圆角java对png图片圆角处理 保持png透明背景

java对PNG图片圆角处理保持PNG透明背景

**/public static StringmakeRoundedCorner(Stringsrc ImageFile,Stringresult,Stringtype,intc ornerRadius){try{

BufferedImageimag e=ImageIO.read(newFile(srcImageFile));intw=imag e.g etWidth();inth=im age.get He ight();

BufferedImageoutput=new BufferedImage(w,h,BufferedImage.TYPE_INT_ARG B);

Graphic s2Dg2=output.createGraphic s();output=g2.getDevic eConfiguration().createCompatib leImage(w,h,Transparency.TRANSLUCEN

T);g2.dispos e();g2=output.c reateGraphic s();g2.s etRenderingHint(Rend ering Hints.KEY_ANTIALI ASING,Render ing Hints.VALUE_ANTI ALI AS_ON);g2.fillRoundRect(0,0,w,h,c ornerRadius,c ornerRadius);g2.setComposite(AlphaComposite.SrcIn);g2.draw Image(image,0,0,w,h,null);g2.dispos e();

ImageI O.write(output,type,new F ile(result));r eturnre s ult;

}catch(IOExceptione){e.printStackTrac e();

}r e tur nnu ll;}