layout initialization fix

app/src/main/java/com/vanced/manager/adapter/SectionPageMusicAdapter.kt

@@ -0,0 +1,20 @@
+package com.vanced.manager.adapter
+
+import androidx.fragment.app.Fragment
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import com.vanced.manager.ui.fragments.MicrogChangelogFragment
+import com.vanced.manager.ui.fragments.MusicChangelogFragment
+
+class SectionPageMusicAdapter(fragment: Fragment) : FragmentStateAdapter(fragment) {
+
+    override fun getItemCount(): Int = 2
+
+    override fun createFragment(position: Int): Fragment {
+        return when (position) {
+            0 -> MusicChangelogFragment()
+            1 -> MicrogChangelogFragment()
+            else -> throw NotImplementedError()
+        }
+    }
+
+}

app/src/main/java/com/vanced/manager/adapter/SectionVariantAdapter.kt

@@ -2,11 +2,10 @@ package com.vanced.manager.adapter
 
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
-import androidx.fragment.app.FragmentManager
 import androidx.viewpager2.adapter.FragmentStateAdapter
 import com.vanced.manager.ui.fragments.MainFragment
 
-class SectionVariantAdapter(fragmentActivity: FragmentActivity): FragmentStateAdapter(fragmentActivity) {
+class SectionVariantAdapter(fragmentActivity: FragmentActivity) : FragmentStateAdapter(fragmentActivity) {
 
     override fun getItemCount(): Int = 3
 

app/src/main/java/com/vanced/manager/model/DataModel.kt

@@ -4,11 +4,19 @@ import android.content.Context
 import android.graphics.drawable.Drawable
 import android.os.Build
 import androidx.preference.PreferenceManager.getDefaultSharedPreferences
+import com.vanced.manager.utils.InternetTools.baseUrl
 import com.vanced.manager.utils.InternetTools.getJsonInt
 import com.vanced.manager.utils.InternetTools.getJsonString
+import com.vanced.manager.utils.InternetTools.getObjectFromJson
 import com.vanced.manager.utils.PackageHelper.isPackageInstalled
 import com.vanced.manager.R
 import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.async
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 open class DataModel(
     private val jsonName: String, 
@@ -24,30 +32,54 @@ open class DataModel(
             else -> "com.vanced.android.youtube.music"
         }
     
+    /*
+    private var versionName: String = ""
+    private var installedVersionName: String = ""
+    private var changelog: String = ""
+        
+    private var versionCode: Int = 0
+    private var installedVersionCode: Int = 0
+    */
+    
     open fun isAppInstalled(): Boolean = isPackageInstalled(appPkg, context.packageManager)
     
-    open fun getVersionName(): String = runBlocking { getJsonString("$jsonName.json", "version", context) }
+    open fun getVersionName(): String = runBlocking(Dispatchers.IO) {
+        getJsonString("$jsonName.json", "version", context)
+    }
     
-    open fun getVersionCode(): Int = runBlocking { getJsonInt("$jsonName.json", "versionCode", context) }
+    open fun getVersionCode(): Int = runBlocking(Dispatchers.IO) {
+        getJsonInt("$jsonName.json", "versionCode", context)
+    }
     
-    open fun getInstalledVersionName(): String = getPkgVersion(isAppInstalled(), appPkg)
+    open fun getInstalledVersionName(): String = runBlocking(Dispatchers.IO) {
+        getPkgVersionName(isAppInstalled(), appPkg)
+    }
     
-    open fun getInstalledVersionCode(): Int = runBlocking { getJsonInt("$jsonName.json", "versionCode", context) }
+    open fun getInstalledVersionCode(): Int = runBlocking(Dispatchers.IO) {
+        getPkgVersionCode(isAppInstalled(), appPkg)
+    }
     
     open fun getButtonTxt(): String = compareInt(getInstalledVersionCode(), getVersionCode())
     
     open fun getButtonIcon(): Drawable? = compareIntDrawable(getInstalledVersionCode(), getVersionCode())
 
-    private fun getPkgVersion(toCheck: Boolean, pkg: String): String  {
+    open fun getChangelog(): String = runBlocking(Dispatchers.IO) {
+        if (jsonName == "vanced")
+            getObjectFromJson("$baseUrl/changelog/${getVersionName().replace('.', '_')}.json", "message")
+        else
+            getObjectFromJson("https://ytvanced.github.io/VancedBackend/$jsonName.json", "changelog")
+    }
+    
+    private fun getPkgVersionName(toCheck: Boolean, pkg: String): String  {
         return if (toCheck) {
-            context.packageManager.getPackageInfo(pkg, 0).versionName
+            context.packageManager.getPackageInfo(pkg, 0).versionName.removeSuffix("-vanced")
         } else {
             context.getString(R.string.unavailable)
         }
     }
 
     @Suppress("DEPRECATION")
-    private fun getPkgVerCode(toCheck: Boolean, pkg: String): Int {
+    private fun getPkgVersionCode(toCheck: Boolean, pkg: String): Int {
         return if (toCheck) {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P)
                 context.packageManager.getPackageInfo(pkg, 0).longVersionCode.and(0xFFFFFFFF).toInt()

app/src/main/java/com/vanced/manager/ui/MainActivity.kt

@@ -12,6 +12,7 @@ import com.crowdin.platform.Crowdin
 import com.crowdin.platform.LoadingStateListener
 import com.google.android.material.tabs.TabLayoutMediator
 import com.google.android.material.tabs.TabLayout
+import com.vanced.manager.adapter.SectionVariantAdapter
 import com.google.firebase.messaging.FirebaseMessaging
 import com.vanced.manager.R
 import com.vanced.manager.databinding.ActivityMainBinding
@@ -21,7 +22,6 @@ import com.vanced.manager.utils.AppUtils.installing
 import com.vanced.manager.utils.InternetTools
 import com.vanced.manager.utils.PackageHelper
 import com.vanced.manager.utils.ThemeHelper.setFinalTheme
-import com.vanced.manager.adapter.SectionVariantAdapter
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -45,28 +45,22 @@ class MainActivity : AppCompatActivity() {
     private val tabListener = object : TabLayout.OnTabSelectedListener {
 
         override fun onTabSelected(tab: TabLayout.Tab) {
-            getDefaultSharedPreferences(this@MainActivity).edit().apply {
+            getDefaultSharedPreferences(this@MainActivity).edit().putString("vanced_variant", 
                 when (tab.position) {
-                    0 -> putString("vanced_variant", "nonroot").apply()
+                    1 -> "music"
-                    1 -> putString("vanced_variant", "music").apply()
+                    2 -> "root"
-                    2 -> putString("vanced_variant", "root").apply()
+                    else -> "nonroot"
                 }
-            }
+            )
 
         }
 
         override fun onTabUnselected(tab: TabLayout.Tab) {
-            TODO("There's nothing to do here actually")
+            return
         }
 
         override fun onTabReselected(tab: TabLayout.Tab) {
-            getDefaultSharedPreferences(this@MainActivity).edit().apply {
+            return
-                when (tab.position) {
-                    0 -> putString("vanced_variant", "nonroot").apply()
-                    1 -> putString("vanced_variant", "music").apply()
-                    2 -> putString("vanced_variant", "root").apply()
-                }
-            }
         }
 
     }
@@ -75,27 +69,26 @@ class MainActivity : AppCompatActivity() {
         setFinalTheme(this)
         super.onCreate(savedInstanceState)
         binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
+        val tabToSelect = 
+        when (getDefaultSharedPreferences(this@MainActivity).getString("vanced_variant", "nonroot")) {
+            "music" -> 1
+            "root" -> 2
+            else -> 0
+        }
 
         with(binding) {
             lifecycleOwner = this@MainActivity
             setSupportActionBar(homeToolbar)
             mainViewpager.adapter = SectionVariantAdapter(this@MainActivity)
+            mainViewpager.setUserInputEnabled(false)
             TabLayoutMediator(mainTablayout, mainViewpager) { tab, position ->
-                when (position) {
+                tab.text = when (position) {
-                    0 -> tab.text = "nonroot"
+                    1 -> "music"
-                    1 -> tab.text = "Music"
+                    2 -> "root"
-                    2 -> tab.text = "root"
+                    else -> "nonroot"
                 }
             }.attach()
-            
+            mainTablayout.getTabAt(tabToSelect)?.select()
-            when (getDefaultSharedPreferences(this@MainActivity).getString("vanced_variant", "nonroot")) {
-                "nonroot" -> mainTablayout.getTabAt(0)?.select()
-                "music" -> mainTablayout.getTabAt(1)?.select()
-                "root" -> mainTablayout.getTabAt(2)?.select()
-            }
-            
-            mainTablayout.addOnTabSelectedListener(tabListener)
-            
         }
 
         initDialogs()
@@ -104,14 +97,15 @@ class MainActivity : AppCompatActivity() {
 
     override fun onPause() {
         super.onPause()
-        binding.mainTablayout.removeOnTabSelectedListener(tabListener)
         Crowdin.unregisterDataLoadingObserver(loadingObserver)
+        binding.mainTablayout.removeOnTabSelectedListener(tabListener)
     }
 
     override fun onResume() {
         setFinalTheme(this)
         super.onResume()
         Crowdin.registerDataLoadingObserver(loadingObserver)
+        binding.mainTablayout.addOnTabSelectedListener(tabListener)
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {

app/src/main/java/com/vanced/manager/ui/fragments/HomeFragment.kt

@@ -13,6 +13,7 @@ import androidx.localbroadcastmanager.content.LocalBroadcastManager
 import androidx.navigation.findNavController
 import androidx.preference.PreferenceManager.getDefaultSharedPreferences
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
 import com.topjohnwu.superuser.Shell
 import com.vanced.manager.R
@@ -48,52 +49,60 @@ class HomeFragment : Fragment(), View.OnClickListener {
         super.onViewCreated(view, savedInstanceState)
         binding.viewModel = viewModel
         
-        val arg = "variant"
         val variant = getDefaultSharedPreferences(requireActivity()).getString("vanced_variant", "nonroot")
+        val selectedTab = requireActivity().findViewById<TabLayout>(R.id.main_tablayout).getSelectedTabPosition()
         
         with(binding) {
-            when (variant) {
+            when (selectedTab) {
-                "nonroot" -> includeMusicLayout.musicCard.visibility = View.GONE
+                1 -> includeVancedLayout.vancedCard.visibility = View.GONE
-                "music" -> includeVancedLayout.vancedCard.visibility = View.GONE
+                2 -> {
-                "root" -> {
                     includeMusicLayout.musicCard.visibility = View.GONE
                     includeMicrogLayout.microgCard.visibility = View.GONE
                 }
+                else -> includeMusicLayout.musicCard.visibility = View.GONE
             }
-        }
             
-        with(binding) {
             includeVancedLayout.vancedInstallbtn.setOnClickListener(this@HomeFragment)
             includeVancedLayout.vancedUninstallbtn.setOnClickListener(this@HomeFragment)
             includeMicrogLayout.microgInstallbtn.setOnClickListener(this@HomeFragment)
             includeMicrogLayout.microgUninstallbtn.setOnClickListener(this@HomeFragment)
             includeChangelogsLayout.changelogButton.setOnClickListener(this@HomeFragment)
-        }
 
-        binding.includeVancedLayout.vancedCard.setOnLongClickListener {
+            includeVancedLayout.vancedCard.setOnLongClickListener {
-            versionToast("Vanced", viewModel.vanced.get()?.getInstalledVersionName()!!)
+                versionToast("Vanced", viewModel?.vanced?.get()?.getInstalledVersionName()!!)
-            true
+                true
-        }
+            }
 
-        binding.includeMicrogLayout.microgCard.setOnLongClickListener {
+            includeMicrogLayout.microgCard.setOnLongClickListener {
-            versionToast("MicroG", viewModel.microg.get()?.getInstalledVersionName()!!)
+                versionToast("MicroG", viewModel?.microg?.get()?.getInstalledVersionName()!!)
-            true
+                true
+            }
         }
 
         with(binding.includeChangelogsLayout) {
-            viewpager.adapter = if (variant == "root") SectionPageRootAdapter(this@HomeFragment) else SectionPageAdapter(this@HomeFragment)
+            viewpager.adapter = 
+            when (selectedTab) {
+                1 -> SectionPageMusicAdapter(this@HomeFragment)
+                2 -> SectionPageRootAdapter(this@HomeFragment)
+                else -> SectionPageAdapter(this@HomeFragment)
+            }
             TabLayoutMediator(tablayout, viewpager) { tab, position ->
-                if (variant == "root")
+                tab.text = 
-                    when (position) {
+                when (selectedTab) {
-                        0 -> tab.text = "Vanced"
+                    1 -> when (position) {
-                        1 -> tab.text = "Manager"
+                            0 -> "Vanced"
-                    }
+                            else -> "Manager"
-                else
+                         }
-                    when (position) {
+                    2 -> when (position) {
-                        0 -> tab.text = "Vanced"
+                            0 -> "Music"
-                        1 -> tab.text = "MicroG"
+                            else -> "MicroG"
-                        2 -> tab.text = "Manager"
+                         }
-                    }
+                    else -> when (position) {
+                                0 -> "Vanced"
+                                1 -> "MicroG"
+                                else -> "Manager"
+                            }
+                }
 
             }.attach()
         }

app/src/main/java/com/vanced/manager/ui/fragments/MainFragment.kt

@@ -9,18 +9,21 @@ import android.view.animation.AnimationUtils
 import android.widget.LinearLayout
 import androidx.databinding.DataBindingUtil
 import androidx.navigation.findNavController
+import androidx.navigation.NavController
 import androidx.navigation.NavDestination
+import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.setupWithNavController
 import androidx.fragment.app.Fragment
 import com.google.android.material.appbar.MaterialToolbar
+import com.google.android.material.tabs.TabLayout
 import com.vanced.manager.databinding.FragmentMainBinding
 import com.vanced.manager.R
 
 class MainFragment : Fragment() {
     
     private lateinit var binding: FragmentMainBinding
-    private val navHost by lazy { activity?.findNavController(R.id.nav_host) }
+    private lateinit var navHost: NavController
     
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
@@ -33,42 +36,51 @@ class MainFragment : Fragment() {
     
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+        val navHostFragment = childFragmentManager.findFragmentById(R.id.nav_host) as NavHostFragment
+        navHost = navHostFragment.navController
     
-        val appBarConfiguration = AppBarConfiguration(navHost?.graph!!)
+        val appBarConfiguration = AppBarConfiguration(navHost.graph)
-        activity?.findViewById<MaterialToolbar>(R.id.home_toolbar)?.setupWithNavController(navHost!!, appBarConfiguration)
+        requireActivity().findViewById<MaterialToolbar>(R.id.home_toolbar).setupWithNavController(navHost, appBarConfiguration)
+        val tabLayout = requireActivity().findViewById<TabLayout>(R.id.main_tablayout)
         
         navHost?.addOnDestinationChangedListener { _, currFrag: NavDestination, _ ->
             setDisplayHomeAsUpEnabled(currFrag.id != R.id.home_fragment)
-            with (activity) {
+            with (requireActivity()) {
-                val tabHide = this.let { AnimationUtils.loadAnimation(it, R.anim.tablayout_exit) }
+                val tabHide = AnimationUtils.loadAnimation(this, R.anim.tablayout_exit)
-                val tabShow = this.let { AnimationUtils.loadAnimation(it, R.anim.tablayout_enter) }
+                val tabShow = AnimationUtils.loadAnimation(this, R.anim.tablayout_enter)
                 if (currFrag.id != R.id.home_fragment) {
-                    this?.findViewById<LinearLayout>(R.id.variant_tab_container)?.startAnimation(tabHide)
+                    if (tabLayout.visibility != View.GONE) {
-                    this?.findViewById<LinearLayout>(R.id.variant_tab_container)?.visibility = View.GONE
+                        tabLayout.startAnimation(tabHide)
+                        tabLayout.visibility = View.GONE
+                    }
                 } else {
-                    this?.findViewById<LinearLayout>(R.id.variant_tab_container)?.visibility = View.VISIBLE
+                   if (tabLayout.visibility != View.VISIBLE) {
-                    this?.findViewById<LinearLayout>(R.id.variant_tab_container)?.startAnimation(tabShow)
+                        tabLayout.visibility = View.VISIBLE
+                        tabLayout.startAnimation(tabShow)
+                    }
                 }
             }
         }
     }
     
     private fun setDisplayHomeAsUpEnabled(isNeeded: Boolean) {
-        activity?.findViewById<MaterialToolbar>(R.id.home_toolbar)?.navigationIcon = if (isNeeded) activity?.getDrawable(R.drawable.ic_keyboard_backspace_black_24dp) else null
+        with(requireActivity()) {
+            findViewById<MaterialToolbar>(R.id.home_toolbar).navigationIcon = if (isNeeded) getDrawable(R.drawable.ic_keyboard_backspace_black_24dp) else null
+        }
     }
     
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
             R.id.toolbar_about -> {
-                navHost?.navigate(R.id.toAboutFragment)
+                navHost.navigate(R.id.toAboutFragment)
                 return true
             }
             R.id.toolbar_settings -> {
-                navHost?.navigate(R.id.action_settingsFragment)
+                navHost.navigate(R.id.action_settingsFragment)
                 return true
             }
             R.id.dev_settings -> {
-                navHost?.navigate(R.id.toDevSettingsFragment)
+                navHost.navigate(R.id.toDevSettingsFragment)
                 return true
             }
             else -> super.onOptionsItemSelected(item)

app/src/main/java/com/vanced/manager/ui/fragments/ManagerChangelogFragment.kt

@@ -4,28 +4,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.TextView
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
 import com.vanced.manager.R
-import com.vanced.manager.utils.InternetTools
+import com.vanced.manager.databinding.FragmentManagerChangelogBinding
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 
 class ManagerChangelogFragment : Fragment() {
 
+    private lateinit var binding: FragmentManagerChangelogBinding
+    
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_manager_changelog, container, false)
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_manager_changelog, container, false)
+        return binding.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        CoroutineScope(Dispatchers.Main).launch {
-            val changelog = InternetTools.getObjectFromJson("https://ytvanced.github.io/VancedBackend/manager.json", "changelog")
-            view.findViewById<TextView>(R.id.manager_changelog).text = changelog
-        }
-    }
 }

app/src/main/java/com/vanced/manager/ui/fragments/MicrogChangelogFragment.kt

@@ -4,29 +4,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.TextView
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
-import androidx.preference.PreferenceManager
 import com.vanced.manager.R
-import com.vanced.manager.utils.InternetTools
+import com.vanced.manager.databinding.FragmentMicrogChangelogBinding
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 
 class MicrogChangelogFragment : Fragment() {
 
+    private lateinit var binding: FragmentMicrogChangelogBinding
+    
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_microg_changelog, container, false)
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_microg_changelog, container, false)
+        return binding.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        CoroutineScope(Dispatchers.Main).launch {
-            val baseUrl = PreferenceManager.getDefaultSharedPreferences(activity).getString("install_url", InternetTools.baseUrl)
-            view.findViewById<TextView>(R.id.microg_changelog).text = InternetTools.getObjectFromJson("$baseUrl/microg.json", "changelog")
-        }
-    }
 }

app/src/main/java/com/vanced/manager/ui/fragments/MusicChangelogFragment.kt

@@ -0,0 +1,24 @@
+package com.vanced.manager.ui.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import com.vanced.manager.R
+import com.vanced.manager.databinding.FragmentMicrogChangelogBinding
+
+class MusicChangelogFragment : Fragment() {
+
+    private lateinit var binding: FragmentMicrogChangelogBinding
+    
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_music_changelog, container, false)
+        return binding.root
+    }
+
+}

app/src/main/java/com/vanced/manager/ui/fragments/VancedChangelogFragment.kt

@@ -4,32 +4,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.TextView
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
-import androidx.preference.PreferenceManager
 import com.vanced.manager.R
-import com.vanced.manager.utils.InternetTools
+import com.vanced.manager.databinding.FragmentVancedChangelogBinding
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 
 class VancedChangelogFragment : Fragment() {
 
+    private lateinit var binding: FragmentVancedChangelogBinding
+    
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_vanced_changelog, container, false)
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_vanced_changelog, container, false)
+        return binding.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        CoroutineScope(Dispatchers.Main).launch {
-            val vancedVersion = activity?.let { InternetTools.getJsonString("vanced.json", "version", it).replace('.', '_') }
-            val baseUrl = PreferenceManager.getDefaultSharedPreferences(activity).getString("install_url", InternetTools.baseUrl)
-
-            val changelog = InternetTools.getObjectFromJson("$baseUrl/changelog/$vancedVersion.json", "message")
-            view.findViewById<TextView>(R.id.vanced_changelog).text = changelog
-        }
-    }
 }

app/src/main/java/com/vanced/manager/ui/viewmodels/HomeViewModel.kt

@@ -12,6 +12,7 @@ import androidx.browser.customtabs.CustomTabsIntent
 import androidx.core.content.ContextCompat
 import androidx.core.content.ContextCompat.startActivity
 import androidx.databinding.ObservableField
+import androidx.databinding.ObservableBoolean
 import androidx.lifecycle.AndroidViewModel
 import androidx.preference.PreferenceManager.getDefaultSharedPreferences
 import com.crowdin.platform.Crowdin
@@ -25,19 +26,21 @@ open class HomeViewModel(application: Application): AndroidViewModel(application
 
     //val variant = getDefaultSharedPreferences(application).getString("vanced_variant", "nonroot")
     
-    val fetching = ObservableField<Boolean>()
+    val fetching = ObservableBoolean()
     
     val vanced = ObservableField<DataModel>()
     val microg = ObservableField<DataModel>()
     val music = ObservableField<DataModel>()
+    val manager = ObservableField<DataModel>()
     
     fun fetchData() {
         CoroutineScope(Dispatchers.IO).launch {
             fetching.set(true)
             Crowdin.forceUpdate(getApplication())
-            vanced.set(DataModel("vanced.json", getApplication()))
+            vanced.set(DataModel("vanced", getApplication()))
-            microg.set(DataModel("microg.json", getApplication()))
+            microg.set(DataModel("microg", getApplication()))
-            music.set(DataModel("music.json", getApplication()))
+            music.set(DataModel("music", getApplication()))
+            manager.set(DataModel("manager", getApplication()))
             fetching.set(false)
         }
     }

app/src/main/res/layout/activity_main.xml

@@ -28,14 +28,15 @@
         <LinearLayout
             android:id="@+id/variant_tab_container"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
+            android:layout_height="wrap_content"
-            android:orientation="horizontal">
+            android:layout_below="@id/home_appbar"
+            android:orientation="vertical">
             
             <com.google.android.material.tabs.TabLayout
                 android:id="@+id/main_tablayout"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:background="?colorSurfaceVariant"
+                android:background="?colorSurface"
                 app:tabIndicatorColor="?colorPrimary"
                 app:tabSelectedTextColor="?colorPrimary"
                 app:tabTextColor="?colorPrimary" />

app/src/main/res/layout/fragment_home.xml

@@ -30,7 +30,7 @@
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:orientation="horizontal">
+                android:orientation="vertical">
 
                 <include
                     android:id="@+id/include_vanced_layout"

app/src/main/res/layout/fragment_main.xml

@@ -4,20 +4,22 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools">
     
-    <LinearLayout
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="match_parent">
-        android:orientation="horizontal">
         
-         <fragment
+         <androidx.fragment.app.FragmentContainerView
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:id="@+id/nav_host"
             android:name="androidx.navigation.fragment.NavHostFragment"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
             app:defaultNavHost="true"
-            app:navGraph="@navigation/mobile_navigation"
+            app:navGraph="@navigation/mobile_navigation" />
-            tools:context=".ui.fragments.MainFragment" />
         
-    </LinearLayout>
+    </androidx.constraintlayout.widget.ConstraintLayout>
     
 </layout>

app/src/main/res/layout/fragment_manager_changelog.xml

@@ -1,16 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
+<layout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tools="http://schemas.android.com/tools">
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.fragments.MicrogChangelogFragment">
     
-    <TextView
+    <data>
-        android:id="@+id/manager_changelog"
+
+        <variable
+            name="viewModel"
+            type="com.vanced.manager.ui.viewmodels.HomeViewModel" />
+
+    </data>
+    
+    <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent">
-        android:textSize="16sp"
-        android:text="" />
 
-</FrameLayout>
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:textSize="16sp"
+            android:text="@{viewModel.manager.changelog}"/>
+
+    </LinearLayout>
+    
+</layout>

app/src/main/res/layout/fragment_microg_changelog.xml

@@ -1,18 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
+<layout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tools="http://schemas.android.com/tools">
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.fragments.MicrogChangelogFragment">
     
-    <TextView
+    <data>
-        android:id="@+id/microg_changelog"
+
+        <variable
+            name="viewModel"
+            type="com.vanced.manager.ui.viewmodels.HomeViewModel" />
+
+    </data>
+    
+    <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
-        android:textSize="16sp"
+        tools:context=".ui.fragments.MicrogChangelogFragment">
-        android:text="Changes:\n - Added casting support\n
-- Fixed notifications\n\nMicroG now requires Vanced 14.21.54 and up"
-        tools:ignore="HardcodedText" />
 
-</FrameLayout>
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:textSize="16sp"
+            android:text="@{viewModel.microg.changelog}"/>
+
+    </LinearLayout>
+    
+</layout>

app/src/main/res/layout/fragment_music_changelog.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    
+    <data>
+
+        <variable
+            name="viewModel"
+            type="com.vanced.manager.ui.viewmodels.HomeViewModel" />
+
+    </data>
+    
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".ui.fragments.MusicChangelogFragment">
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:textSize="16sp"
+            android:text="@{viewModel.music.changelog}"/>
+
+    </LinearLayout>
+    
+</layout>

app/src/main/res/layout/fragment_vanced_changelog.xml

@@ -1,15 +1,28 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
+<layout
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tools="http://schemas.android.com/tools">
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.fragments.VancedChangelogFragment">
     
-    <TextView
+    <data>
-        android:id="@+id/vanced_changelog"
+
+        <variable
+            name="viewModel"
+            type="com.vanced.manager.ui.viewmodels.HomeViewModel" />
+
+    </data>
+    
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:textSize="16sp" />
+        tools:context=".ui.fragments.VancedChangelogFragment">
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:textSize="16sp"
+            android:text="@{viewModel.vanced.changelog}"/>
+
+    </LinearLayout>
+    
+</layout>
 
-</FrameLayout>

app/src/main/res/layout/include_microg.xml

@@ -94,7 +94,7 @@
                     <TextView
                         android:id="@+id/microg_installed_version"
                         style="@style/AppVer.Bold"
-                        android:text="@{viewModel.microg.installedVersionCode}" />
+                        android:text="@{viewModel.microg.installedVersionName}" />
 
                 </LinearLayout>