Created
June 1, 2016 08:38
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| public static class BlurTransformation implements com.squareup.picasso.Transformation { | |
| private final float radius; | |
| private Context mContext; | |
| // radius is corner radii in dp | |
| public BlurTransformation(final float radius, Context context) { | |
| this.radius = radius; | |
| this.mContext = context; | |
| } | |
| @Override | |
| public Bitmap transform(final Bitmap source) { | |
| int width = Math.round(source.getWidth()); | |
| int height = Math.round(source.getHeight()); | |
| Bitmap inputBitmap = Bitmap.createScaledBitmap(source, width, height, true); | |
| Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap); | |
| RenderScript rs = RenderScript.create(mContext); | |
| ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs)); | |
| Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap); | |
| Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap); | |
| theIntrinsic.setRadius(radius); | |
| theIntrinsic.setInput(tmpIn); | |
| theIntrinsic.forEach(tmpOut); | |
| tmpOut.copyTo(outputBitmap); | |
| return outputBitmap; | |
| } | |
| @Override | |
| public String key() { | |
| return "blur" + Float.toString(radius); | |
| } | |
| } | |
| } |
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