1fa7192728
First of all: Take all measurements I mention with a grain of salt – all of them are rough and not necessarily measured more than a few times. All times were measured on an Xperia X run via SDK. Visiting a chat page can take a long time, especially before the qml is cached by the engine. When opening it for the first time after application launch, it sometimes takes >1000ms from onClicked (OverviewPage) to Component.OnCompleted (Chatpage). Subsequent activations take roughly 470-480ms. With these changes, I was able to reduce these times to ~450ms for the first, ~100ms for subsequent activations of the ChatPage on my test device. Things changed: - The components for displaying extra content to a message are (mostly) gone and replaced by a single Loader. This Loader does not use sourceComponent to trade the initial compilation boost for a neglegible bit of runtime penalty. - Connections were consolidated - I was surprised how costly the inclusion of the RemorseItem was (compiling ~75ms, initializing up to ~20ms for every delegate). So I traded a bit for a compromise. deleteMessageRemorseItem is now defined on the appWindow level, where it gets a bit mitigated by the animations at application start. Also, only one deletion at a time is now possible. We can easily revert this change, but I thought it worthwhile despite its drawbacks. - profileThumbnailComponent is now defined directly as sourceComponent, removing the need for its id. Probably didn't do anything. - InReplyToRow had width: parent.width, so I removed horizontalCenter. Also probably didn't change compilation time at all. - Another compromise I was willing to take – your opinion may differ: The PickerPages took ages (~200ms) to just parse/compile inside those Components, so I replaced them with the "string notation" of pageStack.push. Drawback: The first time a picker gets activated, you'll see how slow it is. Subsequent activations aren't that bad – also for the other pickers.
41 lines
1.2 KiB
QML
41 lines
1.2 KiB
QML
/*
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Copyright (C) 2020 Sebastian J. Wolf and other contributors
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This file is part of Fernschreiber.
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Fernschreiber is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Fernschreiber is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fernschreiber. If not, see <http://www.gnu.org/licenses/>.
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*/
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import QtQuick 2.0
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import Sailfish.Silica 1.0
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import "pages"
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ApplicationWindow
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{
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id: appWindow
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initialPage: Qt.resolvedUrl("pages/OverviewPage.qml")
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cover: Qt.resolvedUrl("pages/CoverPage.qml")
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allowedOrientations: defaultAllowedOrientations
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RemorseItem {
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id: deleteMessageRemorseItem
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}
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Connections {
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target: dBusAdaptor
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onPleaseOpenMessage: {
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appWindow.activate();
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}
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}
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}
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