Reworked a few things to speed up app cold startup

app/src/main/java/org/linphone/contacts/ContactsManager.kt

@@ -58,6 +58,7 @@ import org.linphone.utils.AppUtils
 import org.linphone.utils.ImageUtils
 import org.linphone.utils.LinphoneUtils
 import org.linphone.utils.PhoneNumberUtils
+import org.linphone.utils.ShortcutUtils
 
 class ContactsManager @UiThread constructor() {
     companion object {
@@ -174,6 +175,9 @@ class ContactsManager @UiThread constructor() {
         conferenceAvatarMap.clear()
 
         notifyContactsListChanged()
+
+        Log.i("$TAG Native contacts have been loaded, creating chat rooms shortcuts")
+        ShortcutUtils.createShortcutsToChatRooms(coreContext.context)
     }
 
     @WorkerThread
@@ -343,6 +347,16 @@ class ContactsManager @UiThread constructor() {
         for (list in core.friendsLists) {
             list.addListener(friendListListener)
         }
+
+        val context = coreContext.context
+        if (ActivityCompat.checkSelfPermission(
+                context,
+                Manifest.permission.READ_CONTACTS
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            Log.w("$TAG READ_CONTACTS permission was denied, creating chat rooms shortcuts")
+            ShortcutUtils.createShortcutsToChatRooms(context)
+        }
     }
 
     @WorkerThread

app/src/main/java/org/linphone/core/CoreContext.kt

@@ -236,12 +236,20 @@ class CoreContext @UiThread constructor(val context: Context) : HandlerThread("C
         core.isAutoIterateEnabled = true
         core.addListener(coreListener)
 
+        coreThread.postDelayed({ startCore() }, 50)
+
+        Looper.loop()
+    }
+
+    @WorkerThread
+    fun startCore() {
+        Log.i("$TAG Configuring Core")
         core.videoCodecPriorityPolicy = CodecPriorityPolicy.Auto
 
         updateFriendListsSubscriptionDependingOnDefaultAccount()
 
         computeUserAgent()
-        Log.i("$TAG Core has been created with user-agent [${core.userAgent}], starting it")
+        Log.i("$TAG Core has been configured with user-agent [${core.userAgent}], starting it")
         core.start()
 
         contactsManager.onCoreStarted(core)
@@ -252,7 +260,6 @@ class CoreContext @UiThread constructor(val context: Context) : HandlerThread("C
         audioManager.registerAudioDeviceCallback(audioDeviceCallback, coreThread)
 
         Log.i("$TAG Report Core created and started")
-        Looper.loop()
     }
 
     @Deprecated("Deprecated in Java")

app/src/main/java/org/linphone/notifications/NotificationsManager.kt

@@ -379,8 +379,6 @@ class NotificationsManager @MainThread constructor(private val context: Context)
     fun onCoreStarted(core: Core) {
         Log.i("$TAG Core has been started")
         core.addListener(coreListener)
-
-        ShortcutUtils.createShortcutsToChatRooms(context)
     }
 
     @WorkerThread

app/src/main/java/org/linphone/ui/assistant/AssistantActivity.kt

@@ -54,10 +54,6 @@ class AssistantActivity : GenericActivity() {
         binding = DataBindingUtil.setContentView(this, R.layout.assistant_activity)
         binding.lifecycleOwner = this
 
-        while (!coreContext.isReady()) {
-            Thread.sleep(20)
-        }
-
         coreContext.postOnCoreThread { core ->
             if (core.accountList.isEmpty()) {
                 Log.i("$TAG No account configured, disabling back gesture")

app/src/main/java/org/linphone/ui/main/MainActivity.kt

@@ -29,12 +29,12 @@ import android.os.Bundle
 import android.os.Parcelable
 import android.view.Gravity
 import android.view.ViewGroup
-import android.view.ViewTreeObserver
 import androidx.annotation.DrawableRes
 import androidx.annotation.MainThread
 import androidx.annotation.UiThread
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.core.view.children
+import androidx.core.view.doOnAttach
 import androidx.databinding.DataBindingUtil
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.lifecycleScope
@@ -91,7 +91,7 @@ class MainActivity : GenericActivity() {
         binding.lifecycleOwner = this
 
         while (!coreContext.isReady()) {
-            Thread.sleep(20)
+            Thread.sleep(50)
         }
 
         if (checkSelfPermission(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
@@ -158,25 +158,14 @@ class MainActivity : GenericActivity() {
             }
         }
 
-        // Wait for fragment to be displayed before hiding the splashscreen
+        binding.root.doOnAttach {
-        binding.root.viewTreeObserver.addOnPreDrawListener(
+            Log.i("$TAG Report UI has been fully drawn (TTFD)")
-            object : ViewTreeObserver.OnPreDrawListener {
+            try {
-                override fun onPreDraw(): Boolean {
+                reportFullyDrawn()
-                    return if (sharedViewModel.isFirstFragmentReady) {
+            } catch (se: SecurityException) {
-                        Log.i("$TAG Report UI has been fully drawn (TTFD)")
+                Log.e("$TAG Security exception when doing reportFullyDrawn(): $se")
-                        try {
-                            reportFullyDrawn()
-                        } catch (se: SecurityException) {
-                            Log.e("$TAG Security exception when doing reportFullyDrawn(): $se")
-                        }
-                        binding.root.viewTreeObserver.removeOnPreDrawListener(this)
-                        true
-                    } else {
-                        false
-                    }
-                }
             }
-        )
+        }
     }
 
     override fun onPostCreate(savedInstanceState: Bundle?) {

app/src/main/java/org/linphone/ui/main/chat/fragment/ConversationsListFragment.kt

@@ -191,7 +191,6 @@ class ConversationsListFragment : AbstractTopBarFragment() {
 
             (view.parent as? ViewGroup)?.doOnPreDraw {
                 startPostponedEnterTransition()
-                sharedViewModel.isFirstFragmentReady = true
             }
         }
 

app/src/main/java/org/linphone/ui/main/contacts/fragment/ContactsListFragment.kt

@@ -131,7 +131,6 @@ class ContactsListFragment : AbstractTopBarFragment() {
 
             (view.parent as? ViewGroup)?.doOnPreDraw {
                 startPostponedEnterTransition()
-                sharedViewModel.isFirstFragmentReady = true
             }
         }
 

app/src/main/java/org/linphone/ui/main/history/fragment/HistoryListFragment.kt

@@ -197,7 +197,6 @@ class HistoryListFragment : AbstractTopBarFragment() {
 
             (view.parent as? ViewGroup)?.doOnPreDraw {
                 startPostponedEnterTransition()
-                sharedViewModel.isFirstFragmentReady = true
             }
         }
 

app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingsListFragment.kt

@@ -137,7 +137,6 @@ class MeetingsListFragment : AbstractTopBarFragment() {
 
             (view.parent as? ViewGroup)?.doOnPreDraw {
                 startPostponedEnterTransition()
-                sharedViewModel.isFirstFragmentReady = true
 
                 if (currentCount < newCount) {
                     scrollToToday()

app/src/main/java/org/linphone/ui/main/viewmodel/SharedMainViewModel.kt

@@ -28,9 +28,6 @@ import org.linphone.ui.main.chat.model.MessageModel
 import org.linphone.utils.Event
 
 class SharedMainViewModel @UiThread constructor() : ViewModel() {
-    // When set to true, it will hide the splashscreen
-    var isFirstFragmentReady: Boolean = false
-
     /* Sliding Pane & navigation related */
 
     val isSlidingPaneSlideable = MutableLiveData<Boolean>()