学步园

/**<br /> *<br /> * [图片缩放]<BR><br /> * [功能详细描述]<br /> *<br /> * @param bitmapOrg<br /> * @param dstw<br /> * @param dsth<br /> * @return<br /> */<br /> public static Bitmap resizeImage(Bitmap bitmapOrg, int dstw, int dsth)<br /> {</p> <p> Bitmap resizedBitmap;<br /> int srcw = bitmapOrg.getWidth();<br /> int srch = bitmapOrg.getHeight();</p> <p> // 如果长宽小于生成的目标图片，直接返回图片<br /> if (srcw <= dstw && srch <= dsth)<br /> {</p> <p> return bitmapOrg;<br /> }<br /> // else if (srcw > dstw && srch < dsth)<br /> // {<br /> //<br /> // resizedBitmap<br /> //<br /> //<br /> // }</p> <p> float scaleWidth = ((float) dstw) / srcw;<br /> float scaleHeight = ((float) dsth) / srch;</p> <p> // create a matrix for the manipulation<br /> Matrix matrix = new Matrix();<br /> // resize the Bitmap<br /> matrix.postScale(scaleWidth, scaleHeight);<br /> // if you want to rotate the Bitmap<br /> // matrix.postRotate(45);</p> <p> // recreate the new Bitmap<br /> resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, srcw, srch,<br /> matrix, true);<br /> bitmapOrg.recycle();<br /> // make a Drawable from Bitmap to allow to set the Bitmap<br /> // to the ImageView, ImageButton or what ever<br /> return resizedBitmap;</p> <p> }</p> <p> /**<br /> *<br /> * [ 图像圆角处理]<BR><br /> * [功能详细描述]<br /> *<br /> * @param bitmap<br /> * @param roundPX<br /> * @return<br /> */<br /> public static Bitmap getRCB(Bitmap bitmap, float roundPX) //RCB means Rounded Corner Bitmap<br /> {<br /> Bitmap dstbmp = Bitmap.createBitmap(bitmap.getWidth(),<br /> bitmap.getHeight(), Config.ARGB_8888);<br /> Canvas canvas = new Canvas(dstbmp);</p> <p> final int color = 0xff424242;<br /> final Paint paint = new Paint();<br /> final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());<br /> final RectF rectF = new RectF(rect);<br /> paint.setAntiAlias(true);<br /> canvas.drawARGB(0, 0, 0, 0);<br /> paint.setColor(color);<br /> canvas.drawRoundRect(rectF, roundPX, roundPX, paint);<br /> paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));<br /> canvas.drawBitmap(bitmap, rect, rect, paint);</p> <p> return dstbmp;<br /> }