A little bit of lazy loading for the chat view...

qml/pages/ChatPage.qml

@@ -84,7 +84,6 @@ Page {
     }
 
     function initializePage() {
-        chatModel.initialize(chatInformation.id);
         var chatType = chatInformation.type['@type'];
         isPrivateChat = ( chatType === "chatTypePrivate" );
         isBasicGroup = ( chatType === "chatTypeBasicGroup" );
@@ -102,8 +101,6 @@ Page {
             isChannel = chatGroupInformation.is_channel;
             updateGroupStatusText();
         }
-        tdLibWrapper.getChatHistory(chatInformation.id);
-        chatPage.loading = false;
     }
 
     Component.onCompleted: {
@@ -114,6 +111,9 @@ Page {
         if (status === PageStatus.Activating) {
             tdLibWrapper.openChat(chatInformation.id);
         }
+        if (status === PageStatus.Active) {
+            chatModel.initialize(chatInformation.id);
+        }
         if (status === PageStatus.Deactivating) {
             tdLibWrapper.closeChat(chatInformation.id);
         }
@@ -151,6 +151,7 @@ Page {
     Connections {
         target: chatModel
         onMessagesReceived: {
+            chatPage.loading = false;
             chatView.positionViewAtEnd();
         }
         onNewMessageReceived: {
@@ -173,7 +174,6 @@ Page {
         contentHeight: parent.height
         contentWidth: parent.width
         anchors.fill: parent
-        visible: !chatPage.loading
 
         Column {
             id: chatColumn
@@ -235,14 +235,21 @@ Page {
                 }
             }
 
-            SilicaListView {
-                id: chatView
-
+            Item {
+                id: chatViewItem
                 width: parent.width
                 height: parent.height - ( 2 * Theme.paddingMedium ) - headerRow.height - newMessageColumn.height
 
+                SilicaListView {
+                    id: chatView
+
+                    anchors.fill: parent
+
+                    opacity: chatPage.loading ? 0 : 1
+                    Behavior on opacity { NumberAnimation {} }
+                    visible: !chatPage.loading
+
                     clip: true
-                visible: count > 0
 
                     function handleScrollPositionChanged() {
                         tdLibWrapper.viewMessage(chatInformation.id, chatView.itemAt(chatView.contentX, ( chatView.contentY + chatView.height - Theme.horizontalPageMargin )).myMessage.id);
@@ -262,7 +269,6 @@ Page {
                     }
 
                     onCurrentIndexChanged: {
-                    console.log("Current index: " + currentIndex);
                         tdLibWrapper.viewMessage(chatInformation.id, currentItem.myMessage.id);
                     }
 
@@ -464,6 +470,31 @@ Page {
                     VerticalScrollDecorator {}
                 }
 
+                Column {
+                    width: parent.width
+                    height: loadingLabel.height + loadingBusyIndicator.height + Theme.paddingMedium
+                    spacing: Theme.paddingMedium
+                    anchors.verticalCenter: parent.verticalCenter
+
+                    opacity: chatPage.loading ? 1 : 0
+                    Behavior on opacity { NumberAnimation {} }
+                    visible: chatPage.loading
+
+                    InfoLabel {
+                        id: loadingLabel
+                        text: qsTr("Loading messages...")
+                    }
+
+                    BusyIndicator {
+                        id: loadingBusyIndicator
+                        anchors.horizontalCenter: parent.horizontalCenter
+                        running: chatPage.loading
+                        size: BusyIndicatorSize.Large
+                    }
+                }
+
+            }
+
             Column {
                 id: newMessageColumn
                 spacing: Theme.paddingMedium

qml/pages/OverviewPage.qml

@@ -38,7 +38,6 @@ Page {
     property bool chatListCreated: false;
 
     onStatusChanged: {
-        console.log("[OverviewPage] Status changed: " + status + ", initialization completed: " + initializationCompleted);
         if (status === PageStatus.Active && initializationCompleted && !chatListCreated) {
             updateContent();
         }

src/chatmodel.cpp

@@ -52,6 +52,7 @@ void ChatModel::initialize(const QString &chatId)
     this->messages.clear();
     this->messageIndexMap.clear();
     this->messagesToBeAdded.clear();
+    tdLibWrapper->getChatHistory(chatId);
 }
 
 void ChatModel::triggerLoadMoreHistory()

translations/harbour-fernschreiber-de.ts

@@ -141,12 +141,16 @@
         <source>%1 subscribers</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Reply to Message</source>
+        <translation type="unfinished"></translation>
+    </message>
     <message>
         <source>You</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Reply to Message</source>
+        <source>Loading messages...</source>
         <translation type="unfinished"></translation>
     </message>
 </context>

translations/harbour-fernschreiber.ts

@@ -141,12 +141,16 @@
         <source>%1 subscribers</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Reply to Message</source>
+        <translation type="unfinished"></translation>
+    </message>
     <message>
         <source>You</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Reply to Message</source>
+        <source>Loading messages...</source>
         <translation type="unfinished"></translation>
     </message>
 </context>