Picasso设置圆形图片

Picasso

在使用的过程中获得原型图片

Picasso.with(getContext()).load(Bean.getList().get(position).getAvatar()).transform(new CircleTransform())//设置圆形图片.into(viewHolder.ivAvatar);

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 bitmap = Bitmap.createBitmap(size, size, source.getConfig());

        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";
    }
}

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