绘制圆形ImageView
时间：2014-03-27 19:25:56
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[导读] 01 /** 02 * Returns a circular cropped version of the bitmap passed in.
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/** |
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* Returns a circular cropped version of the bitmap passed in. |
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*/ |
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public static Bitmap getCroppedBitmap(Bitmap bitmap) { |
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Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), |
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Config.ARGB_8888); |
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final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); |
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Canvas canvas = new Canvas(output); |
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final Paint paint = new Paint(); |
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paint.setAntiAlias(true); |
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int halfWidth = bitmap.getWidth() / 2; |
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int halfHeight = bitmap.getHeight() / 2; |
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canvas.drawCircle(halfWidth, halfHeight, Math.max(halfWidth, halfHeight), paint); |
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paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); |
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canvas.drawBitmap(bitmap, rect, rect, paint); |
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return output; |
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} |
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