viewbinding-migration-plugin

A Plugin for Android Studio to help with migrating from synthetic properties to ViewBinding.

Installation

• Download *.jar from latest release.
• In Android Studio: Preferences > Plugins > Install Plugin from Disk.

Usage

• Invoke the Rename Variables for ViewBinding action inside of any Kotlin file.
• The kotlin synthetic import statements should still be present before using.
• Usage inside files that are already using ViewBinding is possible, but pointless.

Known Issues

• Current build is compatible with Android Studio Iguana only, and not above.
• Does not match properties referenced as this.propertyName or view.propertyName.
• Does not match properties in switch expression result clauses, i.e.

      private fun getTextField(field: FormFieldEnum): TextInputLayout {
        return when (field) {
            FormFieldEnum.FIRST_NAME -> firstName /* not matched */

• After a successful rename, the IDE will be left with "Val cannot be reassigned" errors.
  • This looks like an IntelliJ issue - it persists even after reloading.
• I have examples where it has lost the first fragment of a snake-case name :-/

Notes

• Synthetic properties work when called on a super-view. These must be manually wired up to the correct child view binding (once it's been identified).
• This includes included views that don't have an ID. View binding will not generate properties for these until you add an ID.