Check how many inch the user drags on the screen

Question

Before I use Input.mousePosition to determine how far did the user drag on the screen. But for some features it is not reasonable.

For example, I need the user to drag for half of the screen on the iPhone to activate a feature, you won't ask the user to drag for half of the screen on iPad (suppose they have the same resolution, i.e. Input.mousePosition gives the same value).

Or iPad mini and iPad mini retina has the same device dimension and they have totally different resolution. I cannot depend on the value of Input.mousePosition.

So what can I use? Thanksf or advice.

Answer 1

Best Answer

Answer by fanling3 · Jul 17, 2014 at 03:35 AM

 var widthInInches = Screen.width / Screen.dpi;

This is what I need, I guess

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Answer 2

Answer by codestage · Jul 16, 2014 at 08:30 AM

You may use Screen.dpi to take into account the density of the pixels.

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fanling3 · Jul 17, 2014 at 03:29 AM 0

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I think this parameter is sill not a perfect one. At lease iphone 5 has higher DPI then iPad2 but the screen of iPad2 is obviously larger

codestage · Jul 17, 2014 at 08:15 AM 0

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I didn't meant solo usage of Screen.dpi, you got me right looking at your example above.

fanling3 · Jul 18, 2014 at 07:52 AM 1

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Thanks for hint

Check how many inch the user drags on the screen

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