Flutter: how to get DPI of device screen

[Luca Dal Poz]

Is there a way to get the actual value of screen DPI in Flutter (Dart)??

I need that value to calculate many other stuffs, and so it's not enought for me to use integrated Flutter features about responsiveness.

I really need a raw DPI value. 

I mean for example like: 

MediaQuery.of(context).dpi //but it doesn't exists

Thank you so much

[Reme Le Hane]

MediaQuery.of(context).devicePixelRatio

You were like right there, ctrl+space would have brought up a list of options on MediaQuery.of(context).

[Luca Dal Poz]

Thank you, but I already knew about ctrl+space and I already knew about MediaQuery.of(context).devicePixelRatio

but unfortunately it's value is not what I'm actually looking for.

I give you an example:

    MediaQuery.of(context).devicePixelRatio = 2.625 (in my device)

but I'm looking for a value that is tipically greater than 100 like 420dpi

... so how you can see those values are quite differents

[Мурат Байсангуров]

You should multiply this value by 160 (dpi with devicePixelRatio = 1) and you will get your real dpi value

вторник, 12 ноября 2019 г., 14:05:57 UTC+3 пользователь Luca Dal Poz написал:

[Benedicte Roussel]

To calculate screen density, you can use this equation:

Screen density = Screen width (or height) in pixels / Screen width (or height) in inches

104 19,685 5,283210566

208 39,3701 5,283197147

Le mardi 12 novembre 2019 à 15:54:59 UTC+1, Мурат Байсангуров <b.mo...@gmail.com> a écrit :

You should multiply this value by 160 (dpi with devicePixelRatio = 1) and you will get your real dpi value

вторник, 12 ноября 2019 г., 14:05:57 UTC+3 пользователь Luca Dal Poz написал:

Thank you, but I already knew about ctrl+space and I already knew about MediaQuery.of(context). devicePixelRatio

but unfortunately it's value is not what I'm actually looking for.

I give you an example:

    MediaQuery.of(context). devicePixelRatio = 2.625 (in my device)

but I'm looking for a value that is tipically greater than 100 like 420dpi

... so how you can see those values are quite differents

Il giorno martedì 12 novembre 2019 11:50:32 UTC+1, Reme Le Hane ha scritto:

MediaQuery.of(context).deviceP ixelRatio

You were like right there, ctrl+space would have brought up a list of options on MediaQuery.of(context).

On Tuesday, 12 November 2019 12:24:36 UTC+2, Luca Dal Poz wrote:

Is there a way to get the actual value of screen DPI in Flutter (Dart)??

I need that value to calculate many other stuffs, and so it's not enought for me to use integrated Flutter features about responsiveness.

I really need a raw DPI value. 

I mean for example like: 

MediaQuery.of(context).dpi //but it doesn't exists

Thank you so much

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