dp sp 转换 px

package com.wong.utils;

import android.content.Context;

public class CommonUtils {
    /**
     * 将dp转换为与之相等的px
     */
    public static int dp2px(Context context, float dp) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dp * scale + 0.5f);
    }

    /**
     * 将px转换为与之相等的dp
     */
    public static int px2dp(Context context, float px) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (px / scale + 0.5f);
    }

    /**
     * 将px转换为与之相等的sp
     */
    public static int px2sp(Context context, float px) {
        final float scale = context.getResources().getDisplayMetrics().scaledDensity;
        return (int) (px / scale + 0.5f);
    }

    /**
     * 将sp转换为与之相等的px
     */
    public static int sp2px(Context context, float sp) {
        final float scale = context.getResources().getDisplayMetrics().scaledDensity;
        return (int) (sp * scale + 0.5f);
    }

}