pixel과 dp를 자연스럽게 바꿀 수 있는 코드입니다.
예를 들어 이미지를 코드로 넣을 경우 매우 유용하게 사용될 것입니다. ^^
/** * This method converts dp unit to equivalent pixels, depending on device density. * * @param dp A value in dp (density independent pixels) unit. Which we need to convert into pixels * @param context Context to get resources and device specific display metrics * @return A float value to represent px equivalent to dp depending on device density */ public static float convertDpToPixel(float dp, Context context){ Resources resources = context.getResources(); DisplayMetrics metrics = resources.getDisplayMetrics(); float px = dp * (metrics.densityDpi / 160f); return px; }
/** * This method converts device specific pixels to density independent pixels. * * @param px A value in px (pixels) unit. Which we need to convert into db * @param context Context to get resources and device specific display metrics * @return A float value to represent dp equivalent to px value */ public static float convertPixelsToDp(float px, Context context){ Resources resources = context.getResources(); DisplayMetrics metrics = resources.getDisplayMetrics(); float dp = px / (metrics.densityDpi / 160f); return dp; } |
출처 : http://stackoverflow.com/questions/4605527/converting-pixels-to-dp
