From cd54a6f913a77ee6a8f477926e679256d585bd92 Mon Sep 17 00:00:00 2001
From: Sachin Dehury <51115041+sachin2dehury@users.noreply.github.com>
Date: Tue, 27 Jun 2023 19:31:50 +0530
Subject: [PATCH] Reduce start up time (#89)

---
 app/build.gradle                               |  1 +
 app/src/main/AndroidManifest.xml               | 18 ++++++++++++++++--
 .../kotlin/github/owlmail/app/OwlMailApp.kt    | 10 ----------
 .../app/initializer/FirebaseInitializer.kt     | 16 ++++++++++++++++
 .../app/initializer/StethoInitializer.kt       | 18 ++++++++++++++++++
 buildSrc/src/main/kotlin/Dependencies.kt       |  2 ++
 buildSrc/src/main/kotlin/DependencyVersion.kt  |  2 ++
 7 files changed, 55 insertions(+), 12 deletions(-)
 create mode 100644 app/src/main/kotlin/github/owlmail/app/initializer/FirebaseInitializer.kt
 create mode 100644 app/src/main/kotlin/github/owlmail/app/initializer/StethoInitializer.kt

diff --git a/app/build.gradle b/app/build.gradle
index 4c8f8e9..bcc1166 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -131,6 +131,7 @@ dependencies {
     kapt Dependencies.RoomCompiler
 
     implementation Dependencies.BaselineProfileInstaller
+    implementation Dependencies.StartUp
 
     implementation(project(Modules.Auth))
     implementation(project(Modules.Mail))
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 35023a6..53fb306 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -25,10 +25,24 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
         <provider
-            android:name="androidx.startup.InitializationProvider"
-            android:authorities="github.owlmail.app.androidx-startup"
+            android:name="com.google.firebase.provider.FirebaseInitProvider"
+            android:authorities="${applicationId}.FirebaseInitProvider"
+            android:exported="false"
             tools:node="remove" />
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            android:exported="false"
+            tools:node="merge">
+            <meta-data
+                android:name="github.owlmail.app.initializer.FirebaseInitializer"
+                android:value="androidx.startup" />
+            <meta-data
+                android:name="github.owlmail.app.initializer.StethoInitializer"
+                android:value="androidx.startup" />
+        </provider>
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/kotlin/github/owlmail/app/OwlMailApp.kt b/app/src/main/kotlin/github/owlmail/app/OwlMailApp.kt
index 79c789c..bdffb53 100644
--- a/app/src/main/kotlin/github/owlmail/app/OwlMailApp.kt
+++ b/app/src/main/kotlin/github/owlmail/app/OwlMailApp.kt
@@ -3,8 +3,6 @@ package github.owlmail.app
 import android.app.Application
 import androidx.hilt.work.HiltWorkerFactory
 import androidx.work.Configuration
-import com.facebook.stetho.Stetho
-import com.google.firebase.FirebaseApp
 import dagger.hilt.android.HiltAndroidApp
 import javax.inject.Inject
 
@@ -17,12 +15,4 @@ class OwlMailApp : Application(), Configuration.Provider {
         Configuration.Builder()
             .setWorkerFactory(workerFactory)
             .build()
-
-    override fun onCreate() {
-        super.onCreate()
-        FirebaseApp.initializeApp(this)
-        if (BuildConfig.DEBUG) {
-            Stetho.initializeWithDefaults(this)
-        }
-    }
 }
diff --git a/app/src/main/kotlin/github/owlmail/app/initializer/FirebaseInitializer.kt b/app/src/main/kotlin/github/owlmail/app/initializer/FirebaseInitializer.kt
new file mode 100644
index 0000000..79c9ce0
--- /dev/null
+++ b/app/src/main/kotlin/github/owlmail/app/initializer/FirebaseInitializer.kt
@@ -0,0 +1,16 @@
+package github.owlmail.app.initializer
+
+import android.content.Context
+import androidx.startup.Initializer
+import com.google.firebase.FirebaseApp
+
+class FirebaseInitializer : Initializer<Unit> {
+
+    override fun create(context: Context) {
+        FirebaseApp.initializeApp(context)
+    }
+
+    override fun dependencies(): List<Class<out Initializer<*>>> {
+        return emptyList()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/github/owlmail/app/initializer/StethoInitializer.kt b/app/src/main/kotlin/github/owlmail/app/initializer/StethoInitializer.kt
new file mode 100644
index 0000000..c3db008
--- /dev/null
+++ b/app/src/main/kotlin/github/owlmail/app/initializer/StethoInitializer.kt
@@ -0,0 +1,18 @@
+package github.owlmail.app.initializer
+
+import android.content.Context
+import androidx.startup.Initializer
+import com.facebook.stetho.Stetho
+import github.owlmail.app.BuildConfig
+
+class StethoInitializer : Initializer<Unit> {
+    override fun create(context: Context) {
+        if (BuildConfig.DEBUG) {
+            Stetho.initializeWithDefaults(context)
+        }
+    }
+
+    override fun dependencies(): List<Class<out Initializer<*>>> {
+        return emptyList()
+    }
+}
\ No newline at end of file
diff --git a/buildSrc/src/main/kotlin/Dependencies.kt b/buildSrc/src/main/kotlin/Dependencies.kt
index e493fc7..0f379cd 100644
--- a/buildSrc/src/main/kotlin/Dependencies.kt
+++ b/buildSrc/src/main/kotlin/Dependencies.kt
@@ -83,4 +83,6 @@ object Dependencies {
     // Baseline Profile installer
     const val BaselineProfileInstaller =
         "androidx.profileinstaller:profileinstaller:${DependencyVersion.BaselineProfileInstaller}"
+
+    const val StartUp = "androidx.startup:startup-runtime:${DependencyVersion.StartUp}"
 }
diff --git a/buildSrc/src/main/kotlin/DependencyVersion.kt b/buildSrc/src/main/kotlin/DependencyVersion.kt
index c16b0c2..ebef4e1 100644
--- a/buildSrc/src/main/kotlin/DependencyVersion.kt
+++ b/buildSrc/src/main/kotlin/DependencyVersion.kt
@@ -64,4 +64,6 @@ object DependencyVersion {
 
     // Baseline Profile installer
     const val BaselineProfileInstaller = "1.2.2"
+
+    const val StartUp = "1.1.1"
 }