Android Question Perfect rectangle?

wimpie3 · Aug 10, 2016

When I draw a rectangle on the Activity having width = activity.width and height = activity.width (which means the rectangle has the same width as height) the resulting rectangle is NOT a perfect rectangle. It looks higher than its width. What am I missing here? A pixel density problem? How can I draw a perfect rectangle?

NJDude · Aug 10, 2016

What you are doing is drawing a square not a rectangle.

e.g: Activity.Width = 100dip

According to your code posted above:

Width = 100dip
Height = 100dip

wimpie3 · Aug 10, 2016

Exactly what I'm saying: a square with 100dip x 100dip looks like a rectangle on my mobile!

klaus · Aug 10, 2016

You should post your code, or better post a small project showing the problem !
Without seeing your it's impossible to give a concrete advice !

ivan.tellez · Aug 11, 2016

The exact physical pixels per inch of the screen in the X dimension could be not the same as in the Y dimension. "dip" are units independ.

Try:

B4X:

Sub Activity_Create (FirstTime As Boolean)
   Dim r As Reflector
   r.Target = r.GetContext
   r.Target = r.RunMethod("getResources")
   r.Target = r.RunMethod("getDisplayMetrics")
   Log(r.GetField("xdpi"))
   Log(r.GetField("ydpi"))
End Sub

Android Question Perfect rectangle?

wimpie3

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NJDude

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wimpie3

Well-Known Member

klaus

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ivan.tellez

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Android Question Perfect rectangle?

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