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PO
 

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  1. PO
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    <p>Since you're saying that it's a never ending drawable, probably you're writing a game of some sort. If your image is a <a href="http://en.wikipedia.org/wiki/Pixel_art" rel="nofollow">pixel-art type</a>, then you don't want any scaling; pixel-art-type images cannot be scaled and keep its crisp look (you can try using <a href="http://en.wikipedia.org/wiki/Nearest-neighbor_interpolation" rel="nofollow">nearest neighbor interpolation</a> and scaling to an integer multiple of the original, which sometimes might work, but sometimes you will still need manual tweaks). This is the rare case where you actually would need to have different image resource for different screen resolutions.</p> <p>Otherwise you might want to use a <a href="http://en.wikipedia.org/wiki/Vector_graphics" rel="nofollow">vector image</a>, but if -- as you said -- your original is a high resolution image, then vector image probably won't help much here.</p> <p>btw, you probably want to show some screenshot. "Looks ugly" is just as helpful as saying my code does not work.</p>
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    1. POAndroid Drawable looks ugly due to scaling
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    1. USLie Ryan
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    1. POAndroid Drawable looks ugly due to scaling
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    1. COThanks for your answer. Sorry for leaving no picture. It is a pixel-art bitmap. There is just the problem that I don't know, which size and resolution my image should have and which folder(drawable, drawable-hdpi, drawable-normal-mdpi and so on) it has to be in. I already studied the pages of google talking about this topic but this gives me no clue. The width of the image is the width of the screen, the height is set to 80dip. Another question: why is this the 'rare case'?
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    2. CO@Till: because most of the time, you will usually use vector images or images that is smooth and so can be rescaled automatically. Pixel-art, on the other hand, usually requires manual tweaking to the rescaled image. Try disabling bilinear filtering (and so, using nearest-neighbor filter), and see if it works better in your case: `Bitmap.createScaledBitmap(backgroundImage, (int) (canvasWidth * sf), canvasHeight, false);`. Make sure to resize only to an integer or a small fraction multiples of the original image (e.g. if original is 100x100, you can try 300x300, 200x200, 50x50, 25x25, 20x20)
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    3. CO@Till: try to play in Photoshop or GIMP or whatever your favorite image editor is, and try to find a setting which looks acceptable, and then try to reproduce this setting in Android (or just ships multiple bitmaps if you can't reproduce the setting in Android). Make sure to use nearest neighbor filtering or a specialized pixel-art rescale filter (e.g. scale2x), since you don't want the blurred edges that other rescale filters makes (those filters are useful for photos, where the blurred edges increases the "perceived" image resolution; in your case you want a clean, crisp edge)
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