Add AppDataUsagePreference for Spa

This is used in new App Info page.

To try:
1. adb shell am start -n com.android.settings/.spa.SpaActivity
2. Go to Apps -> All apps -> [One App] -> Mobile data & Wi-Fi

Bug: 236346018
Test: Unit test & Manual with Settings App
Change-Id: I1ebcc2c5197eef0c35a2b188b7edb3594fa4ae2a

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

@@ -0,0 +1,132 @@
+/*
+ * 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.app.settings.SettingsEnums
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.net.NetworkStats
+import android.net.NetworkTemplate
+import android.os.Process
+import android.text.format.DateUtils
+import android.text.format.Formatter
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import com.android.settings.R
+import com.android.settings.Utils
+import com.android.settings.applications.appinfo.AppInfoDashboardFragment
+import com.android.settings.datausage.AppDataUsage
+import com.android.settings.datausage.DataUsageUtils
+import com.android.settingslib.net.NetworkCycleDataForUid
+import com.android.settingslib.net.NetworkCycleDataForUidLoader
+import com.android.settingslib.spa.framework.compose.collectAsStateWithLifecycle
+import com.android.settingslib.spa.framework.compose.toState
+import com.android.settingslib.spa.widget.preference.Preference
+import com.android.settingslib.spa.widget.preference.PreferenceModel
+import com.android.settingslib.spaprivileged.model.app.hasFlag
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.withContext
+
+@Composable
+fun AppDataUsagePreference(app: ApplicationInfo) {
+    val context = LocalContext.current
+    val presenter = remember { AppDataUsagePresenter(context, app) }
+    if (!presenter.isAvailableFlow.collectAsStateWithLifecycle(initialValue = false).value) return
+
+    Preference(object : PreferenceModel {
+        override val title = stringResource(R.string.data_usage_app_summary_title)
+        override val summary = presenter.summaryFlow.collectAsStateWithLifecycle(
+            initialValue = stringResource(R.string.computing_size),
+        )
+        override val enabled = presenter.isEnabled().toState()
+        override val onClick = presenter::startActivity
+    })
+}
+
+private class AppDataUsagePresenter(
+    private val context: Context,
+    private val app: ApplicationInfo,
+) {
+    val isAvailableFlow = flow { emit(isAvailable()) }
+
+    private suspend fun isAvailable(): Boolean = withContext(Dispatchers.IO) {
+        Utils.isBandwidthControlEnabled()
+    }
+
+    fun isEnabled() = app.hasFlag(ApplicationInfo.FLAG_INSTALLED)
+
+    val summaryFlow = flow { emit(getSummary()) }
+
+    private suspend fun getSummary() = withContext(Dispatchers.IO) {
+        val appUsageData = getAppUsageData()
+        val totalBytes = appUsageData.sumOf { it.totalUsage }
+        if (totalBytes == 0L) {
+            context.getString(R.string.no_data_usage)
+        } else {
+            val startTime = appUsageData.minOfOrNull { it.startTime } ?: System.currentTimeMillis()
+            context.getString(
+                R.string.data_summary_format,
+                Formatter.formatFileSize(context, totalBytes, Formatter.FLAG_IEC_UNITS),
+                DateUtils.formatDateTime(context, startTime, DATE_FORMAT),
+            )
+        }
+    }
+
+    private suspend fun getAppUsageData(): List<NetworkCycleDataForUid> =
+        withContext(Dispatchers.IO) {
+            createLoader().loadInBackground() ?: emptyList()
+        }
+
+    private fun createLoader(): NetworkCycleDataForUidLoader =
+        NetworkCycleDataForUidLoader.builder(context).apply {
+            setRetrieveDetail(false)
+            setNetworkTemplate(getTemplate())
+            addUid(app.uid)
+            if (Process.isApplicationUid(app.uid)) {
+                // Also add in network usage for the app's SDK sandbox
+                addUid(Process.toSdkSandboxUid(app.uid))
+            }
+        }.build()
+
+    private fun getTemplate(): NetworkTemplate = when {
+        DataUsageUtils.hasReadyMobileRadio(context) -> {
+            NetworkTemplate.Builder(NetworkTemplate.MATCH_MOBILE)
+                .setMeteredness(NetworkStats.METERED_YES)
+                .build()
+        }
+        DataUsageUtils.hasWifiRadio(context) -> {
+            NetworkTemplate.Builder(NetworkTemplate.MATCH_WIFI).build()
+        }
+        else -> NetworkTemplate.Builder(NetworkTemplate.MATCH_ETHERNET).build()
+    }
+
+    fun startActivity() {
+        AppInfoDashboardFragment.startAppInfoFragment(
+            AppDataUsage::class.java,
+            app,
+            context,
+            SettingsEnums.APPLICATIONS_INSTALLED_APP_DETAILS,
+        )
+    }
+
+    private companion object {
+        const val DATE_FORMAT = DateUtils.FORMAT_SHOW_DATE or DateUtils.FORMAT_ABBREV_MONTH
+    }
+}

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

@@ -93,7 +93,7 @@ private fun AppInfoSettings(packageInfoPresenter: PackageInfoPresenter) {
         AppPermissionPreference(app)
         AppStoragePreference(app)
         // TODO: instant_app_launch_supported_domain_urls
-        // TODO: data_settings
+        AppDataUsagePreference(app)
         AppTimeSpentPreference(app)
         // TODO: battery
         AppLocalePreference(app)