ImageUtils.java 文件源码

/**
 * 转为圆形图片
 *
 * @param src     源图片
 * @param recycle 是否回收
 * @return 圆形图片
 */
public static Bitmap toRound(final Bitmap src, final boolean recycle) {
    if (isEmptyBitmap(src)) return null;
    int width = src.getWidth();
    int height = src.getHeight();
    int radius = Math.min(width, height) >> 1;
    Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
    Paint paint = new Paint();
    Canvas canvas = new Canvas(ret);
    Rect rect = new Rect(0, 0, width, height);
    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    canvas.drawCircle(width >> 1, height >> 1, radius, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(src, rect, rect, paint);
    if (recycle && !src.isRecycled()) src.recycle();
    return ret;
}