In Android, how to configure the startup picture of mui to prevent it from being stretched out of shape?

problem description

when app, developed in hbuilder environment starts, the startup page image is deformed

the environmental background of the problems and what methods you have tried

the resolution of the test phone is 720x1440, while the startup picture is 720x1242, and the picture format is .9.png

Mar.15,2022

different sizes of startup images should be made for different phone resolutions. You can make a 720-1440 startup picture. The front end cannot be controlled by CSS. The startup image

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When the mobile jump page returns, there will be an inexplicable pop-up window.
The page does the function of the page before the jump after the completion of the event, using the method of adding returnUrl on Url, but when testing on the mobile side, a pop-up window will appear to show the path of the page to be redirected before r...

Ios android javascript html5

Feb.28,2021