I just migrated to androidx via the option Refactor -> Move to Androidx option in Android Studio.
By default the build.gradle file was using:
implementation 'androidx.appcompat:appcompat:1.0.0'
I am using LocalBroadcastManager in many places in the project. I could perfectly use import androidx.localbroadcastmanager.content.LocalBroadcastManager with the above v1.0.0 of the androidx.appcompat. But when I update it to 1.1.0 as:
implementation 'androidx.appcompat:appcompat:1.1.0'
The import is not working. I am getting Unresolved reference : localbroadcastmanager error.
I have tried to clean project and also rebuild project multiple times and the issue still exists.
Any solution? Thanks.
AppCompat 1.0.0 had a transitive dependency on legacy-support-core-utils (which includes localbroadcastmanager so as to maintain exact compatibility with the last Support Library 28.0.0 release.
AppCompat 1.1.0 removed that transitive dependency and now only depends on the exact libraries it needs.
Therefore if your application code still needs LocalBroadcastManager, you need to manually add the dependency on LocalBroadcastManager:
implementation "androidx.localbroadcastmanager:localbroadcastmanager:1.0.0"
Note that as per the LocalBroadcastManager 1.1.0-alpha01 release notes:
androidx.localbroadcastmanageris being deprecated in version1.1.0-alpha01.Reason
LocalBroadcastManageris an application-wide event bus and embraces layer violations in your app; any component may listen to events from any other component.- It inherits unnecessary use-case limitations of system
BroadcastManager; developers have to useIntenteven though objects live in only one process and never leave it. For this same reason, it doesn’t follow feature-wiseBroadcastManager.These add up to a confusing developer experience.
Replacement
You can replace usage of
LocalBroadcastManagerwith other implementations of the observable pattern. Depending on your use case, suitable options may beLiveDataor reactive streams.