Make sure unhandled Rx error does not crash the app in production

vector/src/main/java/im/vector/riotx/VectorApplication.kt

@@ -42,6 +42,7 @@ import im.vector.riotx.core.di.DaggerVectorComponent
 import im.vector.riotx.core.di.HasVectorInjector
 import im.vector.riotx.core.di.VectorComponent
 import im.vector.riotx.core.extensions.configureAndStart
+import im.vector.riotx.core.rx.setupRxPlugin
 import im.vector.riotx.core.utils.initKnownEmojiHashSet
 import im.vector.riotx.features.configuration.VectorConfiguration
 import im.vector.riotx.features.lifecycle.VectorActivityLifecycleCallbacks
@@ -55,8 +56,7 @@ import im.vector.riotx.features.version.VersionProvider
 import im.vector.riotx.push.fcm.FcmHelper
 import timber.log.Timber
 import java.text.SimpleDateFormat
-import java.util.Date
+import java.util.*
-import java.util.Locale
 import javax.inject.Inject
 
 class VectorApplication : Application(), HasVectorInjector, MatrixConfiguration.Provider, androidx.work.Configuration.Provider {
@@ -87,6 +87,7 @@ class VectorApplication : Application(), HasVectorInjector, MatrixConfiguration.
         vectorComponent = DaggerVectorComponent.factory().create(this)
         vectorComponent.inject(this)
         vectorUncaughtExceptionHandler.activate(this)
+        setupRxPlugin()
 
         if (BuildConfig.DEBUG) {
             Timber.plant(Timber.DebugTree())

vector/src/main/java/im/vector/riotx/core/rx/Rx.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2019 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.riotx.core.rx
+
+import im.vector.riotx.BuildConfig
+import io.reactivex.plugins.RxJavaPlugins
+import timber.log.Timber
+
+/**
+ * Make sure unhandled Rx error does not crash the app in production
+ */
+fun setupRxPlugin() {
+    RxJavaPlugins.setErrorHandler { throwable ->
+        Timber.e(throwable, "RxError")
+
+        // Avoid crash in production
+        if (BuildConfig.DEBUG) {
+            throw throwable
+        }
+    }
+}