Glide加载图片显示圆形和圆角矩形图片

Glide加载显示圆形图片：

public class GlideCircleTransfromUtil extends BitmapTransformation {
    public GlideCircleTransfromUtil(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();
    }
}

public static void displayRound(Context context, ImageView imageView, String url, int img) {
        if (imageView == null) {
            throw new IllegalArgumentException("argument error");
        }
        Glide.with(context).load(url).placeholder(img)
                .error(img)
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .transform(new GlideCircleTransfromUtil(context))
                .into(imageView);
    }

Glide加载显示圆角矩形图片：

public class GlideRoundTransformUtil extends BitmapTransformation {
    private static float radius = 0f;

    public GlideRoundTransformUtil(Context context) {
        this(context, 4);
    }

    public GlideRoundTransformUtil(Context context, int dp) {
        super(context);
        this.radius = Resources.getSystem().getDisplayMetrics().density * dp;
    }


    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        return roundCrop(pool, toTransform);
    }

    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null) return null;

        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        }

        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }

    @Override
    public String getId() {
        return getClass().getName() + Math.round(radius);
    }

}

 public static void displayRound(Context context, ImageView imageView, String url, int img) {
        if (imageView == null) {
            throw new IllegalArgumentException("argument error");
        }
        Glide.with(context).load(url).placeholder(img)
                .error(img)
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .transform(new GlideRoundTransformUtil(context, 10))
                .into(imageView);
    }