How to set aspect ratio in xml (dimens.xml in values folder) to set different aspect ratio depending on devices?

Question

Maybe a stupid question but in android how can I set aspect ratio in xml (dimens.xml in values folder) to set different aspect ratio depending on devices

I tried :

layout.xml

app:layout_constraintDimensionRatio="@dimen/common_image_aspect_ratio"

values/dimens.xml

<dimen name="common_image_aspect_ratio">3:2</dimen>

but it doesn't seem to work.

Any help would be appreciated, thx :)

follow this https://stackoverflow.com/questions/32860815/how-to-define-dimens-xml-for-every-different-screen-size-in-android — PushpikaWan, Nov 18 '18 at 11:56

Muhammadjon · Accepted Answer · 2018-11-18T12:00:31.850

5

Try to write 1.5 instead of 3:2. Generally, you should use decimal format, not fractional. Hope it will help.

edited Nov 18 '18 at 12:00

answered Nov 18 '18 at 11:55

Muhammadjon

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indeed it was a stupid question I didn't think about it. I'm waiting the 10min before set your answer as correct – sokarcreative Nov 18 '18 at 12:01
Happy to help you. – Muhammadjon Nov 18 '18 at 12:04

score 0 · Answer 2 · answered Nov 03 '22 at 12:09

If you want to define a resource for in the form 3:2 you should use a String:

// values.xml
<string name="common_image_aspect_ratio">3:2</string>

// layout.xml
app:layout_constraintDimensionRatio="@string/common_image_aspect_ratio"

Using a String also applies when setting a ratio programatically:

 (view.layoutParams as ConstraintLayout.LayoutParams).dimensionRatio = "3:2"

How to set aspect ratio in xml (dimens.xml in values folder) to set different aspect ratio depending on devices?

2 Answers2