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public static int dpToPx(Context context, int dp) {
	Resources r = context.getResources();
	float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics());
	return (int) px;
}

public static int pxToDp(Context context, int px) {
	final float scale = context.getResources().getDisplayMetrics().density;
	int dp = (int) (px * scale + 0.5f);
	return dp;
}