classes and class members are removed. Use the next rules in your proguard-rules.pro file to fix errors.
# uCrop
-dontwarn com.yalantis.ucrop**
-keep class com.yalantis.ucrop** { *; }
-keep interface com.yalantis.ucrop** { *; }
For more information about please see uCrop website.