Android開發實現圖片圓角的方法_Android

本文講述了Android開發實現圖片圓角的方法。分享給大家供大家參考，具體如下：

Bitmap myCoolBitmap = ... ; // <-- Your bitmap you want roundedint 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;}

更多關於Android相關內容感興趣的讀者可查看本站專題：《Android圖形與影像處理技巧總結》、《Android開發入門與進階教程》、《Android調試技巧與常見問題解決方案匯總》、《Android多媒體操作技巧匯總(音頻,視頻,錄音等)》、《Android基本組件用法總結》、《Android視圖View技巧總結》、《Android布局layout技巧總結》及《Android控制項用法總結》

希望本文所述對大家Android程式設計有所協助。