How to check an Android device is HDPI screen or MDPI screen?

Question

I want to check this to fetch different images by internet. How to do that?

Answer 1

You should always check the interval not only break point values!

According to android documentation: https://developer.android.com/reference/android/util/DisplayMetrics

Check it like this in Kotlin:

    when {
                val density: Float = context?.resources?.displayMetrics?.density

                // ldpi
                (density <= 0.75f) -> mulFactor = 0.75f

                // mdpi
                (density >= 0.75f && density <= 1.0f) -> mulFactor = 1.0f

                // hdpi
                (density > 1.0f && density <= 1.5f) -> mulFactor = 1.5f

                // xhdpi
                (density > 1.5f && density <= 2.0f) -> mulFactor = 2.0f

                // xxhdpi
                (density > 2.0f && density <= 3.0f) -> mulFactor = 3.0f

                // xxxhdpi
                (density > 3.0f) -> mulFactor = 4.0f

         }
         return mulFactor;