Android圆形图片的实现以及设置边缘颜色、宽度
public static Bitmap getCircleAvatar(Context context, Bitmap avatar, int color, int value) {
Bitmap bitmap = Bitmap.createBitmap(avatar.getWidth(), avatar.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(Color.BLACK);
canvas.drawCircle(avatar.getWidth() / 2, avatar.getHeight() / 2,
avatar.getWidth() / 2 < avatar.getHeight() / 2 ? avatar.getWidth() / 2 : avatar.getHeight() / 2,
paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(avatar, 0, 0, paint);
paint.setColor(color);
paint.setStyle(Paint.Style.STROKE);
float strokeWidth =
TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, value,
context.getResources().getDisplayMetrics());
paint.setStrokeWidth(strokeWidth);
canvas.drawCircle(avatar.getWidth() / 2, avatar.getHeight() / 2,
avatar.getWidth() / 2 < avatar.getHeight() / 2 ? avatar.getWidth() / 2 : avatar.getHeight() / 2
- strokeWidth / 2, paint);
return bitmap;
}