Merge "Add AppNotificationPreference to App Info Settings"

src/com/android/settings/spa/app/appinfo/AppInfoSettings.kt

@@ -95,7 +95,7 @@ private fun AppInfoSettings(packageInfoPresenter: PackageInfoPresenter) {
 
         AppSettingsPreference(app)
         AppAllServicesPreference(app)
-        // TODO: notification_settings
+        AppNotificationPreference(app)
         AppPermissionPreference(app)
         AppStoragePreference(app)
         InstantAppDomainsPreference(app)

src/com/android/settings/spa/app/appinfo/AppNotificationPreference.kt

@@ -0,0 +1,67 @@
+/*
+* Copyright (C) 2022 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.android.settings.spa.app.appinfo
+
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.lifecycle.compose.ExperimentalLifecycleComposeApi
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.android.settings.R
+import com.android.settings.applications.appinfo.AppInfoDashboardFragment
+import com.android.settings.notification.app.AppNotificationSettings
+import com.android.settings.spa.notification.AppNotificationRepository
+import com.android.settings.spa.notification.IAppNotificationRepository
+import com.android.settingslib.spa.framework.compose.rememberContext
+import com.android.settingslib.spa.widget.preference.Preference
+import com.android.settingslib.spa.widget.preference.PreferenceModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
+
+@OptIn(ExperimentalLifecycleComposeApi::class)
+@Composable
+fun AppNotificationPreference(
+    app: ApplicationInfo,
+    repository: IAppNotificationRepository = rememberContext(::AppNotificationRepository),
+) {
+    val context = LocalContext.current
+    val summaryFlow = remember(app) {
+        flow {
+            emit(repository.getNotificationSummary(app))
+        }.flowOn(Dispatchers.IO)
+    }
+    Preference(object : PreferenceModel {
+        override val title = stringResource(R.string.notifications_label)
+        override val summary = summaryFlow.collectAsStateWithLifecycle(
+            initialValue = stringResource(R.string.summary_placeholder)
+        )
+        override val onClick = { navigateToAppNotificationSettings(context, app) }
+    })
+}
+
+private fun navigateToAppNotificationSettings(context: Context, app: ApplicationInfo) {
+    AppInfoDashboardFragment.startAppInfoFragment(
+        AppNotificationSettings::class.java,
+        app,
+        context,
+        AppInfoSettingsProvider.METRICS_CATEGORY,
+    )
+}

src/com/android/settings/spa/notification/AppNotificationRepository.kt

@@ -31,8 +31,10 @@ import android.os.RemoteException
 import android.os.ServiceManager
 import android.util.Log
 import com.android.settings.R
+import com.android.settingslib.spa.framework.util.formatString
 import com.android.settingslib.spaprivileged.model.app.IPackageManagers
 import com.android.settingslib.spaprivileged.model.app.PackageManagers
+import com.android.settingslib.spaprivileged.model.app.userId
 import java.util.concurrent.TimeUnit
 import kotlin.math.max
 import kotlin.math.roundToInt
@@ -50,6 +52,11 @@ data class NotificationSentState(
     var sentCount: Int = 0,
 )
 
+interface IAppNotificationRepository {
+    /** Gets the notification summary for the given application. */
+    fun getNotificationSummary(app: ApplicationInfo): String
+}
+
 class AppNotificationRepository(
     private val context: Context,
     private val packageManagers: IPackageManagers = PackageManagers,
@@ -59,7 +66,7 @@ class AppNotificationRepository(
     private val notificationManager: INotificationManager = INotificationManager.Stub.asInterface(
         ServiceManager.getService(Context.NOTIFICATION_SERVICE)
     ),
-) {
+) : IAppNotificationRepository {
     fun getAggregatedUsageEvents(userIdFlow: Flow<Int>): Flow<Map<String, NotificationSentState>> =
         userIdFlow.map { userId ->
             val aggregatedStats = mutableMapOf<String, NotificationSentState>()
@@ -115,6 +122,58 @@ class AppNotificationRepository(
         }
     }
 
+    override fun getNotificationSummary(app: ApplicationInfo): String {
+        if (!isEnabled(app)) return context.getString(R.string.off)
+        val channelCount = getChannelCount(app)
+        if (channelCount == 0) {
+            return calculateFrequencySummary(getSentCount(app))
+        }
+        val blockedChannelCount = getBlockedChannelCount(app)
+        if (channelCount == blockedChannelCount) return context.getString(R.string.off)
+        val frequencySummary = calculateFrequencySummary(getSentCount(app))
+        if (blockedChannelCount == 0) return frequencySummary
+        return context.getString(
+            R.string.notifications_enabled_with_info,
+            frequencySummary,
+            context.formatString(
+                R.string.notifications_categories_off, "count" to blockedChannelCount
+            )
+        )
+    }
+
+    private fun getSentCount(app: ApplicationInfo): Int {
+        var sentCount = 0
+        queryEventsForPackageForUser(app).forEachNotificationEvent { sentCount++ }
+        return sentCount
+    }
+
+    private fun queryEventsForPackageForUser(app: ApplicationInfo): UsageEvents? {
+        val now = System.currentTimeMillis()
+        val startTime = now - TimeUnit.DAYS.toMillis(DAYS_TO_CHECK)
+        return try {
+            usageStatsManager.queryEventsForPackageForUser(
+                startTime, now, app.userId, app.packageName, context.packageName
+            )
+        } catch (e: RemoteException) {
+            Log.e(TAG, "Failed IUsageStatsManager.queryEventsForPackageForUser(): ", e)
+            null
+        }
+    }
+
+    private fun getChannelCount(app: ApplicationInfo): Int = try {
+        notificationManager.getNumNotificationChannelsForPackage(app.packageName, app.uid, false)
+    } catch (e: Exception) {
+        Log.w(TAG, "Error calling INotificationManager", e)
+        0
+    }
+
+    private fun getBlockedChannelCount(app: ApplicationInfo): Int = try {
+        notificationManager.getBlockedChannelCount(app.packageName, app.uid)
+    } catch (e: Exception) {
+        Log.w(TAG, "Error calling INotificationManager", e)
+        0
+    }
+
     fun calculateFrequencySummary(sentCount: Int): String {
         val dailyFrequency = (sentCount.toFloat() / DAYS_TO_CHECK).roundToInt()
         return if (dailyFrequency > 0) {