Android - ImageView

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1 - About

image view

3 - Resources

int iconId = R.drawable.my_Icon

4 - Property

5 - Dimension

For an DPI explanation, see multiple screen and Devices and Displays

DPI Number Number of Pixel
by Dpi
MDPI ~160 DPI 1x
HDPI ~240 DPI 1,5x
XHDPI ~320 DPI 2x
XXHDPI ~480 DPI 3x
XXXHDPI ~640 DPI 4x

Dpi vs Pixel Icon:

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