Add ProgressStyle notification sample #296
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Hello @alabiaga, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
Summary of Changes
This pull request adds a new sample demonstrating the use of ProgressStyle notifications to simulate a checkout order experience. It includes a new module (live-updates) with the necessary code, resources, and configurations. The sample showcases how to track an order's progress using notifications with visual progress indicators.
Highlights
- New Module: live-updates: A new module
samples/user-interface/live-updatesis added, containing the implementation for the ProgressStyle notification sample. - LiveUpdateActivity: Introduces
LiveUpdateActivitywhich uses Compose to display a UI with a button that triggers the simulated checkout process and associated notifications. - SnackbarNotificationManager: Implements
SnackbarNotificationManagerto handle the creation and display of notifications withProgressStyleto represent different stages of the order. - Gradle Updates: Updates
app/build.gradle.ktsto include the newlive-updatesmodule as a dependency and upgradesgradle/libs.versions.tomlto update AGP version and add material3 dependency.
Changelog
Click here to see the changelog
- app/build.gradle.kts
- Updated
compileSdkandtargetSdkto 36. - Updated
minSdkto 26. - Added implementation dependency for
:samples:user-interface:live-updates.
- Updated
- app/src/main/java/com/example/platform/app/ApiSurface.kt
- Added
UserInterfaceLiveUpdatesApiSurfaceto define the API surface for the new sample. - Added
UserInterfaceLiveUpdatesApiSurfaceto theAPI_SURFACESlist.
- Added
- app/src/main/java/com/example/platform/app/SampleDemo.kt
- Imported
LiveUpdateActivity. - Added
ActivitySampleDemofor the live updates sample, including its name, description, documentation link, API surface, and content.
- Imported
- gradle/libs.versions.toml
- Updated
agpversion from "8.8.1" to "8.9.1". - Added
material3Androidversion and dependency. - Added
composeplugin alias.
- Updated
- gradle/wrapper/gradle-wrapper.properties
- Updated
distributionUrlto gradle-8.11.1-bin.zip.
- Updated
- samples/user-interface/live-updates/build.gradle.kts
- Created new build.gradle.kts file for the live-updates module, including plugins, android configuration, and dependencies.
- samples/user-interface/live-updates/src/main/AndroidManifest.xml
- Created new AndroidManifest.xml file for the live-updates module, declaring the
LiveUpdateActivityand requesting thePOST_NOTIFICATIONSpermission.
- Created new AndroidManifest.xml file for the live-updates module, declaring the
- samples/user-interface/live-updates/src/main/java/com/example/platform/ui/live_updates/LiveUpdateActivity.kt
- Created new LiveUpdateActivity.kt file, implementing the UI using Compose, requesting notification permissions, and triggering the checkout simulation.
- samples/user-interface/live-updates/src/main/java/com/example/platform/ui/live_updates/SnackbarNotificationManager.kt
- Created new SnackbarNotificationManager.kt file, handling the creation and display of notifications with ProgressStyle to simulate order tracking.
- samples/user-interface/live-updates/src/main/res/drawable/ic_launcher_background.xml
- Created new ic_launcher_background.xml file.
- samples/user-interface/live-updates/src/main/res/drawable/ic_launcher_foreground.xml
- Created new ic_launcher_foreground.xml file.
- samples/user-interface/live-updates/src/main/res/values/colors.xml
- Created new colors.xml file.
- samples/user-interface/live-updates/src/main/res/values/strings.xml
- Created new strings.xml file, defining strings for the UI and notification messages.
- samples/user-interface/live-updates/src/main/res/values/themes.xml
- Created new themes.xml file, defining the theme for the live-updates module.
- settings.gradle.kts
- Included the new module ':samples:user-interface:live-updates'.
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A progress bar's gentle climb,
A visual march through space and time,
From zero to done,
A task has begun,
Success in its linear rhyme.
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Code Review
This pull request introduces a new UI sample demonstrating the use of ProgressStyle notifications for tracking an order. The code is well-structured and implements the feature as described. However, there are a few areas that could be improved for better clarity and maintainability.
Summary of Findings
- SDK Version Check for Notification Channel: The
createNotificationChannelmethod should be called only when the SDK version is greater than or equal to Android O to avoid issues on older devices. - Backward Compatibility for Notifications: Consider using
NotificationCompat.Builderinstead ofNotification.Builderfor backward compatibility to ensure that the notifications are displayed correctly on older devices. - Asynchronous Task Handling: Consider using
CoroutineScopeinstead ofHandlerfor posting delayed notifications to provide a more Kotlin-idiomatic way of handling asynchronous tasks and avoid potential memory leaks.
Merge Readiness
The pull request is almost ready for merging. However, it's recommended to address the identified issues, especially the SDK version check for notification channel creation, before merging. I am unable to directly approve this pull request, and other reviewers should review and approve this code before merging.
| notificationManager = notifManager | ||
| val channel = NotificationChannel(CHANNEL_ID, CHANNEL_NAME, IMPORTANCE_DEFAULT) | ||
| appContext = context | ||
| notificationManager?.createNotificationChannel(channel) |
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The createNotificationChannel method should be called only when the SDK version is greater than or equal to Android O. Consider adding a version check to avoid issues on older devices.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
notificationManager?.createNotificationChannel(channel)
}| minSdk = 26 | ||
| targetSdk = 36 |
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Consider using a variable for the minSdk and targetSdk versions to ensure consistency across the project. This can be defined in gradle/libs.versions.toml and referenced here.
| .fillMaxSize() | ||
| .padding(10.dp, 100.dp), | ||
| ) { | ||
| Text(stringResource( R.string.live_update_summary_text)) |
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Consider extracting the string resource being used here into the strings.xml file. This promotes better maintainability and localization.
| onCheckout() | ||
| scope.launch { | ||
| snackbarHostState.showSnackbar("Order placed") | ||
| } |
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It might be better to move the snackbarHostState.showSnackbar call into the onCheckout function or a separate function called from onCheckout to keep the UI logic separate from the notification logic. This would improve the separation of concerns.
| var notificationBuilder = Notification.Builder(appContext, CHANNEL_ID) | ||
| .setSmallIcon(R.drawable.ic_launcher_foreground) | ||
| .setOngoing(true) | ||
| .setColorized(true) |
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Consider using NotificationCompat.Builder instead of Notification.Builder for backward compatibility. This will ensure that the notifications are displayed correctly on older devices.
| for (state in OrderState.entries) { | ||
| val notification = state.buildNotification().build() | ||
| Handler(Looper.getMainLooper()).postDelayed({ | ||
| notificationManager.notify(NOTIFICATION_ID, notification) | ||
| }, state.delay) |
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Consider using CoroutineScope instead of Handler for posting delayed notifications. This would provide a more Kotlin-idiomatic way of handling asynchronous tasks and avoid potential memory leaks.
Add the User Interface Progress Style sample that simulates a checkout order experience; tracking that order with ProgressStyle notifications.