为图片加水印
@override<br> public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.main);
imageview iv=(imageview)findviewbyid(r.id.testimageview);
<br> drawable d=this.getresources().getdrawable(r.drawable.icon);
<br> bitmap bm=createbitmap(drawabletobitmap(d),drawabletobitmap(this.getresources().getdrawable(r.drawable.bonus_delivery_small)));
<br> iv.setimagebitmap(bm);<br> }<br>
//drawable转换bitmap<br> public static bitmap drawabletobitmap(drawable drawable) { <br> <br> bitmap bitmap = bitmap <br> .createbitmap( <br> drawable.getintrinsicwidth(), <br> drawable.getintrinsicheight(), <br> drawable.getopacity() != pixelformat.opaque ? bitmap.config.argb_8888 <br> : bitmap.config.rgb_565); <br> canvas canvas = new canvas(bitmap); <br> //canvas.setbitmap(bitmap); <br> drawable.setbounds(0, 0, drawable.getintrinsicwidth(), drawable.getintrinsicheight()); <br> drawable.draw(canvas); <br> return bitmap; <br>}
//icon加入水印
private bitmap createbitmap( bitmap src, bitmap watermark ) <br> { <br> string tag = "createbitmap"; <br> log.d( tag, "create a new bitmap" ); <br> if( src == null ) <br> { <br> return null; <br> } int w = src.getwidth(); <br> int h = src.getheight(); <br> int ww = watermark.getwidth(); <br> int wh = watermark.getheight(); <br> //create the new blank bitmap <br> bitmap newb = bitmap.createbitmap( w, h, config.argb_8888 );//创建一个新的和src长度宽度一样的位图 <br> canvas cv = new canvas( newb ); <br> //draw src into <br> cv.drawbitmap( src, 0, 0, null );//在 0，0坐标开始画入src <br> //draw watermark into <br> cv.drawbitmap( watermark, w - ww-6, h - wh-2, null );//在src的右下角画入水印 <br> //save all clip <br> cv.save( canvas.all_save_flag );//保存 <br> //store <br> cv.restore();//存储 <br> return newb; <br> }
作者“tianlanlan”
补充：软件开发 , Java ,
