Android Open Source - base-android-utils Display Utils

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License

The source code is released under:

Apache License

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Java Source Code

/**   
 * @Title: DisplayUtils.java //from www  .  j  a v a2 s .c om
 * @Package me.pc.mobile.helper.util 
 * @Description: TODO
 * @author SilentKnight || happychinapc[at]gmail[dot]com   
 * @date 2014 2014?12?4? ????3:55:29 
 * @version V1.0.0   
 */
package me.pc.mobile.helper.v14.util;

import android.content.Context;

/**
 * @ClassName: DisplayUtils
 * @Description: TODO
 * @author SilentKnight || happychinapc@gmail.com
 * @date 2014?12?4? ????3:55:29
 * 
 */
public final class DisplayUtils {
  private DisplayUtils() {
  }

  public static int px2Dp(Context ctx, float pxValue) {
    final float density = ctx.getResources().getDisplayMetrics().density;
    return (int) (pxValue / density + 0.5f);
  }

  public static int dp2Px(Context ctx, float dpValue) {
    final float density = ctx.getResources().getDisplayMetrics().density;
    return (int) (dpValue * density + 0.5f);
  }

  public static int sp2Px(Context ctx, float spValue) {
    final float scaledDensity = ctx.getResources().getDisplayMetrics().scaledDensity;
    return (int) (spValue * scaledDensity + 0.5f);
  }

  public static int px2Sp(Context ctx, float pxValue) {
    final float scaledDensity = ctx.getResources().getDisplayMetrics().scaledDensity;
    return (int) (pxValue / scaledDensity + 0.5f);
  }

  public static int dp2Sp(Context ctx, float dpValue) {
    final float density = ctx.getResources().getDisplayMetrics().scaledDensity;
    final float scaledDensity = ctx.getResources().getDisplayMetrics().scaledDensity;
    return (int) (dpValue * density / scaledDensity + 0.5f);
  }

  public static int sp2Dp(Context ctx, float spValue) {
    final float density = ctx.getResources().getDisplayMetrics().scaledDensity;
    final float scaledDensity = ctx.getResources().getDisplayMetrics().scaledDensity;
    return (int) (spValue * scaledDensity / density + 0.5f);
  }
}

Java Source Code List