Created
October 8, 2016 14:12
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CircleTransform for Picasso
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package com.tneciv.daydream.widget; | |
import android.graphics.Bitmap; | |
import android.graphics.BitmapShader; | |
import android.graphics.Canvas; | |
import android.graphics.Paint; | |
import com.squareup.picasso.Transformation; | |
import static android.R.attr.x; | |
import static android.R.attr.y; | |
public class CircleTransform implements Transformation { | |
@Override | |
public Bitmap transform(Bitmap source) { | |
int size = Math.min(source.getWidth(), source.getHeight()); | |
int x = (source.getWidth() - size) / 2; | |
int y = (source.getHeight() - size) / 2; | |
Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size); | |
if (squaredBitmap != source) { | |
source.recycle(); | |
} | |
Bitmap.Config config = source.getConfig() != null ? source.getConfig() : Bitmap.Config.ARGB_8888; | |
Bitmap bitmap = Bitmap.createBitmap(size, size, config); | |
Canvas canvas = new Canvas(bitmap); | |
Paint paint = new Paint(); | |
BitmapShader shader = new BitmapShader(squaredBitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP); | |
paint.setShader(shader); | |
paint.setAntiAlias(true); | |
float r = size / 2f; | |
canvas.drawCircle(r, r, r, paint); | |
squaredBitmap.recycle(); | |
return bitmap; | |
} | |
@Override | |
public String key() { | |
return "circle(x=" + x + ",y=" + y + ")"; | |
} | |
} |
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