On 1 July 2014 15:33, Alexander Zakharov <alexander.v.zakha...@gmail.com> wrote:
> > My testing result: > > > > Qt 5.3.0 + Nexus 5 (4.4.2) > > primaryScreen()->physicalDotsPerInch() 443.934 > > Qt 5.3.0 + Samsung Galaxy Note 2 > > primaryScreen()->physicalDotsPerInch() 264.903 > > > > Qt 5.3.1 + Nexus 5 (4.4.2) > > primaryScreen()->physicalDotsPerInch() 453.754 > > Qt 5.3.1 + Samsung Galaxy Note 2 > > primaryScreen()->physicalDotsPerInch() 270.284 > > > > Although it don't return infinity , Qt 5.3.1 produces value different > > than 5.3.0 > > Thanks, your results pushed my thoughts in a right direction. In my > program physicalDotsPerInch() is called from the main window's > constructor and it is this call that stopped working. Calling > physicalDotsPerInch() later, when the main window is shown, produces a > value of 151.588, which is (almost) correct (I do not remember the exact > DPI produced by 5.3.0, but it was close). > > btw , There has another report to say it return infinity https://bugreports.qt-project.org/browse/QTBUG-35701 (last comment) > > btw , I got another issue after upgraded to Qt 5.3.1 on Android.. Seem > > that there has some large changes from 5.3.0 to 5.3.1 > > [#QTBUG-39977] Full screen mode do not work correctly on Nexus 5 v4.4.2 > > - Qt Bug Tracker > > < > https://bugreports.qt-project.org/browse/QTBUG-39977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-249119 > > > > I do not use full screen mode in my application (the main window is > always maximized), so I did not test it in 5.3.0 and earlier versions. > However, now, when I change showMaximized() call to showFullScreen() in > the main window's constructor, the bottom bar does not disappear, but > stays on screen, partially hiding the window, as shown in Step 3 > screenshot of the described bug. > Thank you~
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