本文讲述了Android开发实现图片圆角的方法。分享给大家供大家参考，具体如下：
Bitmap myCoolBitmap = ... ; // <-- Your bitmap you want rounded int w = myCoolBitmap.getWidth(), h = myCoolBitmap.getHeight(); Bitmap rounder = Bitmap.createBitmap(w,h,Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(rounder); Paint xferPaint = new Paint(Paint.ANTI_ALIAS_FLAG); xferPaint.setColor(Color.RED); canvas.drawRoundRect(new RectF(0,0,w,h), 20.0f, 20.0f, xferPaint); xferPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN)); canvas.drawBitmap(myCoolBitmap, 0,0, null); canvas.drawBitmap(rounder, 0, 0, xferPaint);
或者：
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) { Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); final RectF rectF = new RectF(rect); final float roundPx = 12; paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(color); canvas.drawRoundRect(rectF, roundPx, roundPx, paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); canvas.drawBitmap(bitmap, rect, rect, paint); return output; }
希望本文所述对大家Android程序设计有所帮助。
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