android 加载圆形头像框

Glide.with(PersonalActivity.this).load(userInfo.getAlbum()).transform(new CircleTransform(PersonalActivity.this)).into(mHeadimg);//头像

/** * 加载圆形头像框 */public static class CircleTransform extends BitmapTransformation {    public CircleTransform(Context context) {        super(context);    }    @Override    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {        return circleCrop(pool, toTransform);    }    private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {        if (source == null) return null;        int size = Math.min(source.getWidth(), source.getHeight());        int x = (source.getWidth() - size) / 2;        int y = (source.getHeight() - size) / 2;        // TODO this could be acquired from the pool too        Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);        Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);        if (result == null) {            result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);        }        Canvas canvas = new Canvas(result);        Paint paint = new Paint();        paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));        paint.setAntiAlias(true);        float r = size / 2f;        canvas.drawCircle(r, r, r, paint);        return result;    }    @Override    public String getId() {        return getClass().getName();    }}

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