Unity 3D - Get Smart Banner size in pixels

[iulian dima]

Could someone post a working script for calculating the Smart Banner size in pixels?

I want to place a banner at the bottom of the screen and rearrange my UI layout based on the banner's height.

I come up with the following code after reading the Admob guide and looking into other sources, but it's not giving the correct height when testing on some devices. 

    int CalculateBannerHeight() {
 
         if (Screen.height <= 400*Screen.dpi/160) {
 
             return Mathf.RoundToInt(32*Screen.dpi/160);
         
         } else if (Screen.height <= 720*Screen.dpi/160) {
             
             return Mathf.RoundToInt(50*Screen.dpi/160);
         
         } else {
 
             return Mathf.RoundToInt(90*Screen.dpi/160);
         
         }
 
     }  

[Veer Arjun Busani]

Hi Iulian,

Would you be able to send us more details, such as logs and the type of device in question? Also you could retry with the following snippet - 

int CalculateBannerHeight() {
    if (Screen.height <= 720 * (Screen.dpi / 160)) {
        if (Screen.height > 400 * (Screen.dpi / 160)) {
            return Mathf.RoundToInt (50 * (Screen.dpi / 160));
        } else if (Screen.height <= 400 * (Screen.dpi / 160)) {
            return Mathf.RoundToInt (32 * (Screen.dpi / 160));
        }
    } else {
        return Mathf.RoundToInt(90* (Screen.dpi/160));
    }
}  

Thanks,

Veer Arjun Busani

Mobile Ads SDK Team

[iulian dima]

Hi,

For example when making a test on iPad Air, using this code I get 148 pixels for the banner height ( the screen dpi is 264, resulting  Mathf.RoundToInt(90* 264/160) = 148) while the true height is 180 pixels, I got this value by making a screenshot and manually measuring it.

Thanks,

Iulian

[Veer Arjun Busani]

Hi Iulian.

If you simply want to know the height of a SMART_BANNER, you read more about Banner size considerations. Also the size mentioned there are already in density-pixel[DP]. Now coming to your point, while the formula is right, you forgot to consider the scale factor for retina devices. 

For iPad Air, the scale would be @2x. So now the DPI would be 160 * 2(scale) = 320 DPI. Now convert using the formula px = dp * (Screen.dpi/ 160). Banner height (px) = 90 * (320/160) = 180px. You can read more here.

Thanks ,

[iulian dima]

I was able to find the right way to calculate the banner's height. It seems that the screen dpi is considered as a multiple of 160, so in this case the script would be the following:

    int CalculateBannerHeight() {
        if (Screen.height <= 400*Mathf.RoundToInt(Screen.dpi/160)) {
            return 32*Mathf.RoundToInt(Screen.dpi/160);
        } else if (Screen.height <= 720*Mathf.RoundToInt(Screen.dpi/160)) {
            return 50*Mathf.RoundToInt(Screen.dpi/160);
        } else {
            return 90*Mathf.RoundToInt(Screen.dpi/160);
        }
    }

Cheers,

Iulian