Ensure code only run when created

Author: Mygod

mobile/src/main/java/com/github/shadowsocks/ProfileConfigFragment.kt

@@ -32,6 +32,7 @@ import android.view.MenuItem
 import android.view.View
 import androidx.appcompat.app.AlertDialog
 import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.whenCreated
 import androidx.preference.*
 import com.github.shadowsocks.database.Profile
 import com.github.shadowsocks.database.ProfileManager
@@ -171,7 +172,7 @@ class ProfileConfigFragment : PreferenceFragmentCompat(),
         super.onAttach(context)
         receiver = context.listenForPackageChanges(false) {
             lifecycleScope.launch(Dispatchers.Main) {   // wait until changes were flushed
-                lifecycleScope.launchWhenCreated { initPlugins() }
+                whenCreated { initPlugins() }
             }
         }
     }

mobile/src/main/java/com/github/shadowsocks/widget/StatsBar.kt

@@ -30,12 +30,14 @@ import androidx.appcompat.widget.TooltipCompat
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.observe
+import androidx.lifecycle.whenStarted
 import com.github.shadowsocks.MainActivity
 import com.github.shadowsocks.R
 import com.github.shadowsocks.bg.BaseService
 import com.github.shadowsocks.net.HttpsTest
 import com.google.android.material.bottomappbar.BottomAppBar
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
 class StatsBar @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null,
@@ -76,8 +78,8 @@ class StatsBar @JvmOverloads constructor(context: Context, attrs: AttributeSet?
 
     fun changeState(state: BaseService.State) {
         val activity = context as MainActivity
-        fun postWhenStarted(what: () -> Unit) = activity.lifecycleScope.launchWhenStarted {
-            withContext(Dispatchers.Main) { what() }
+        fun postWhenStarted(what: () -> Unit) = activity.lifecycleScope.launch {
+            withContext(Dispatchers.Main) { activity.whenStarted { what() } }
         }
         if ((state == BaseService.State.Connected).also { hideOnScroll = it }) {
             postWhenStarted { performShow() }