[SES-2021] Optimise XML loading

app/src/main/java/org/thoughtcrime/securesms/BaseActionBarActivity.java

@@ -30,13 +30,15 @@ public abstract class BaseActionBarActivity extends AppCompatActivity {
   private static final String TAG = BaseActionBarActivity.class.getSimpleName();
   public ThemeState currentThemeState;
 
+  private Resources.Theme modifiedTheme;
+
   private TextSecurePreferences getPreferences() {
     ApplicationContext appContext = (ApplicationContext) getApplicationContext();
     return appContext.textSecurePreferences;
   }
 
   @StyleRes
-  public int getDesiredTheme() {
+  private int getDesiredTheme() {
     ThemeState themeState = ActivityUtilitiesKt.themeState(getPreferences());
     int userSelectedTheme = themeState.getTheme();
 
@@ -58,16 +60,20 @@ public int getDesiredTheme() {
   }
 
   @StyleRes @Nullable
-  public Integer getAccentTheme() {
+  private Integer getAccentTheme() {
     if (!getPreferences().hasPreference(SELECTED_ACCENT_COLOR)) return null;
     ThemeState themeState = ActivityUtilitiesKt.themeState(getPreferences());
     return themeState.getAccentStyle();
   }
 
   @Override
   public Resources.Theme getTheme() {
+    if (modifiedTheme != null) {
+        return modifiedTheme;
+    }
+
     // New themes
-    Resources.Theme modifiedTheme = super.getTheme();
+    modifiedTheme = super.getTheme();
     modifiedTheme.applyStyle(getDesiredTheme(), true);
     Integer accentTheme = getAccentTheme();
     if (accentTheme != null) {

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt

@@ -61,7 +61,6 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import network.loki.messenger.R
 import network.loki.messenger.databinding.ActivityConversationV2Binding
-import network.loki.messenger.databinding.ViewVisibleMessageBinding
 import network.loki.messenger.libsession_util.util.ExpiryMode
 import nl.komponents.kovenant.ui.successUi
 import org.session.libsession.messaging.MessagingModuleConfiguration
@@ -1558,8 +1557,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
 
         if (indexInAdapter < 0 || indexInAdapter >= adapter.itemCount) { return }
         val viewHolder = binding?.conversationRecyclerView?.findViewHolderForAdapterPosition(indexInAdapter) as? ConversationAdapter.VisibleMessageViewHolder ?: return
-        val visibleMessageView = ViewVisibleMessageBinding.bind(viewHolder.view).visibleMessageView
-        visibleMessageView.playVoiceMessage()
+        viewHolder.view.playVoiceMessage()
     }
 
     override fun sendMessage() {

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationAdapter.kt

@@ -5,9 +5,7 @@ import android.content.Intent
 import android.database.Cursor
 import android.util.SparseArray
 import android.util.SparseBooleanArray
-import android.view.LayoutInflater
 import android.view.MotionEvent
-import android.view.View
 import android.view.ViewGroup
 import androidx.annotation.WorkerThread
 import androidx.core.util.getOrDefault
@@ -20,14 +18,11 @@ import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import network.loki.messenger.R
-import network.loki.messenger.databinding.ViewVisibleMessageBinding
 import org.session.libsession.messaging.contacts.Contact
-import org.session.libsession.utilities.TextSecurePreferences
 import org.thoughtcrime.securesms.conversation.v2.messages.ControlMessageView
 import org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageView
 import org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageViewDelegate
 import org.thoughtcrime.securesms.database.CursorRecyclerViewAdapter
-import org.thoughtcrime.securesms.database.MmsSmsColumns
 import org.thoughtcrime.securesms.database.model.MessageRecord
 import org.thoughtcrime.securesms.dependencies.DatabaseComponent
 import org.thoughtcrime.securesms.mms.GlideRequests
@@ -90,7 +85,7 @@ class ConversationAdapter(
         }
     }
 
-    class VisibleMessageViewHolder(val view: View) : ViewHolder(view)
+    class VisibleMessageViewHolder(val view: VisibleMessageView) : ViewHolder(view)
     class ControlMessageViewHolder(val view: ControlMessageView) : ViewHolder(view)
 
     override fun getItemViewType(cursor: Cursor): Int {
@@ -103,7 +98,7 @@ class ConversationAdapter(
         @Suppress("NAME_SHADOWING")
         val viewType = ViewType.allValues[viewType]
         return when (viewType) {
-            ViewType.Visible -> VisibleMessageViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.view_visible_message, parent, false))
+            ViewType.Visible -> VisibleMessageViewHolder(VisibleMessageView(context))
             ViewType.Control -> ControlMessageViewHolder(ControlMessageView(context))
             else -> throw IllegalStateException("Unexpected view type: $viewType.")
         }
@@ -115,7 +110,7 @@ class ConversationAdapter(
         val messageBefore = getMessageBefore(position, cursor)
         when (viewHolder) {
             is VisibleMessageViewHolder -> {
-                val visibleMessageView = ViewVisibleMessageBinding.bind(viewHolder.view).visibleMessageView
+                val visibleMessageView = viewHolder.view
                 val isSelected = selectedItems.contains(message)
                 visibleMessageView.snIsSelected = isSelected
                 visibleMessageView.indexInAdapter = position
@@ -181,7 +176,7 @@ class ConversationAdapter(
 
     override fun onItemViewRecycled(viewHolder: ViewHolder?) {
         when (viewHolder) {
-            is VisibleMessageViewHolder -> viewHolder.view.findViewById<VisibleMessageView>(R.id.visibleMessageView).recycle()
+            is VisibleMessageViewHolder -> viewHolder.view.recycle()
             is ControlMessageViewHolder -> viewHolder.view.recycle()
         }
         super.onItemViewRecycled(viewHolder)

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/ControlMessageView.kt

@@ -25,16 +25,15 @@ class ControlMessageView : LinearLayout {
 
     private val TAG = "ControlMessageView"
 
-    private lateinit var binding: ViewControlMessageBinding
+    private val binding = ViewControlMessageBinding.inflate(LayoutInflater.from(context), this, true)
 
-    constructor(context: Context) : super(context) { initialize() }
-    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { initialize() }
-    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) { initialize() }
+    constructor(context: Context) : super(context)
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
 
     @Inject lateinit var disappearingMessages: DisappearingMessages
 
-    private fun initialize() {
-        binding = ViewControlMessageBinding.inflate(LayoutInflater.from(context), this, true)
+    init {
         layoutParams = RecyclerView.LayoutParams(RecyclerView.LayoutParams.MATCH_PARENT, RecyclerView.LayoutParams.WRAP_CONTENT)
     }
 

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageView.kt

@@ -11,8 +11,10 @@ import android.os.Looper
 import android.util.AttributeSet
 import android.view.Gravity
 import android.view.HapticFeedbackConstants
+import android.view.LayoutInflater
 import android.view.MotionEvent
 import android.view.View
+import android.view.ViewGroup
 import android.widget.FrameLayout
 import android.widget.LinearLayout
 import androidx.annotation.ColorInt
@@ -26,17 +28,17 @@ import androidx.core.view.isVisible
 import androidx.core.view.marginBottom
 import dagger.hilt.android.AndroidEntryPoint
 import network.loki.messenger.R
+import network.loki.messenger.databinding.ViewEmojiReactionsBinding
 import network.loki.messenger.databinding.ViewVisibleMessageBinding
+import network.loki.messenger.databinding.ViewstubVisibleMessageMarkerContainerBinding
 import org.session.libsession.messaging.contacts.Contact
 import org.session.libsession.messaging.contacts.Contact.ContactContext
 import org.session.libsession.messaging.open_groups.OpenGroupApi
 import org.session.libsession.utilities.Address
-import org.session.libsession.utilities.TextSecurePreferences
 import org.session.libsession.utilities.ViewUtil
 import org.session.libsession.utilities.getColorFromAttr
 import org.session.libsession.utilities.modifyLayoutParams
 import org.session.libsignal.utilities.IdPrefix
-import org.session.libsignal.utilities.Log
 import org.thoughtcrime.securesms.conversation.v2.ConversationActivityV2
 import org.thoughtcrime.securesms.database.LastSentTimestampCache
 import org.thoughtcrime.securesms.database.LokiAPIDatabase
@@ -65,7 +67,7 @@ import kotlin.math.sqrt
 private const val TAG = "VisibleMessageView"
 
 @AndroidEntryPoint
-class VisibleMessageView : LinearLayout {
+class VisibleMessageView : FrameLayout {
     private var replyDisabled: Boolean = false
     @Inject lateinit var threadDb: ThreadDatabase
     @Inject lateinit var lokiThreadDb: LokiThreadDatabase
@@ -75,7 +77,16 @@ class VisibleMessageView : LinearLayout {
     @Inject lateinit var mmsDb: MmsDatabase
     @Inject lateinit var lastSentTimestampCache: LastSentTimestampCache
 
-    private val binding by lazy { ViewVisibleMessageBinding.bind(this) }
+    private val binding = ViewVisibleMessageBinding.inflate(LayoutInflater.from(context), this, true)
+
+    private val markerContainerBinding = lazy(LazyThreadSafetyMode.NONE) {
+        ViewstubVisibleMessageMarkerContainerBinding.bind(binding.unreadMarkerContainerStub.inflate())
+    }
+
+    private val emojiReactionsBinding = lazy(LazyThreadSafetyMode.NONE) {
+        ViewEmojiReactionsBinding.bind(binding.emojiReactionsView.inflate())
+    }
+
     private val swipeToReplyIcon = ContextCompat.getDrawable(context, R.drawable.ic_baseline_reply_24)!!.mutate()
     private val swipeToReplyIconRect = Rect()
     private var dx = 0.0f
@@ -94,7 +105,7 @@ class VisibleMessageView : LinearLayout {
     var onPress: ((event: MotionEvent) -> Unit)? = null
     var onSwipeToReply: (() -> Unit)? = null
     var onLongPress: (() -> Unit)? = null
-    val messageContentView: VisibleMessageContentView by lazy { binding.messageContentView.root }
+    val messageContentView: VisibleMessageContentView get() = binding.messageContentView.root
 
     companion object {
         const val swipeToReplyThreshold = 64.0f // dp
@@ -108,20 +119,19 @@ class VisibleMessageView : LinearLayout {
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
     constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
 
-    override fun onFinishInflate() {
-        super.onFinishInflate()
-        initialize()
-    }
-
-    private fun initialize() {
+    init {
         isHapticFeedbackEnabled = true
         setWillNotDraw(false)
         binding.root.disableClipping()
         binding.mainContainer.disableClipping()
         binding.messageInnerContainer.disableClipping()
         binding.messageInnerLayout.disableClipping()
         binding.messageContentView.root.disableClipping()
+
+        // Default layout params
+        layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
     }
+
     // endregion
 
     // region Updating
@@ -203,7 +213,13 @@ class VisibleMessageView : LinearLayout {
         binding.senderNameTextView.text = contact?.displayName(contactContext) ?: senderSessionID
 
         // Unread marker
-        binding.unreadMarkerContainer.isVisible = lastSeen != -1L && message.timestamp > lastSeen && (previous == null || previous.timestamp <= lastSeen) && !message.isOutgoing
+        val shouldShowUnreadMarker = lastSeen != -1L && message.timestamp > lastSeen && (previous == null || previous.timestamp <= lastSeen) && !message.isOutgoing
+        if (shouldShowUnreadMarker) {
+            markerContainerBinding.value.root.isVisible = true
+        } else if (markerContainerBinding.isInitialized()) {
+            // Only need to hide the binding when the binding is inflated. (default is gone)
+            markerContainerBinding.value.root.isVisible = false
+        }
 
         // Date break
         val showDateBreak = isStartOfMessageCluster || snIsSelected
@@ -214,21 +230,22 @@ class VisibleMessageView : LinearLayout {
         showStatusMessage(message)
 
         // Emoji Reactions
-        val emojiLayoutParams = binding.emojiReactionsView.root.layoutParams as ConstraintLayout.LayoutParams
-        emojiLayoutParams.horizontalBias = if (message.isOutgoing) 1f else 0f
-        binding.emojiReactionsView.root.layoutParams = emojiLayoutParams
-
         if (message.reactions.isNotEmpty()) {
             val capabilities = lokiThreadDb.getOpenGroupChat(threadID)?.server?.let { lokiApiDb.getServerCapabilities(it) }
             if (capabilities.isNullOrEmpty() || capabilities.contains(OpenGroupApi.Capability.REACTIONS.name.lowercase())) {
-                binding.emojiReactionsView.root.setReactions(message.id, message.reactions, message.isOutgoing, delegate)
-                binding.emojiReactionsView.root.isVisible = true
-            } else {
-                binding.emojiReactionsView.root.isVisible = false
+                emojiReactionsBinding.value.root.let { root ->
+                    root.setReactions(message.id, message.reactions, message.isOutgoing, delegate)
+                    root.isVisible = true
+                    (root.layoutParams as ConstraintLayout.LayoutParams).apply {
+                        horizontalBias = if (message.isOutgoing) 1f else 0f
+                    }
+                }
+            } else if (emojiReactionsBinding.isInitialized()) {
+                emojiReactionsBinding.value.root.isVisible = false
             }
         }
-        else {
-            binding.emojiReactionsView.root.isVisible = false
+        else if (emojiReactionsBinding.isInitialized()) {
+            emojiReactionsBinding.value.root.isVisible = false
         }
 
         // Populate content view

app/src/main/java/org/thoughtcrime/securesms/dependencies/AppModule.kt

@@ -19,11 +19,11 @@ abstract class AppModule {
 
     @Binds
     abstract fun bindConversationRepository(repository: DefaultConversationRepository): ConversationRepository
-
 }
 
 @EntryPoint
 @InstallIn(SingletonComponent::class)
 interface AppComponent {
     fun getPrefs(): TextSecurePreferences
+
 }

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageView
+<LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
@@ -8,45 +8,11 @@
     android:layout_height="wrap_content"
     android:orientation="vertical">
 
-    <androidx.constraintlayout.widget.ConstraintLayout
-        android:id="@+id/unreadMarkerContainer"
+    <ViewStub
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginBottom="@dimen/small_spacing"
-        android:visibility="gone"
-        tools:visibility="visible">
-        <View
-            android:layout_width="0dp"
-            android:layout_height="1dp"
-            android:layout_marginStart="@dimen/medium_spacing"
-            android:layout_marginEnd="@dimen/small_spacing"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toStartOf="@id/unreadMarker"
-            android:background="?android:colorAccent" />
-        <TextView
-            android:id="@+id/unreadMarker"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:text="@string/unread_marker"
-            android:gravity="center"
-            android:textColor="?android:colorAccent"
-            android:textSize="@dimen/small_font_size"
-            android:textStyle="bold" />
-        <View
-            android:layout_width="0dp"
-            android:layout_height="1dp"
-            android:layout_marginStart="@dimen/small_spacing"
-            android:layout_marginEnd="@dimen/medium_spacing"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintStart_toEndOf="@id/unreadMarker"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:background="?android:colorAccent" />
-    </androidx.constraintlayout.widget.ConstraintLayout>
+        android:id="@+id/unreadMarkerContainerStub"
+        android:layout="@layout/viewstub_visible_message_marker_container" />
 
     <TextView
         android:id="@+id/dateBreakTextView"
@@ -129,8 +95,10 @@
             </LinearLayout>
         </FrameLayout>
 
-        <include layout="@layout/view_emoji_reactions"
+        <ViewStub
+            android:layout="@layout/view_emoji_reactions"
             android:id="@+id/emojiReactionsView"
+            android:inflatedId="@+id/emojiReactionsView"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:visibility="gone"
@@ -176,4 +144,4 @@
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 
-</org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageView>
+</LinearLayout>