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androidbitmappngpixel

Loaded bitmap has smaller size than the source png

I have a png image of 280 × 558 pixels. But when I load it with 

BitmapFactory.decodeResource(getResources, R.drawable.image_name)

the created Bitmap size is 186 × 371.

That happens with the Nexus 7 using the images in the drawable-large-xhdpi folder. The ldpi and mdpi devices load their respective images in drawable-ldpi and drawable-mdpi correctly.

Why is this happening?

Solution

  • Nexus 7 is not xhdpi, it's scaling images from hdpi to tvdpi

    Google Nexus 7 | 4.1 | tvdpi (but will scale down your hdpi assets

    See: http://blog.blundellapps.com/list-of-android-devices-with-pixel-density-buckets/

    To load image without scaling, use the inScaled option of BitmapFactory.Options. Using these options, you can also scale to different dpi.

    See: http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inScaled