UBports Robot Logo UBports Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Register
    • Login

    New App: Chromium PDF

    Scheduled Pinned Locked Moved App Development
    15 Posts 5 Posters 281 Views 3 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
      Reply
      • Reply as topic
      Log in to reply
      This topic has been deleted. Only users with topic management privileges can see it.
      • pparentP Online
        pparent @arubislander
        last edited by

        @arubislander

        Thank's for your remarks I will take into account.

        1 Reply Last reply Reply Quote 0
        • pparentP Online
          pparent
          last edited by

          I made a new revision (0.1.2) with New branding, back button working, and removing useless permissions for the app.

          Except in case of a bug, this should be go to go without other updates in the following days, and possibly until Qt6.

          1 Reply Last reply Reply Quote 0
          • Vlad NirkyV Online
            Vlad Nirky @pparent
            last edited by Vlad Nirky

            @pparent
            Why not use the document viewer?
            The PDF file displays correctly on my mobile phone:

            c5c76d94-a08f-4083-9de0-73bbe187d513-screenshot20251017_161517413.png /home/jll/Téléchargements/4/screenshot20251017_161517413.png

            pparentP 1 Reply Last reply Reply Quote 0
            • pparentP Online
              pparent @Vlad Nirky
              last edited by pparent

              @Vlad-Nirky said in New App: Chromium PDF:

              Why not use the document viewer?

              Cos it's very buggy at least on my vollaphone 22 (and it also was on my previous phones). It does not zoom well: it displays blank screen for several seconds each time you try to change zoom, and on top of that position gets lost when zooming.

              Also the top menu keeps appearing and disappearing when scrolling vertically, making the display very unstable (sometimes it oscillates at rapid pace)

              See:

              https://gitlab.com/ubports/development/apps/lomiri-docviewer-app/-/issues/45
              https://gitlab.com/ubports/development/apps/lomiri-docviewer-app/-/issues/71
              https://gitlab.com/ubports/development/apps/lomiri-docviewer-app/-/issues/72

              Vlad NirkyV 1 Reply Last reply Reply Quote 0
              • Vlad NirkyV Online
                Vlad Nirky @pparent
                last edited by

                @pparent
                Ah, OK...
                I hadn't really noticed this issue, the white flashes are quite short and I haven't encountered any scrolling issues on the Xiaomi Redmi Note 9 Pro.
                I understand the approach better now, thank you.

                pparentP 1 Reply Last reply Reply Quote 0
                • pparentP Online
                  pparent @Vlad Nirky
                  last edited by pparent

                  @Vlad-Nirky

                  For me (on Volla phone 22) the flashes are not quite short especially when zooming a lot into the PDF.

                  I use PDF reading mainly for tickets (train, events, concerts) with a small QR-code inside the pdf, and I have to zoom on the QR-Code to display it fullscreen as fast as possible. With document viewer it take ages to do that.

                  Vlad NirkyV 1 Reply Last reply Reply Quote 0
                  • Vlad NirkyV Online
                    Vlad Nirky @pparent
                    last edited by

                    @pparent
                    Perhaps could you add CI in the app folder.

                    .gitlab-ci.yml

                    arm64:
                    stage: build
                    artifacts:
                    expire_in: 1 week
                    paths:
                    - build//app/.click
                    image: clickable/ci-ut24.04-1.x-amd64
                    script:
                    - clickable build
                    armhf:
                    stage: build
                    artifacts:
                    expire_in: 1 week
                    paths:
                    - build//app/.click
                    image: clickable/ci-ut24.04-1.x-armhf
                    script:
                    - clickable build

                    1 Reply Last reply Reply Quote 0
                    • D Offline
                      domubpkm
                      last edited by

                      @pparent Hi. Thanks for your app. I have a volla 22 like you. It is a good phone with Noble but currently we have the same little problem as with focal : laggy, jerky scrolling in some cases. : https://forums.ubports.com/post/85827 . Do you think it is possible to improve scrolling a little in your app ? Thanks

                      pparentP 1 Reply Last reply Reply Quote -1
                      • pparentP Online
                        pparent @domubpkm
                        last edited by pparent

                        @domubpkm

                        In Chromium PDF the zooming & scrolling is mostly fine and quite responsive, much better than document viewer.

                        Although I think performance will still improve with Qt6 to be perfectly fluid, and with Qt6 PDF.js might be even better than Chromium PDF, and we'll get top-notch PDF reader.

                        D 1 Reply Last reply Reply Quote 0
                        • D Offline
                          domubpkm @pparent
                          last edited by

                          @pparent Your app is very good and the improvement was made by volla 22 itself: I am now on dev 486 and scrolling on volla has improved considerably.

                          1 Reply Last reply Reply Quote 0
                          • First post
                            Last post