Add in-app alert to let user know if a new version is available.

dependencies.gradle

@@ -15,6 +15,7 @@ def gradle = "7.1.3"
 def kotlin = "1.6.21"
 def kotlinCoroutines = "1.6.4"
 def dagger = "2.42"
+def appDistribution = "16.0.0-beta03"
 def retrofit = "2.9.0"
 def arrow = "0.8.2"
 def markwon = "4.6.2"
@@ -83,7 +84,9 @@ ext.libs = [
                 'transition'              : "androidx.transition:transition:1.2.0",
         ],
         google      : [
-                'material'                : "com.google.android.material:material:1.6.1"
+                'material'                : "com.google.android.material:material:1.6.1",
+                'appdistributionApi'      : "com.google.firebase:firebase-appdistribution-api-ktx:$appDistribution",
+                'appdistribution'         : "com.google.firebase:firebase-appdistribution:$appDistribution",
         ],
         dagger      : [
                 'dagger'                  : "com.google.dagger:dagger:$dagger",

vector/build.gradle

@@ -449,6 +449,12 @@ dependencies {
     implementation libs.airbnb.epoxyPaging
     implementation libs.airbnb.mavericks
 
+    // Nightly
+    // API-only library
+    gplayImplementation libs.google.appdistributionApi
+    // Full SDK implementation
+    gplayImplementation libs.google.appdistribution
+
     // Work
     implementation libs.androidx.work
 

vector/src/fdroid/java/im/vector/app/nightly/NightlyProxy.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * 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 im.vector.app.nightly
+
+import javax.inject.Inject
+
+class NightlyProxy @Inject constructor() {
+    fun updateIfNewReleaseAvailable() {
+        // No op
+    }
+}

vector/src/gplay/java/im/vector/app/nightly/NightlyProxy.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * 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 im.vector.app.nightly
+
+import com.google.firebase.appdistribution.FirebaseAppDistribution
+import com.google.firebase.appdistribution.FirebaseAppDistributionException
+import timber.log.Timber
+import javax.inject.Inject
+
+class NightlyProxy @Inject constructor() {
+    fun updateIfNewReleaseAvailable() {
+        val firebaseAppDistribution = FirebaseAppDistribution.getInstance()
+        firebaseAppDistribution.updateIfNewReleaseAvailable()
+                .addOnProgressListener { up ->
+                    Timber.d("FirebaseAppDistribution progress: ${up.updateStatus}. ${up.apkBytesDownloaded}/${up.apkFileTotalBytes}")
+                }
+                .addOnFailureListener { e ->
+                    if (e is FirebaseAppDistributionException) {
+                        when (e.errorCode) {
+                            FirebaseAppDistributionException.Status.NOT_IMPLEMENTED -> {
+                                // SDK did nothing. This is expected when building for Play.
+                            }
+                            else -> {
+                                // Handle other errors.
+                                Timber.e(e, "FirebaseAppDistribution error, status: ${e.errorCode}")
+                            }
+                        }
+                    } else {
+                        Timber.e(e, "FirebaseAppDistribution - other error")
+                    }
+                }
+    }
+}

vector/src/main/java/im/vector/app/features/home/HomeActivity.kt

@@ -78,6 +78,7 @@ import im.vector.app.features.spaces.invite.SpaceInviteBottomSheet
 import im.vector.app.features.spaces.share.ShareSpaceBottomSheet
 import im.vector.app.features.themes.ThemeUtils
 import im.vector.app.features.workers.signout.ServerBackupStatusViewModel
+import im.vector.app.nightly.NightlyProxy
 import im.vector.app.push.fcm.FcmHelper
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
@@ -132,6 +133,7 @@ class HomeActivity :
     @Inject lateinit var appStateHandler: AppStateHandler
     @Inject lateinit var unifiedPushHelper: UnifiedPushHelper
     @Inject lateinit var fcmHelper: FcmHelper
+    @Inject lateinit var nightlyProxy: NightlyProxy
 
     private val createSpaceResultLauncher = registerStartForActivityResult { activityResult ->
         if (activityResult.resultCode == Activity.RESULT_OK) {
@@ -533,6 +535,9 @@ class HomeActivity :
 
         // Force remote backup state update to update the banner if needed
         serverBackupStatusViewModel.refreshRemoteStateIfNeeded()
+
+        // Check nightly
+        nightlyProxy.updateIfNewReleaseAvailable()
     }
 
     override fun getMenuRes() = R.menu.home