Android Open Source - CheckListView Density Util

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Back to project page CheckListView.

License

The source code is released under:

Apache License

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Java Source Code

package it.feio.android.checklistview.utils;
//from  w w w  .j  ava  2  s  .  c om
import android.content.Context;
import android.util.DisplayMetrics;

public class DensityUtil {

    private DensityUtil(){

    }

    /**
     * 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 int dpToPx(float dp, Context context) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        int px = Math.round(dp * (displayMetrics.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 int pxToDp(float px, Context context) {
        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
        int dp = Math.round(px / (displayMetrics.densityDpi / 160f));
        return dp;
    }
}

Java Source Code List